[PATCH 5.10 000/151] 5.10.225-rc1 review

[PATCH 5.10 000/151] 5.10.225-rc1 review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 5.10.225 release.
There are 151 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Tue, 03 Sep 2024 16:07:34 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.225-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 5.10.225-rc1

Guenter Roeck <linux@roeck-us.net>
    apparmor: fix policy_unpack_test on big endian systems

Ben Hutchings <benh@debian.org>
    scsi: aacraid: Fix double-free on probe failure

Zijun Hu <quic_zijuhu@quicinc.com>
    usb: core: sysfs: Unmerge @usb3_hardware_lpm_attr_group in remove_power_attributes()

Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
    usb: dwc3: st: add missing depopulate in probe error path

Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
    usb: dwc3: st: fix probed platform device ref count on probe error path

Selvarasu Ganesan <selvarasu.g@samsung.com>
    usb: dwc3: core: Prevent USB core invalid event buffer address access

Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
    usb: dwc3: omap: add missing depopulate in probe error path

ZHANG Yuntian <yt@radxa.com>
    USB: serial: option: add MeiG Smart SRM825L

Ian Ray <ian.ray@gehealthcare.com>
    cdc-acm: Add DISABLE_ECHO quirk for GE HealthCare UI Controller

Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
    soc: qcom: cmd-db: Map shared memory as WC, not WB

Aleksandr Mishin <amishin@t-argos.ru>
    nfc: pn533: Add poll mod list filling check

Eric Dumazet <edumazet@google.com>
    net: busy-poll: use ktime_get_ns() instead of local_clock()

Cong Wang <cong.wang@bytedance.com>
    gtp: fix a potential NULL pointer dereference

Jamie Bainbridge <jamie.bainbridge@gmail.com>
    ethtool: check device is present when getting link settings

Serge Semin <fancer.lancer@gmail.com>
    dmaengine: dw: Add memory bus width verification

Serge Semin <fancer.lancer@gmail.com>
    dmaengine: dw: Add peripheral bus width verification

Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
    soundwire: stream: fix programming slave ports for non-continous port maps

Miklos Szeredi <mszeredi@redhat.com>
    ovl: do not fail because of O_NOATIME

Allison Henderson <allison.henderson@oracle.com>
    net:rds: Fix possible deadlock in rds_message_put

Chen Ridong <chenridong@huawei.com>
    cgroup/cpuset: Prevent UAF in proc_cpuset_show()

Niklas Cassel <cassel@kernel.org>
    ata: libata-core: Fix null pointer dereference on error

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Revert "Input: ioc3kbd - convert to platform remove callback returning void"

Ricardo Ribalda <ribalda@chromium.org>
    media: uvcvideo: Fix integer overflow calculating timestamp

Alex Deucher <alexander.deucher@amd.com>
    drm/amdkfd: don't allow mapping the MMIO HDP page with large pages

Rafael Aquini <aquini@redhat.com>
    ipc: replace costly bailout check in sysvipc_find_ipc()

Matthieu Baerts (NGI0) <matttbe@kernel.org>
    mptcp: sched: check both backup in retrans

Sascha Hauer <s.hauer@pengutronix.de>
    wifi: mwifiex: duplicate static structs used in driver instances

Ma Ke <make24@iscas.ac.cn>
    pinctrl: single: fix potential NULL dereference in pcs_get_function()

Huang-Huang Bao <i@eh5.me>
    pinctrl: rockchip: correct RK3328 iomux width flag for GPIO2-B pins

Sami Tolvanen <samitolvanen@google.com>
    KVM: arm64: Don't use cbz/adr with external symbols

Jesse Zhang <jesse.zhang@amd.com>
    drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc

Alexander Lobakin <aleksander.lobakin@intel.com>
    tools: move alignment-related macros to new <linux/align.h>

Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
    Input: MT - limit max slots

Lee, Chun-Yi <joeyli.kernel@gmail.com>
    Bluetooth: hci_ldisc: check HCI_UART_PROTO_READY flag in HCIUARTGETPROTO

Kuniyuki Iwashima <kuniyu@amazon.com>
    nfsd: Don't call freezable_schedule_timeout() after each successful page allocation in svc_alloc_arg().

Takashi Iwai <tiwai@suse.de>
    ALSA: timer: Relax start tick time check for slave timer elements

Alex Hung <alex.hung@amd.com>
    Revert "drm/amd/display: Validate hw_points_num before using it"

Ben Whitten <ben.whitten@gmail.com>
    mmc: dw_mmc: allow biu and ciu clocks to defer

Marc Zyngier <maz@kernel.org>
    KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3

Nikolay Kuratov <kniv@yandex-team.ru>
    cxgb4: add forgotten u64 ivlan cast before shift

Siarhei Vishniakou <svv@google.com>
    HID: microsoft: Add rumble support to latest xbox controllers

Jason Gerecke <jason.gerecke@wacom.com>
    HID: wacom: Defer calculation of resolution until resolution_code is known

Jiaxun Yang <jiaxun.yang@flygoat.com>
    MIPS: Loongson64: Set timer mode in cpu-probe

Laurent Vivier <laurent@vivier.eu>
    binfmt_misc: pass binfmt_misc flags to the interpreter

Griffin Kroah-Hartman <griffin@kroah.com>
    Bluetooth: MGMT: Add error handling to pair_device()

Dan Carpenter <dan.carpenter@linaro.org>
    mmc: mmc_test: Fix NULL dereference on allocation failure

Abhinav Kumar <quic_abhinavk@quicinc.com>
    drm/msm/dp: reset the link phy params before link training

Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
    drm/msm/dpu: don't play tricks with debug macros

Sean Anderson <sean.anderson@linux.dev>
    net: xilinx: axienet: Fix dangling multicast addresses

Sean Anderson <sean.anderson@linux.dev>
    net: xilinx: axienet: Always disable promiscuous mode

Eric Dumazet <edumazet@google.com>
    ipv6: prevent UAF in ip6_send_skb()

Stephen Hemminger <stephen@networkplumber.org>
    netem: fix return value if duplicate enqueue fails

Joseph Huang <Joseph.Huang@garmin.com>
    net: dsa: mv88e6xxx: Fix out-of-bound access

Vladimir Oltean <vladimir.oltean@nxp.com>
    net: dsa: mv88e6xxx: replace ATU violation prints with trace points

Hans J. Schultz <netdev@kapio-technology.com>
    net: dsa: mv88e6xxx: read FID when handling ATU violations

Maciej Fijalkowski <maciej.fijalkowski@intel.com>
    ice: fix ICE_LAST_OFFSET formula

Nikolay Aleksandrov <razor@blackwall.org>
    bonding: fix xfrm state handling when clearing active slave

Nikolay Aleksandrov <razor@blackwall.org>
    bonding: fix xfrm real_dev null pointer dereference

Nikolay Aleksandrov <razor@blackwall.org>
    bonding: fix null pointer deref in bond_ipsec_offload_ok

Nikolay Aleksandrov <razor@blackwall.org>
    bonding: fix bond_ipsec_offload_ok return type

Thomas Bogendoerfer <tbogendoerfer@suse.de>
    ip6_tunnel: Fix broken GRO

Sebastian Andrzej Siewior <bigeasy@linutronix.de>
    netfilter: nft_counter: Synchronize nft_counter_reset() against reader.

Kuniyuki Iwashima <kuniyu@amazon.com>
    kcm: Serialise kcm_sendmsg() for the same socket.

Simon Horman <horms@kernel.org>
    tc-testing: don't access non-existent variable on exception

Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
    Bluetooth: SMP: Fix assumption of Central always being Initiator

Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
    Bluetooth: hci_core: Fix LE quote calculation

Mikulas Patocka <mpatocka@redhat.com>
    dm suspend: return -ERESTARTSYS instead of -EINTR

Aurelien Jarno <aurelien@aurel32.net>
    media: solo6x10: replace max(a, min(b, c)) by clamp(b, a, c)

Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
    block: use "unsigned long" for blk_validate_block_size().

Eric Dumazet <edumazet@google.com>
    gtp: pull network headers in gtp_dev_xmit()

Phil Chang <phil.chang@mediatek.com>
    hrtimer: Prevent queuing of hrtimer without a function callback

Sagi Grimberg <sagi@grimberg.me>
    nvmet-rdma: fix possible bad dereference when freeing rsps

Baokun Li <libaokun1@huawei.com>
    ext4: set the type of max_zeroout to unsigned int to avoid overflow

Guanrui Huang <guanrui.huang@linux.alibaba.com>
    irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc

Abdulrasaq Lawani <abdulrasaqolawani@gmail.com>
    fbdev: offb: replace of_node_put with __free(device_node)

Krishna Kurapati <quic_kriskura@quicinc.com>
    usb: dwc3: core: Skip setting event buffers for host only controllers

Alexander Gordeev <agordeev@linux.ibm.com>
    s390/iucv: fix receive buffer virtual vs physical address confusion

Oreoluwa Babatunde <quic_obabatun@quicinc.com>
    openrisc: Call setup_memory() earlier in the init sequence

NeilBrown <neilb@suse.de>
    NFS: avoid infinite loop in pnfs_update_layout.

Hannes Reinecke <hare@suse.de>
    nvmet-tcp: do not continue for invalid icreq

Jian Shen <shenjian15@huawei.com>
    net: hns3: add checking for vf id of mailbox

Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
    Bluetooth: bnep: Fix out-of-bound access

Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    usb: gadget: fsl: Increase size of name buffer for endpoints

Zhiguo Niu <zhiguo.niu@unisoc.com>
    f2fs: fix to do sanity check in update_sit_entry

David Sterba <dsterba@suse.com>
    btrfs: delete pointless BUG_ON check on quota root in btrfs_qgroup_account_extent()

David Sterba <dsterba@suse.com>
    btrfs: send: handle unexpected data in header buffer in begin_cmd()

David Sterba <dsterba@suse.com>
    btrfs: handle invalid root reference found in may_destroy_subvol()

David Sterba <dsterba@suse.com>
    btrfs: change BUG_ON to assertion when checking for delayed_node root

Michael Ellerman <mpe@ellerman.id.au>
    powerpc/boot: Only free if realloc() succeeds

Li zeming <zeming@nfschina.com>
    powerpc/boot: Handle allocation failure in simple_realloc()

Helge Deller <deller@gmx.de>
    parisc: Use irq_enter_rcu() to fix warning at kernel/context_tracking.c:367

Christophe Kerello <christophe.kerello@foss.st.com>
    memory: stm32-fmc2-ebi: check regmap_read return value

Kees Cook <keescook@chromium.org>
    x86: Increase brk randomness entropy for 64-bit systems

Li Nan <linan122@huawei.com>
    md: clean up invalid BUG_ON in md_ioctl

Eric Dumazet <edumazet@google.com>
    netlink: hold nlk->cb_mutex longer in __netlink_dump_start()

Stefan Hajnoczi <stefanha@redhat.com>
    virtiofs: forbid newlines in tags

Erico Nunes <nunes.erico@gmail.com>
    drm/lima: set gp bus_stop bit before hard reset

Kees Cook <keescook@chromium.org>
    net/sun3_82586: Avoid reading past buffer in debug output

Justin Tee <justin.tee@broadcom.com>
    scsi: lpfc: Initialize status local variable in lpfc_sli4_repost_sgl_list()

Max Filippov <jcmvbkbc@gmail.com>
    fs: binfmt_elf_efpic: don't use missing interpreter's properties

Hans Verkuil <hverkuil-cisco@xs4all.nl>
    media: pci: cx23885: check cx23885_vdev_init() return

Jan Kara <jack@suse.cz>
    quota: Remove BUG_ON from dqget()

Baokun Li <libaokun1@huawei.com>
    ext4: do not trim the group with corrupted block bitmap

Daniel Wagner <dwagner@suse.de>
    nvmet-trace: avoid dereferencing pointer too early

Kunwu Chan <chentao@kylinos.cn>
    powerpc/xics: Check return value of kasprintf in icp_native_map_one_cpu

Chengfeng Ye <dg573847474@gmail.com>
    IB/hfi1: Fix potential deadlock on &irq_src_lock and &dd->uctxt_lock

Miri Korenblit <miriam.rachel.korenblit@intel.com>
    wifi: iwlwifi: abort scan when rfkill on but device enabled

Andreas Gruenbacher <agruenba@redhat.com>
    gfs2: setattr_chown: Add missing initialization

Mike Christie <michael.christie@oracle.com>
    scsi: spi: Fix sshdr use

Hans Verkuil <hverkuil-cisco@xs4all.nl>
    media: qcom: venus: fix incorrect return value

Christian Brauner <christian.brauner@ubuntu.com>
    binfmt_misc: cleanup on filesystem umount

Chengfeng Ye <dg573847474@gmail.com>
    staging: ks7010: disable bh on tx_dev_lock

Alex Hung <alex.hung@amd.com>
    drm/amd/display: Validate hw_points_num before using it

David Lechner <dlechner@baylibre.com>
    staging: iio: resolver: ad2s1210: fix use before initialization

Hans Verkuil <hverkuil-cisco@xs4all.nl>
    media: radio-isa: use dev_name to fill in bus_info

Heiko Carstens <hca@linux.ibm.com>
    s390/smp,mcck: fix early IPI handling

Zhu Yanjun <yanjun.zhu@linux.dev>
    RDMA/rtrs: Fix the problem of variable not initialized fully

Wolfram Sang <wsa+renesas@sang-engineering.com>
    i2c: riic: avoid potential division by zero

Jeff Johnson <quic_jjohnson@quicinc.com>
    wifi: cw1200: Avoid processing an invalid TIM IE

Johannes Berg <johannes.berg@intel.com>
    wifi: mac80211: fix BA session teardown race

Rand Deeb <rand.sec96@gmail.com>
    ssb: Fix division by zero issue in ssb_calc_clock_rate

Parsa Poorshikhian <parsa.poorsh@gmail.com>
    ALSA: hda/realtek: Fix noise from speakers on Lenovo IdeaPad 3 15IAU7

Jie Wang <wangjie125@huawei.com>
    net: hns3: fix a deadlock problem when config TC during resetting

Jie Wang <wangjie125@huawei.com>
    net: hns3: fix wrong use of semaphore up

Donald Hunter <donald.hunter@gmail.com>
    netfilter: flowtable: initialise extack before use

Eugene Syromiatnikov <esyr@redhat.com>
    mptcp: correct MPTCP_SUBFLOW_ATTR_SSN_OFFSET reserved size

Pawel Dembicki <paweldembicki@gmail.com>
    net: dsa: vsc73xx: check busy flag in MDIO operations

Pawel Dembicki <paweldembicki@gmail.com>
    net: dsa: vsc73xx: use read_poll_timeout instead delay loop

Pawel Dembicki <paweldembicki@gmail.com>
    net: dsa: vsc73xx: pass value in phy_write operation

Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
    net: axienet: Fix register defines comment description

Dan Carpenter <dan.carpenter@linaro.org>
    atm: idt77252: prevent use after free in dequeue_rx()

Cosmin Ratiu <cratiu@nvidia.com>
    net/mlx5e: Correctly report errors for ethtool rx flows

Claudio Imbrenda <imbrenda@linux.ibm.com>
    s390/uv: Panic for set and remove shared access UVC errors

Alexander Lobakin <aleksander.lobakin@intel.com>
    btrfs: rename bitmap_set_bits() -> btrfs_bitmap_set_bits()

Alexander Lobakin <aleksander.lobakin@intel.com>
    s390/cio: rename bitmap_size() -> idset_bitmap_size()

Alex Deucher <alexander.deucher@amd.com>
    drm/amdgpu/jpeg2: properly set atomics vmid field

Al Viro <viro@zeniv.linux.org.uk>
    memcg_write_event_control(): fix a user-triggerable oops

Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
    drm/amdgpu: Actually check flags for all context ops.

Qu Wenruo <wqu@suse.com>
    btrfs: tree-checker: add dev extent item checks

Zhen Lei <thunder.leizhen@huawei.com>
    selinux: fix potential counting error in avc_add_xperms_decision()

Al Viro <viro@zeniv.linux.org.uk>
    fix bitmap corruption on close_range() with CLOSE_RANGE_UNSHARE

Alexander Lobakin <aleksander.lobakin@intel.com>
    bitmap: introduce generic optimized bitmap_size()

Zhihao Cheng <chengzhihao1@huawei.com>
    vfs: Don't evict inode under the inode lru traversing context

Mikulas Patocka <mpatocka@redhat.com>
    dm persistent data: fix memory allocation failure

Khazhismel Kumykov <khazhy@google.com>
    dm resume: don't return EINVAL when signalled

Haibo Xu <haibo1.xu@intel.com>
    arm64: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE

Stefan Haberland <sth@linux.ibm.com>
    s390/dasd: fix error recovery leading to data corruption on ESE devices

Mika Westerberg <mika.westerberg@linux.intel.com>
    thunderbolt: Mark XDomain as unplugged when router is removed

Mathias Nyman <mathias.nyman@linux.intel.com>
    xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration

Juan José Arboleda <soyjuanarbol@gmail.com>
    ALSA: usb-audio: Support Yamaha P-125 quirk entry

Jann Horn <jannh@google.com>
    fuse: Initialize beyond-EOF page contents before setting uptodate


-------------

Diffstat:

 Makefile                                           |   4 +-
 arch/arm64/kernel/acpi_numa.c                      |   2 +-
 arch/arm64/kvm/hyp/entry.S                         |   6 +-
 arch/arm64/kvm/sys_regs.c                          |   6 +
 arch/arm64/kvm/vgic/vgic.h                         |   7 +
 arch/mips/kernel/cpu-probe.c                       |   4 +
 arch/openrisc/kernel/setup.c                       |   6 +-
 arch/parisc/kernel/irq.c                           |   4 +-
 arch/powerpc/boot/simple_alloc.c                   |   7 +-
 arch/powerpc/sysdev/xics/icp-native.c              |   2 +
 arch/s390/include/asm/uv.h                         |   5 +-
 arch/s390/kernel/early.c                           |  12 +-
 arch/s390/kernel/smp.c                             |   4 +-
 arch/x86/kernel/process.c                          |   5 +-
 drivers/ata/libata-core.c                          |   3 +
 drivers/atm/idt77252.c                             |   9 +-
 drivers/bluetooth/hci_ldisc.c                      |   3 +-
 drivers/dma/dw/core.c                              |  89 ++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c            |   8 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c            |   3 +-
 drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c             |   4 +-
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c           |   5 +-
 drivers/gpu/drm/lima/lima_gp.c                     |  12 ++
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h            |  14 +-
 drivers/gpu/drm/msm/dp/dp_ctrl.c                   |   2 +
 drivers/hid/hid-ids.h                              |  10 +-
 drivers/hid/hid-microsoft.c                        |  11 +-
 drivers/hid/wacom_wac.c                            |   4 +-
 drivers/i2c/busses/i2c-riic.c                      |   2 +-
 drivers/infiniband/hw/hfi1/chip.c                  |   5 +-
 drivers/infiniband/ulp/rtrs/rtrs.c                 |   2 +-
 drivers/input/input-mt.c                           |   3 +
 drivers/input/serio/ioc3kbd.c                      |   6 +-
 drivers/irqchip/irq-gic-v3-its.c                   |   2 -
 drivers/md/dm-clone-metadata.c                     |   5 -
 drivers/md/dm-ioctl.c                              |  22 ++-
 drivers/md/dm.c                                    |   4 +-
 drivers/md/md.c                                    |   5 -
 drivers/md/persistent-data/dm-space-map-metadata.c |   4 +-
 drivers/media/pci/cx23885/cx23885-video.c          |   8 +
 drivers/media/pci/solo6x10/solo6x10-offsets.h      |  10 +-
 drivers/media/platform/qcom/venus/pm_helpers.c     |   2 +-
 drivers/media/radio/radio-isa.c                    |   2 +-
 drivers/media/usb/uvc/uvc_video.c                  |  10 +-
 drivers/memory/stm32-fmc2-ebi.c                    | 122 ++++++++----
 drivers/mmc/core/mmc_test.c                        |   9 +-
 drivers/mmc/host/dw_mmc.c                          |   8 +
 drivers/net/bonding/bond_main.c                    |  21 +-
 drivers/net/bonding/bond_options.c                 |   2 +-
 drivers/net/dsa/mv88e6xxx/Makefile                 |   4 +
 drivers/net/dsa/mv88e6xxx/global1_atu.c            |  82 ++++++--
 drivers/net/dsa/mv88e6xxx/trace.c                  |   6 +
 drivers/net/dsa/mv88e6xxx/trace.h                  |  66 +++++++
 drivers/net/dsa/vitesse-vsc73xx-core.c             |  69 +++++--
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c  |   3 +-
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    |   3 +
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    |   4 +-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c |   7 +-
 .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c  |   4 +-
 drivers/net/ethernet/i825xx/sun3_82586.c           |   2 +-
 drivers/net/ethernet/intel/ice/ice_txrx.c          |   2 +-
 .../ethernet/mellanox/mlx5/core/en_fs_ethtool.c    |   2 +-
 drivers/net/ethernet/xilinx/xilinx_axienet.h       |  17 +-
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c  |  25 +--
 drivers/net/gtp.c                                  |   5 +-
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c      |   2 +-
 drivers/net/wireless/marvell/mwifiex/cfg80211.c    |  32 ++-
 drivers/net/wireless/st/cw1200/txrx.c              |   2 +-
 drivers/nfc/pn533/pn533.c                          |   5 +
 drivers/nvme/target/rdma.c                         |  16 +-
 drivers/nvme/target/tcp.c                          |   1 +
 drivers/nvme/target/trace.c                        |   6 +-
 drivers/nvme/target/trace.h                        |  28 +--
 drivers/pinctrl/pinctrl-rockchip.c                 |   2 +-
 drivers/pinctrl/pinctrl-single.c                   |   2 +
 drivers/s390/block/dasd.c                          |  36 ++--
 drivers/s390/block/dasd_3990_erp.c                 |  10 +-
 drivers/s390/block/dasd_eckd.c                     |  57 +++---
 drivers/s390/block/dasd_int.h                      |   2 +-
 drivers/s390/cio/idset.c                           |  12 +-
 drivers/scsi/aacraid/comminit.c                    |   2 +
 drivers/scsi/lpfc/lpfc_sli.c                       |   2 +-
 drivers/scsi/scsi_transport_spi.c                  |   4 +-
 drivers/soc/qcom/cmd-db.c                          |   2 +-
 drivers/soundwire/stream.c                         |   8 +-
 drivers/ssb/main.c                                 |   2 +-
 drivers/staging/iio/resolver/ad2s1210.c            |   7 +-
 drivers/staging/ks7010/ks7010_sdio.c               |   4 +-
 drivers/thunderbolt/switch.c                       |   1 +
 drivers/usb/class/cdc-acm.c                        |   3 +
 drivers/usb/core/sysfs.c                           |   1 +
 drivers/usb/dwc3/core.c                            |  21 ++
 drivers/usb/dwc3/dwc3-omap.c                       |   4 +-
 drivers/usb/dwc3/dwc3-st.c                         |  16 +-
 drivers/usb/gadget/udc/fsl_udc_core.c              |   2 +-
 drivers/usb/host/xhci.c                            |   8 +-
 drivers/usb/serial/option.c                        |   5 +
 drivers/video/fbdev/offb.c                         |   3 +-
 fs/binfmt_elf.c                                    |   5 +-
 fs/binfmt_elf_fdpic.c                              |   7 +-
 fs/binfmt_misc.c                                   | 220 ++++++++++++++++-----
 fs/btrfs/delayed-inode.c                           |   2 +-
 fs/btrfs/free-space-cache.c                        |   8 +-
 fs/btrfs/inode.c                                   |   9 +-
 fs/btrfs/qgroup.c                                  |   2 -
 fs/btrfs/send.c                                    |   7 +-
 fs/btrfs/tree-checker.c                            |  69 +++++++
 fs/ext4/extents.c                                  |   3 +-
 fs/ext4/mballoc.c                                  |   3 +
 fs/f2fs/segment.c                                  |   5 +-
 fs/file.c                                          |  28 ++-
 fs/fuse/dev.c                                      |   6 +-
 fs/fuse/virtio_fs.c                                |  10 +
 fs/gfs2/inode.c                                    |   2 +-
 fs/inode.c                                         |  39 +++-
 fs/nfs/pnfs.c                                      |   8 +
 fs/overlayfs/file.c                                |  11 +-
 fs/quota/dquot.c                                   |   5 +-
 include/linux/binfmts.h                            |   4 +
 include/linux/bitmap.h                             |  20 +-
 include/linux/blkdev.h                             |   2 +-
 include/linux/cpumask.h                            |   2 +-
 include/linux/fs.h                                 |   5 +
 include/net/busy_poll.h                            |   2 +-
 include/net/kcm.h                                  |   1 +
 include/uapi/linux/binfmts.h                       |   4 +
 ipc/util.c                                         |  16 +-
 kernel/cgroup/cpuset.c                             |  13 +-
 kernel/time/hrtimer.c                              |   2 +
 lib/math/prime_numbers.c                           |   2 -
 mm/memcontrol.c                                    |   7 +-
 net/bluetooth/bnep/core.c                          |   3 +-
 net/bluetooth/hci_core.c                           |  19 +-
 net/bluetooth/mgmt.c                               |   4 +
 net/bluetooth/smp.c                                | 146 +++++++-------
 net/core/net-sysfs.c                               |   2 +-
 net/ethtool/ioctl.c                                |   3 +
 net/ipv6/ip6_output.c                              |   2 +
 net/ipv6/ip6_tunnel.c                              |  12 +-
 net/iucv/iucv.c                                    |   3 +-
 net/kcm/kcmsock.c                                  |   4 +
 net/mac80211/agg-tx.c                              |   6 +-
 net/mac80211/driver-ops.c                          |   3 -
 net/mac80211/sta_info.c                            |  14 ++
 net/mptcp/diag.c                                   |   2 +-
 net/mptcp/protocol.c                               |   2 +-
 net/netfilter/nf_flow_table_offload.c              |   2 +-
 net/netfilter/nft_counter.c                        |   5 +
 net/netlink/af_netlink.c                           |  13 +-
 net/rds/recv.c                                     |  13 +-
 net/sched/sch_netem.c                              |  47 +++--
 net/sunrpc/svc_xprt.c                              |   2 +-
 security/apparmor/policy_unpack_test.c             |   6 +-
 security/selinux/avc.c                             |   2 +-
 sound/core/timer.c                                 |   2 +-
 sound/pci/hda/patch_realtek.c                      |   1 -
 sound/usb/quirks-table.h                           |   1 +
 tools/include/linux/align.h                        |  12 ++
 tools/include/linux/bitmap.h                       |   9 +-
 tools/testing/selftests/core/close_range_test.c    |  35 ++++
 tools/testing/selftests/tc-testing/tdc.py          |   1 -
 161 files changed, 1422 insertions(+), 597 deletions(-)

[PATCH 5.10 001/151] fuse: Initialize beyond-EOF page contents before setting uptodate

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jann Horn <jannh@google.com>

commit 3c0da3d163eb32f1f91891efaade027fa9b245b9 upstream.

fuse_notify_store(), unlike fuse_do_readpage(), does not enable page
zeroing (because it can be used to change partial page contents).

So fuse_notify_store() must be more careful to fully initialize page
contents (including parts of the page that are beyond end-of-file)
before marking the page uptodate.

The current code can leave beyond-EOF page contents uninitialized, which
makes these uninitialized page contents visible to userspace via mmap().

This is an information leak, but only affects systems which do not
enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the
corresponding kernel command line parameter).

Link: https://bugs.chromium.org/p/project-zero/issues/detail?id=2574
Cc: stable@kernel.org
Fixes: a1d75f258230 ("fuse: add store request")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/dev.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1627,9 +1627,11 @@ static int fuse_notify_store(struct fuse
 
 		this_num = min_t(unsigned, num, PAGE_SIZE - offset);
 		err = fuse_copy_page(cs, &page, offset, this_num, 0);
-		if (!err && offset == 0 &&
-		    (this_num == PAGE_SIZE || file_size == end))
+		if (!PageUptodate(page) && !err && offset == 0 &&
+		    (this_num == PAGE_SIZE || file_size == end)) {
+			zero_user_segment(page, this_num, PAGE_SIZE);
 			SetPageUptodate(page);
+		}
 		unlock_page(page);
 		put_page(page);
 

[PATCH 5.10 002/151] ALSA: usb-audio: Support Yamaha P-125 quirk entry

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Juan José Arboleda <soyjuanarbol@gmail.com>

commit c286f204ce6ba7b48e3dcba53eda7df8eaa64dd9 upstream.

This patch adds a USB quirk for the Yamaha P-125 digital piano.

Signed-off-by: Juan José Arboleda <soyjuanarbol@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20240813161053.70256-1-soyjuanarbol@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/quirks-table.h |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -273,6 +273,7 @@ YAMAHA_DEVICE(0x105a, NULL),
 YAMAHA_DEVICE(0x105b, NULL),
 YAMAHA_DEVICE(0x105c, NULL),
 YAMAHA_DEVICE(0x105d, NULL),
+YAMAHA_DEVICE(0x1718, "P-125"),
 {
 	USB_DEVICE(0x0499, 0x1503),
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {

[PATCH 5.10 003/151] xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mathias Nyman <mathias.nyman@linux.intel.com>

commit af8e119f52e9c13e556be9e03f27957554a84656 upstream.

re-enumerating full-speed devices after a failed address device command
can trigger a NULL pointer dereference.

Full-speed devices may need to reconfigure the endpoint 0 Max Packet Size
value during enumeration. Usb core calls usb_ep0_reinit() in this case,
which ends up calling xhci_configure_endpoint().

On Panther point xHC the xhci_configure_endpoint() function will
additionally check and reserve bandwidth in software. Other hosts do
this in hardware

If xHC address device command fails then a new xhci_virt_device structure
is allocated as part of re-enabling the slot, but the bandwidth table
pointers are not set up properly here.
This triggers the NULL pointer dereference the next time usb_ep0_reinit()
is called and xhci_configure_endpoint() tries to check and reserve
bandwidth

[46710.713538] usb 3-1: new full-speed USB device number 5 using xhci_hcd
[46710.713699] usb 3-1: Device not responding to setup address.
[46710.917684] usb 3-1: Device not responding to setup address.
[46711.125536] usb 3-1: device not accepting address 5, error -71
[46711.125594] BUG: kernel NULL pointer dereference, address: 0000000000000008
[46711.125600] #PF: supervisor read access in kernel mode
[46711.125603] #PF: error_code(0x0000) - not-present page
[46711.125606] PGD 0 P4D 0
[46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI
[46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 Not tainted 6.10.3_2 #1
[46711.125620] Hardware name: Gigabyte Technology Co., Ltd.
[46711.125623] Workqueue: usb_hub_wq hub_event [usbcore]
[46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c

Fix this by making sure bandwidth table pointers are set up correctly
after a failed address device command, and additionally by avoiding
checking for bandwidth in cases like this where no actual endpoints are
added or removed, i.e. only context for default control endpoint 0 is
evaluated.

Reported-by: Karel Balej <balejk@matfyz.cz>
Closes: https://lore.kernel.org/linux-usb/D3CKQQAETH47.1MUO22RTCH2O3@matfyz.cz/
Cc: stable@vger.kernel.org
Fixes: 651aaf36a7d7 ("usb: xhci: Handle USB transaction error on address command")
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20240815141117.2702314-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -2826,7 +2826,7 @@ static int xhci_configure_endpoint(struc
 				xhci->num_active_eps);
 		return -ENOMEM;
 	}
-	if ((xhci->quirks & XHCI_SW_BW_CHECKING) &&
+	if ((xhci->quirks & XHCI_SW_BW_CHECKING) && !ctx_change &&
 	    xhci_reserve_bandwidth(xhci, virt_dev, command->in_ctx)) {
 		if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK))
 			xhci_free_host_resources(xhci, ctrl_ctx);
@@ -4242,8 +4242,10 @@ static int xhci_setup_device(struct usb_
 		mutex_unlock(&xhci->mutex);
 		ret = xhci_disable_slot(xhci, udev->slot_id);
 		xhci_free_virt_device(xhci, udev->slot_id);
-		if (!ret)
-			xhci_alloc_dev(hcd, udev);
+		if (!ret) {
+			if (xhci_alloc_dev(hcd, udev) == 1)
+				xhci_setup_addressable_virt_dev(xhci, udev);
+		}
 		kfree(command->completion);
 		kfree(command);
 		return -EPROTO;

[PATCH 5.10 004/151] thunderbolt: Mark XDomain as unplugged when router is removed

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mika Westerberg <mika.westerberg@linux.intel.com>

commit e2006140ad2e01a02ed0aff49cc2ae3ceeb11f8d upstream.

I noticed that when we do discrete host router NVM upgrade and it gets
hot-removed from the PCIe side as a result of NVM firmware authentication,
if there is another host connected with enabled paths we hang in tearing
them down. This is due to fact that the Thunderbolt networking driver
also tries to cleanup the paths and ends up blocking in
tb_disconnect_xdomain_paths() waiting for the domain lock.

However, at this point we already cleaned the paths in tb_stop() so
there is really no need for tb_disconnect_xdomain_paths() to do that
anymore. Furthermore it already checks if the XDomain is unplugged and
bails out early so take advantage of that and mark the XDomain as
unplugged when we remove the parent router.

Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/thunderbolt/switch.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -2584,6 +2584,7 @@ void tb_switch_remove(struct tb_switch *
 			tb_switch_remove(port->remote->sw);
 			port->remote = NULL;
 		} else if (port->xdomain) {
+			port->xdomain->is_unplugged = true;
 			tb_xdomain_remove(port->xdomain);
 			port->xdomain = NULL;
 		}

[PATCH 5.10 005/151] s390/dasd: fix error recovery leading to data corruption on ESE devices

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stefan Haberland <sth@linux.ibm.com>

commit 7db4042336580dfd75cb5faa82c12cd51098c90b upstream.

Extent Space Efficient (ESE) or thin provisioned volumes need to be
formatted on demand during usual IO processing.

The dasd_ese_needs_format function checks for error codes that signal
the non existence of a proper track format.

The check for incorrect length is to imprecise since other error cases
leading to transport of insufficient data also have this flag set.
This might lead to data corruption in certain error cases for example
during a storage server warmstart.

Fix by removing the check for incorrect length and replacing by
explicitly checking for invalid track format in transport mode.

Also remove the check for file protected since this is not a valid
ESE handling case.

Cc: stable@vger.kernel.org # 5.3+
Fixes: 5e2b17e712cf ("s390/dasd: Add dynamic formatting support for ESE volumes")
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Link: https://lore.kernel.org/r/20240812125733.126431-3-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/block/dasd.c          |   36 +++++++++++++++---------
 drivers/s390/block/dasd_3990_erp.c |   10 +-----
 drivers/s390/block/dasd_eckd.c     |   55 ++++++++++++++++---------------------
 drivers/s390/block/dasd_int.h      |    2 -
 4 files changed, 50 insertions(+), 53 deletions(-)

--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1665,9 +1665,15 @@ static int dasd_ese_needs_format(struct
 	if (!sense)
 		return 0;
 
-	return !!(sense[1] & SNS1_NO_REC_FOUND) ||
-		!!(sense[1] & SNS1_FILE_PROTECTED) ||
-		scsw_cstat(&irb->scsw) == SCHN_STAT_INCORR_LEN;
+	if (sense[1] & SNS1_NO_REC_FOUND)
+		return 1;
+
+	if ((sense[1] & SNS1_INV_TRACK_FORMAT) &&
+	    scsw_is_tm(&irb->scsw) &&
+	    !(sense[2] & SNS2_ENV_DATA_PRESENT))
+		return 1;
+
+	return 0;
 }
 
 static int dasd_ese_oos_cond(u8 *sense)
@@ -1688,7 +1694,7 @@ void dasd_int_handler(struct ccw_device
 	struct dasd_device *device;
 	unsigned long now;
 	int nrf_suppressed = 0;
-	int fp_suppressed = 0;
+	int it_suppressed = 0;
 	struct request *req;
 	u8 *sense = NULL;
 	int expires;
@@ -1743,8 +1749,9 @@ void dasd_int_handler(struct ccw_device
 		 */
 		sense = dasd_get_sense(irb);
 		if (sense) {
-			fp_suppressed = (sense[1] & SNS1_FILE_PROTECTED) &&
-				test_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
+			it_suppressed =	(sense[1] & SNS1_INV_TRACK_FORMAT) &&
+				!(sense[2] & SNS2_ENV_DATA_PRESENT) &&
+				test_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags);
 			nrf_suppressed = (sense[1] & SNS1_NO_REC_FOUND) &&
 				test_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
 
@@ -1759,7 +1766,7 @@ void dasd_int_handler(struct ccw_device
 				return;
 			}
 		}
-		if (!(fp_suppressed || nrf_suppressed))
+		if (!(it_suppressed || nrf_suppressed))
 			device->discipline->dump_sense_dbf(device, irb, "int");
 
 		if (device->features & DASD_FEATURE_ERPLOG)
@@ -2513,14 +2520,17 @@ retry:
 	rc = 0;
 	list_for_each_entry_safe(cqr, n, ccw_queue, blocklist) {
 		/*
-		 * In some cases the 'File Protected' or 'Incorrect Length'
-		 * error might be expected and error recovery would be
-		 * unnecessary in these cases.	Check if the according suppress
-		 * bit is set.
+		 * In some cases certain errors might be expected and
+		 * error recovery would be unnecessary in these cases.
+		 * Check if the according suppress bit is set.
 		 */
 		sense = dasd_get_sense(&cqr->irb);
-		if (sense && sense[1] & SNS1_FILE_PROTECTED &&
-		    test_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags))
+		if (sense && (sense[1] & SNS1_INV_TRACK_FORMAT) &&
+		    !(sense[2] & SNS2_ENV_DATA_PRESENT) &&
+		    test_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags))
+			continue;
+		if (sense && (sense[1] & SNS1_NO_REC_FOUND) &&
+		    test_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags))
 			continue;
 		if (scsw_cstat(&cqr->irb.scsw) == 0x40 &&
 		    test_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags))
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -1401,14 +1401,8 @@ dasd_3990_erp_file_prot(struct dasd_ccw_
 
 	struct dasd_device *device = erp->startdev;
 
-	/*
-	 * In some cases the 'File Protected' error might be expected and
-	 * log messages shouldn't be written then.
-	 * Check if the according suppress bit is set.
-	 */
-	if (!test_bit(DASD_CQR_SUPPRESS_FP, &erp->flags))
-		dev_err(&device->cdev->dev,
-			"Accessing the DASD failed because of a hardware error\n");
+	dev_err(&device->cdev->dev,
+		"Accessing the DASD failed because of a hardware error\n");
 
 	return dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
 
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -2201,6 +2201,7 @@ dasd_eckd_analysis_ccw(struct dasd_devic
 	cqr->status = DASD_CQR_FILLED;
 	/* Set flags to suppress output for expected errors */
 	set_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
+	set_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags);
 
 	return cqr;
 }
@@ -2482,7 +2483,6 @@ dasd_eckd_build_check_tcw(struct dasd_de
 	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	/* Set flags to suppress output for expected errors */
-	set_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
 	set_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags);
 
 	return cqr;
@@ -4031,8 +4031,6 @@ static struct dasd_ccw_req *dasd_eckd_bu
 
 	/* Set flags to suppress output for expected errors */
 	if (dasd_eckd_is_ese(basedev)) {
-		set_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
-		set_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags);
 		set_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
 	}
 
@@ -4534,9 +4532,8 @@ static struct dasd_ccw_req *dasd_eckd_bu
 
 	/* Set flags to suppress output for expected errors */
 	if (dasd_eckd_is_ese(basedev)) {
-		set_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
-		set_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags);
 		set_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
+		set_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags);
 	}
 
 	return cqr;
@@ -5706,36 +5703,32 @@ static void dasd_eckd_dump_sense(struct
 {
 	u8 *sense = dasd_get_sense(irb);
 
-	if (scsw_is_tm(&irb->scsw)) {
-		/*
-		 * In some cases the 'File Protected' or 'Incorrect Length'
-		 * error might be expected and log messages shouldn't be written
-		 * then. Check if the according suppress bit is set.
-		 */
-		if (sense && (sense[1] & SNS1_FILE_PROTECTED) &&
-		    test_bit(DASD_CQR_SUPPRESS_FP, &req->flags))
-			return;
-		if (scsw_cstat(&irb->scsw) == 0x40 &&
-		    test_bit(DASD_CQR_SUPPRESS_IL, &req->flags))
-			return;
+	/*
+	 * In some cases certain errors might be expected and
+	 * log messages shouldn't be written then.
+	 * Check if the according suppress bit is set.
+	 */
+	if (sense && (sense[1] & SNS1_INV_TRACK_FORMAT) &&
+	    !(sense[2] & SNS2_ENV_DATA_PRESENT) &&
+	    test_bit(DASD_CQR_SUPPRESS_IT, &req->flags))
+		return;
 
-		dasd_eckd_dump_sense_tcw(device, req, irb);
-	} else {
-		/*
-		 * In some cases the 'Command Reject' or 'No Record Found'
-		 * error might be expected and log messages shouldn't be
-		 * written then. Check if the according suppress bit is set.
-		 */
-		if (sense && sense[0] & SNS0_CMD_REJECT &&
-		    test_bit(DASD_CQR_SUPPRESS_CR, &req->flags))
-			return;
+	if (sense && sense[0] & SNS0_CMD_REJECT &&
+	    test_bit(DASD_CQR_SUPPRESS_CR, &req->flags))
+		return;
 
-		if (sense && sense[1] & SNS1_NO_REC_FOUND &&
-		    test_bit(DASD_CQR_SUPPRESS_NRF, &req->flags))
-			return;
+	if (sense && sense[1] & SNS1_NO_REC_FOUND &&
+	    test_bit(DASD_CQR_SUPPRESS_NRF, &req->flags))
+		return;
 
+	if (scsw_cstat(&irb->scsw) == 0x40 &&
+	    test_bit(DASD_CQR_SUPPRESS_IL, &req->flags))
+		return;
+
+	if (scsw_is_tm(&irb->scsw))
+		dasd_eckd_dump_sense_tcw(device, req, irb);
+	else
 		dasd_eckd_dump_sense_ccw(device, req, irb);
-	}
 }
 
 static int dasd_eckd_pm_freeze(struct dasd_device *device)
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -226,7 +226,7 @@ struct dasd_ccw_req {
  * The following flags are used to suppress output of certain errors.
  */
 #define DASD_CQR_SUPPRESS_NRF	4	/* Suppress 'No Record Found' error */
-#define DASD_CQR_SUPPRESS_FP	5	/* Suppress 'File Protected' error*/
+#define DASD_CQR_SUPPRESS_IT	5	/* Suppress 'Invalid Track' error*/
 #define DASD_CQR_SUPPRESS_IL	6	/* Suppress 'Incorrect Length' error */
 #define DASD_CQR_SUPPRESS_CR	7	/* Suppress 'Command Reject' error */
 

[PATCH 5.10 006/151] arm64: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Haibo Xu <haibo1.xu@intel.com>

commit a21dcf0ea8566ebbe011c79d6ed08cdfea771de3 upstream.

Currently, only acpi_early_node_map[0] was initialized to NUMA_NO_NODE.
To ensure all the values were properly initialized, switch to initialize
all of them to NUMA_NO_NODE.

Fixes: e18962491696 ("arm64: numa: rework ACPI NUMA initialization")
Cc: <stable@vger.kernel.org> # 4.19.x
Reported-by: Andrew Jones <ajones@ventanamicro.com>
Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Haibo Xu <haibo1.xu@intel.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/853d7f74aa243f6f5999e203246f0d1ae92d2b61.1722828421.git.haibo1.xu@intel.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/acpi_numa.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/kernel/acpi_numa.c
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -27,7 +27,7 @@
 
 #include <asm/numa.h>
 
-static int acpi_early_node_map[NR_CPUS] __initdata = { NUMA_NO_NODE };
+static int acpi_early_node_map[NR_CPUS] __initdata = { [0 ... NR_CPUS - 1] = NUMA_NO_NODE };
 
 int __init acpi_numa_get_nid(unsigned int cpu)
 {

[PATCH 5.10 007/151] dm resume: dont return EINVAL when signalled

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Khazhismel Kumykov <khazhy@google.com>

commit 7a636b4f03af9d541205f69e373672e7b2b60a8a upstream.

If the dm_resume method is called on a device that is not suspended, the
method will suspend the device briefly, before resuming it (so that the
table will be swapped).

However, there was a bug that the return value of dm_suspended_md was not
checked. dm_suspended_md may return an error when it is interrupted by a
signal. In this case, do_resume would call dm_swap_table, which would
return -EINVAL.

This commit fixes the logic, so that error returned by dm_suspend is
checked and the resume operation is undone.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/dm-ioctl.c |   22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1064,8 +1064,26 @@ static int do_resume(struct dm_ioctl *pa
 			suspend_flags &= ~DM_SUSPEND_LOCKFS_FLAG;
 		if (param->flags & DM_NOFLUSH_FLAG)
 			suspend_flags |= DM_SUSPEND_NOFLUSH_FLAG;
-		if (!dm_suspended_md(md))
-			dm_suspend(md, suspend_flags);
+		if (!dm_suspended_md(md)) {
+			r = dm_suspend(md, suspend_flags);
+			if (r) {
+				down_write(&_hash_lock);
+				hc = dm_get_mdptr(md);
+				if (hc && !hc->new_map) {
+					hc->new_map = new_map;
+					new_map = NULL;
+				} else {
+					r = -ENXIO;
+				}
+				up_write(&_hash_lock);
+				if (new_map) {
+					dm_sync_table(md);
+					dm_table_destroy(new_map);
+				}
+				dm_put(md);
+				return r;
+			}
+		}
 
 		old_map = dm_swap_table(md, new_map);
 		if (IS_ERR(old_map)) {

[PATCH 5.10 008/151] dm persistent data: fix memory allocation failure

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mikulas Patocka <mpatocka@redhat.com>

commit faada2174c08662ae98b439c69efe3e79382c538 upstream.

kmalloc is unreliable when allocating more than 8 pages of memory. It may
fail when there is plenty of free memory but the memory is fragmented.
Zdenek Kabelac observed such failure in his tests.

This commit changes kmalloc to kvmalloc - kvmalloc will fall back to
vmalloc if the large allocation fails.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/persistent-data/dm-space-map-metadata.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -275,7 +275,7 @@ static void sm_metadata_destroy(struct d
 {
 	struct sm_metadata *smm = container_of(sm, struct sm_metadata, sm);
 
-	kfree(smm);
+	kvfree(smm);
 }
 
 static int sm_metadata_get_nr_blocks(struct dm_space_map *sm, dm_block_t *count)
@@ -759,7 +759,7 @@ struct dm_space_map *dm_sm_metadata_init
 {
 	struct sm_metadata *smm;
 
-	smm = kmalloc(sizeof(*smm), GFP_KERNEL);
+	smm = kvmalloc(sizeof(*smm), GFP_KERNEL);
 	if (!smm)
 		return ERR_PTR(-ENOMEM);
 

[PATCH 5.10 009/151] vfs: Dont evict inode under the inode lru traversing context

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhihao Cheng <chengzhihao1@huawei.com>

commit 2a0629834cd82f05d424bbc193374f9a43d1f87d upstream.

The inode reclaiming process(See function prune_icache_sb) collects all
reclaimable inodes and mark them with I_FREEING flag at first, at that
time, other processes will be stuck if they try getting these inodes
(See function find_inode_fast), then the reclaiming process destroy the
inodes by function dispose_list(). Some filesystems(eg. ext4 with
ea_inode feature, ubifs with xattr) may do inode lookup in the inode
evicting callback function, if the inode lookup is operated under the
inode lru traversing context, deadlock problems may happen.

Case 1: In function ext4_evict_inode(), the ea inode lookup could happen
        if ea_inode feature is enabled, the lookup process will be stuck
	under the evicting context like this:

 1. File A has inode i_reg and an ea inode i_ea
 2. getfattr(A, xattr_buf) // i_ea is added into lru // lru->i_ea
 3. Then, following three processes running like this:

    PA                              PB
 echo 2 > /proc/sys/vm/drop_caches
  shrink_slab
   prune_dcache_sb
   // i_reg is added into lru, lru->i_ea->i_reg
   prune_icache_sb
    list_lru_walk_one
     inode_lru_isolate
      i_ea->i_state |= I_FREEING // set inode state
     inode_lru_isolate
      __iget(i_reg)
      spin_unlock(&i_reg->i_lock)
      spin_unlock(lru_lock)
                                     rm file A
                                      i_reg->nlink = 0
      iput(i_reg) // i_reg->nlink is 0, do evict
       ext4_evict_inode
        ext4_xattr_delete_inode
         ext4_xattr_inode_dec_ref_all
          ext4_xattr_inode_iget
           ext4_iget(i_ea->i_ino)
            iget_locked
             find_inode_fast
              __wait_on_freeing_inode(i_ea) ----→ AA deadlock
    dispose_list // cannot be executed by prune_icache_sb
     wake_up_bit(&i_ea->i_state)

Case 2: In deleted inode writing function ubifs_jnl_write_inode(), file
        deleting process holds BASEHD's wbuf->io_mutex while getting the
	xattr inode, which could race with inode reclaiming process(The
        reclaiming process could try locking BASEHD's wbuf->io_mutex in
	inode evicting function), then an ABBA deadlock problem would
	happen as following:

 1. File A has inode ia and a xattr(with inode ixa), regular file B has
    inode ib and a xattr.
 2. getfattr(A, xattr_buf) // ixa is added into lru // lru->ixa
 3. Then, following three processes running like this:

        PA                PB                        PC
                echo 2 > /proc/sys/vm/drop_caches
                 shrink_slab
                  prune_dcache_sb
                  // ib and ia are added into lru, lru->ixa->ib->ia
                  prune_icache_sb
                   list_lru_walk_one
                    inode_lru_isolate
                     ixa->i_state |= I_FREEING // set inode state
                    inode_lru_isolate
                     __iget(ib)
                     spin_unlock(&ib->i_lock)
                     spin_unlock(lru_lock)
                                                   rm file B
                                                    ib->nlink = 0
 rm file A
  iput(ia)
   ubifs_evict_inode(ia)
    ubifs_jnl_delete_inode(ia)
     ubifs_jnl_write_inode(ia)
      make_reservation(BASEHD) // Lock wbuf->io_mutex
      ubifs_iget(ixa->i_ino)
       iget_locked
        find_inode_fast
         __wait_on_freeing_inode(ixa)
          |          iput(ib) // ib->nlink is 0, do evict
          |           ubifs_evict_inode
          |            ubifs_jnl_delete_inode(ib)
          ↓             ubifs_jnl_write_inode
     ABBA deadlock ←-----make_reservation(BASEHD)
                   dispose_list // cannot be executed by prune_icache_sb
                    wake_up_bit(&ixa->i_state)

Fix the possible deadlock by using new inode state flag I_LRU_ISOLATING
to pin the inode in memory while inode_lru_isolate() reclaims its pages
instead of using ordinary inode reference. This way inode deletion
cannot be triggered from inode_lru_isolate() thus avoiding the deadlock.
evict() is made to wait for I_LRU_ISOLATING to be cleared before
proceeding with inode cleanup.

Link: https://lore.kernel.org/all/37c29c42-7685-d1f0-067d-63582ffac405@huaweicloud.com/
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219022
Fixes: e50e5129f384 ("ext4: xattr-in-inode support")
Fixes: 7959cf3a7506 ("ubifs: journal: Handle xattrs like files")
Cc: stable@vger.kernel.org
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Link: https://lore.kernel.org/r/20240809031628.1069873-1-chengzhihao@huaweicloud.com
Reviewed-by: Jan Kara <jack@suse.cz>
Suggested-by: Jan Kara <jack@suse.cz>
Suggested-by: Mateusz Guzik <mjguzik@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/inode.c         |   39 +++++++++++++++++++++++++++++++++++++--
 include/linux/fs.h |    5 +++++
 2 files changed, 42 insertions(+), 2 deletions(-)

--- a/fs/inode.c
+++ b/fs/inode.c
@@ -453,6 +453,39 @@ static void inode_lru_list_del(struct in
 		this_cpu_dec(nr_unused);
 }
 
+static void inode_pin_lru_isolating(struct inode *inode)
+{
+	lockdep_assert_held(&inode->i_lock);
+	WARN_ON(inode->i_state & (I_LRU_ISOLATING | I_FREEING | I_WILL_FREE));
+	inode->i_state |= I_LRU_ISOLATING;
+}
+
+static void inode_unpin_lru_isolating(struct inode *inode)
+{
+	spin_lock(&inode->i_lock);
+	WARN_ON(!(inode->i_state & I_LRU_ISOLATING));
+	inode->i_state &= ~I_LRU_ISOLATING;
+	smp_mb();
+	wake_up_bit(&inode->i_state, __I_LRU_ISOLATING);
+	spin_unlock(&inode->i_lock);
+}
+
+static void inode_wait_for_lru_isolating(struct inode *inode)
+{
+	spin_lock(&inode->i_lock);
+	if (inode->i_state & I_LRU_ISOLATING) {
+		DEFINE_WAIT_BIT(wq, &inode->i_state, __I_LRU_ISOLATING);
+		wait_queue_head_t *wqh;
+
+		wqh = bit_waitqueue(&inode->i_state, __I_LRU_ISOLATING);
+		spin_unlock(&inode->i_lock);
+		__wait_on_bit(wqh, &wq, bit_wait, TASK_UNINTERRUPTIBLE);
+		spin_lock(&inode->i_lock);
+		WARN_ON(inode->i_state & I_LRU_ISOLATING);
+	}
+	spin_unlock(&inode->i_lock);
+}
+
 /**
  * inode_sb_list_add - add inode to the superblock list of inodes
  * @inode: inode to add
@@ -565,6 +598,8 @@ static void evict(struct inode *inode)
 
 	inode_sb_list_del(inode);
 
+	inode_wait_for_lru_isolating(inode);
+
 	/*
 	 * Wait for flusher thread to be done with the inode so that filesystem
 	 * does not start destroying it while writeback is still running. Since
@@ -764,7 +799,7 @@ static enum lru_status inode_lru_isolate
 	}
 
 	if (inode_has_buffers(inode) || inode->i_data.nrpages) {
-		__iget(inode);
+		inode_pin_lru_isolating(inode);
 		spin_unlock(&inode->i_lock);
 		spin_unlock(lru_lock);
 		if (remove_inode_buffers(inode)) {
@@ -777,7 +812,7 @@ static enum lru_status inode_lru_isolate
 			if (current->reclaim_state)
 				current->reclaim_state->reclaimed_slab += reap;
 		}
-		iput(inode);
+		inode_unpin_lru_isolating(inode);
 		spin_lock(lru_lock);
 		return LRU_RETRY;
 	}
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2249,6 +2249,9 @@ static inline void kiocb_clone(struct ki
  *			Used to detect that mark_inode_dirty() should not move
  * 			inode between dirty lists.
  *
+ * I_LRU_ISOLATING	Inode is pinned being isolated from LRU without holding
+ *			i_count.
+ *
  * Q: What is the difference between I_WILL_FREE and I_FREEING?
  */
 #define I_DIRTY_SYNC		(1 << 0)
@@ -2271,6 +2274,8 @@ static inline void kiocb_clone(struct ki
 #define I_CREATING		(1 << 15)
 #define I_DONTCACHE		(1 << 16)
 #define I_SYNC_QUEUED		(1 << 17)
+#define __I_LRU_ISOLATING	19
+#define I_LRU_ISOLATING		(1 << __I_LRU_ISOLATING)
 
 #define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
 #define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)

[PATCH 5.10 010/151] bitmap: introduce generic optimized bitmap_size()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Lobakin <aleksander.lobakin@intel.com>

commit a37fbe666c016fd89e4460d0ebfcea05baba46dc upstream.

The number of times yet another open coded
`BITS_TO_LONGS(nbits) * sizeof(long)` can be spotted is huge.
Some generic helper is long overdue.

Add one, bitmap_size(), but with one detail.
BITS_TO_LONGS() uses DIV_ROUND_UP(). The latter works well when both
divident and divisor are compile-time constants or when the divisor
is not a pow-of-2. When it is however, the compilers sometimes tend
to generate suboptimal code (GCC 13):

48 83 c0 3f          	add    $0x3f,%rax
48 c1 e8 06          	shr    $0x6,%rax
48 8d 14 c5 00 00 00 00	lea    0x0(,%rax,8),%rdx

%BITS_PER_LONG is always a pow-2 (either 32 or 64), but GCC still does
full division of `nbits + 63` by it and then multiplication by 8.
Instead of BITS_TO_LONGS(), use ALIGN() and then divide by 8. GCC:

8d 50 3f             	lea    0x3f(%rax),%edx
c1 ea 03             	shr    $0x3,%edx
81 e2 f8 ff ff 1f    	and    $0x1ffffff8,%edx

Now it shifts `nbits + 63` by 3 positions (IOW performs fast division
by 8) and then masks bits[2:0]. bloat-o-meter:

add/remove: 0/0 grow/shrink: 20/133 up/down: 156/-773 (-617)

Clang does it better and generates the same code before/after starting
from -O1, except that with the ALIGN() approach it uses %edx and thus
still saves some bytes:

add/remove: 0/0 grow/shrink: 9/133 up/down: 18/-538 (-520)

Note that we can't expand DIV_ROUND_UP() by adding a check and using
this approach there, as it's used in array declarations where
expressions are not allowed.
Add this helper to tools/ as well.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Acked-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/dm-clone-metadata.c |    5 -----
 drivers/s390/cio/idset.c       |    2 +-
 include/linux/bitmap.h         |    8 +++++---
 include/linux/cpumask.h        |    2 +-
 lib/math/prime_numbers.c       |    2 --
 tools/include/linux/bitmap.h   |    7 ++++---
 6 files changed, 11 insertions(+), 15 deletions(-)

--- a/drivers/md/dm-clone-metadata.c
+++ b/drivers/md/dm-clone-metadata.c
@@ -471,11 +471,6 @@ static void __destroy_persistent_data_st
 
 /*---------------------------------------------------------------------------*/
 
-static size_t bitmap_size(unsigned long nr_bits)
-{
-	return BITS_TO_LONGS(nr_bits) * sizeof(long);
-}
-
 static int __dirty_map_init(struct dirty_map *dmap, unsigned long nr_words,
 			    unsigned long nr_regions)
 {
--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -18,7 +18,7 @@ struct idset {
 
 static inline unsigned long bitmap_size(int num_ssid, int num_id)
 {
-	return BITS_TO_LONGS(num_ssid * num_id) * sizeof(unsigned long);
+	return bitmap_size(size_mul(num_ssid, num_id));
 }
 
 static struct idset *idset_new(int num_ssid, int num_id)
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -240,22 +240,24 @@ extern int bitmap_print_to_pagebuf(bool
 #define small_const_nbits(nbits) \
 	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0)
 
+#define bitmap_size(nbits)	(ALIGN(nbits, BITS_PER_LONG) / BITS_PER_BYTE)
+
 static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)
 {
-	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+	unsigned int len = bitmap_size(nbits);
 	memset(dst, 0, len);
 }
 
 static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)
 {
-	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+	unsigned int len = bitmap_size(nbits);
 	memset(dst, 0xff, len);
 }
 
 static inline void bitmap_copy(unsigned long *dst, const unsigned long *src,
 			unsigned int nbits)
 {
-	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+	unsigned int len = bitmap_size(nbits);
 	memcpy(dst, src, len);
 }
 
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -690,7 +690,7 @@ static inline int cpulist_parse(const ch
  */
 static inline unsigned int cpumask_size(void)
 {
-	return BITS_TO_LONGS(nr_cpumask_bits) * sizeof(long);
+	return bitmap_size(nr_cpumask_bits);
 }
 
 /*
--- a/lib/math/prime_numbers.c
+++ b/lib/math/prime_numbers.c
@@ -6,8 +6,6 @@
 #include <linux/prime_numbers.h>
 #include <linux/slab.h>
 
-#define bitmap_size(nbits) (BITS_TO_LONGS(nbits) * sizeof(unsigned long))
-
 struct primes {
 	struct rcu_head rcu;
 	unsigned long last, sz;
--- a/tools/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -30,13 +30,14 @@ void bitmap_clear(unsigned long *map, un
 #define small_const_nbits(nbits) \
 	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
 
+#define bitmap_size(nbits)	(ALIGN(nbits, BITS_PER_LONG) / BITS_PER_BYTE)
+
 static inline void bitmap_zero(unsigned long *dst, int nbits)
 {
 	if (small_const_nbits(nbits))
 		*dst = 0UL;
 	else {
-		int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
-		memset(dst, 0, len);
+		memset(dst, 0, bitmap_size(nbits));
 	}
 }
 
@@ -122,7 +123,7 @@ static inline int test_and_clear_bit(int
  */
 static inline unsigned long *bitmap_alloc(int nbits)
 {
-	return calloc(1, BITS_TO_LONGS(nbits) * sizeof(unsigned long));
+	return calloc(1, bitmap_size(nbits));
 }
 
 /*

[PATCH 5.10 011/151] fix bitmap corruption on close_range() with CLOSE_RANGE_UNSHARE

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@zeniv.linux.org.uk>

commit 9a2fa1472083580b6c66bdaf291f591e1170123a upstream.

copy_fd_bitmaps(new, old, count) is expected to copy the first
count/BITS_PER_LONG bits from old->full_fds_bits[] and fill
the rest with zeroes.  What it does is copying enough words
(BITS_TO_LONGS(count/BITS_PER_LONG)), then memsets the rest.
That works fine, *if* all bits past the cutoff point are
clear.  Otherwise we are risking garbage from the last word
we'd copied.

For most of the callers that is true - expand_fdtable() has
count equal to old->max_fds, so there's no open descriptors
past count, let alone fully occupied words in ->open_fds[],
which is what bits in ->full_fds_bits[] correspond to.

The other caller (dup_fd()) passes sane_fdtable_size(old_fdt, max_fds),
which is the smallest multiple of BITS_PER_LONG that covers all
opened descriptors below max_fds.  In the common case (copying on
fork()) max_fds is ~0U, so all opened descriptors will be below
it and we are fine, by the same reasons why the call in expand_fdtable()
is safe.

Unfortunately, there is a case where max_fds is less than that
and where we might, indeed, end up with junk in ->full_fds_bits[] -
close_range(from, to, CLOSE_RANGE_UNSHARE) with
	* descriptor table being currently shared
	* 'to' being above the current capacity of descriptor table
	* 'from' being just under some chunk of opened descriptors.
In that case we end up with observably wrong behaviour - e.g. spawn
a child with CLONE_FILES, get all descriptors in range 0..127 open,
then close_range(64, ~0U, CLOSE_RANGE_UNSHARE) and watch dup(0) ending
up with descriptor #128, despite #64 being observably not open.

The minimally invasive fix would be to deal with that in dup_fd().
If this proves to add measurable overhead, we can go that way, but
let's try to fix copy_fd_bitmaps() first.

* new helper: bitmap_copy_and_expand(to, from, bits_to_copy, size).
* make copy_fd_bitmaps() take the bitmap size in words, rather than
bits; it's 'count' argument is always a multiple of BITS_PER_LONG,
so we are not losing any information, and that way we can use the
same helper for all three bitmaps - compiler will see that count
is a multiple of BITS_PER_LONG for the large ones, so it'll generate
plain memcpy()+memset().

Reproducer added to tools/testing/selftests/core/close_range_test.c

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/file.c                                       |   28 ++++++++-----------
 include/linux/bitmap.h                          |   12 ++++++++
 tools/testing/selftests/core/close_range_test.c |   35 ++++++++++++++++++++++++
 3 files changed, 59 insertions(+), 16 deletions(-)

--- a/fs/file.c
+++ b/fs/file.c
@@ -46,27 +46,23 @@ static void free_fdtable_rcu(struct rcu_
 #define BITBIT_NR(nr)	BITS_TO_LONGS(BITS_TO_LONGS(nr))
 #define BITBIT_SIZE(nr)	(BITBIT_NR(nr) * sizeof(long))
 
+#define fdt_words(fdt) ((fdt)->max_fds / BITS_PER_LONG) // words in ->open_fds
 /*
  * Copy 'count' fd bits from the old table to the new table and clear the extra
  * space if any.  This does not copy the file pointers.  Called with the files
  * spinlock held for write.
  */
-static void copy_fd_bitmaps(struct fdtable *nfdt, struct fdtable *ofdt,
-			    unsigned int count)
+static inline void copy_fd_bitmaps(struct fdtable *nfdt, struct fdtable *ofdt,
+			    unsigned int copy_words)
 {
-	unsigned int cpy, set;
+	unsigned int nwords = fdt_words(nfdt);
 
-	cpy = count / BITS_PER_BYTE;
-	set = (nfdt->max_fds - count) / BITS_PER_BYTE;
-	memcpy(nfdt->open_fds, ofdt->open_fds, cpy);
-	memset((char *)nfdt->open_fds + cpy, 0, set);
-	memcpy(nfdt->close_on_exec, ofdt->close_on_exec, cpy);
-	memset((char *)nfdt->close_on_exec + cpy, 0, set);
-
-	cpy = BITBIT_SIZE(count);
-	set = BITBIT_SIZE(nfdt->max_fds) - cpy;
-	memcpy(nfdt->full_fds_bits, ofdt->full_fds_bits, cpy);
-	memset((char *)nfdt->full_fds_bits + cpy, 0, set);
+	bitmap_copy_and_extend(nfdt->open_fds, ofdt->open_fds,
+			copy_words * BITS_PER_LONG, nwords * BITS_PER_LONG);
+	bitmap_copy_and_extend(nfdt->close_on_exec, ofdt->close_on_exec,
+			copy_words * BITS_PER_LONG, nwords * BITS_PER_LONG);
+	bitmap_copy_and_extend(nfdt->full_fds_bits, ofdt->full_fds_bits,
+			copy_words, nwords);
 }
 
 /*
@@ -84,7 +80,7 @@ static void copy_fdtable(struct fdtable
 	memcpy(nfdt->fd, ofdt->fd, cpy);
 	memset((char *)nfdt->fd + cpy, 0, set);
 
-	copy_fd_bitmaps(nfdt, ofdt, ofdt->max_fds);
+	copy_fd_bitmaps(nfdt, ofdt, fdt_words(ofdt));
 }
 
 /*
@@ -374,7 +370,7 @@ struct files_struct *dup_fd(struct files
 		open_files = sane_fdtable_size(old_fdt, max_fds);
 	}
 
-	copy_fd_bitmaps(new_fdt, old_fdt, open_files);
+	copy_fd_bitmaps(new_fdt, old_fdt, open_files / BITS_PER_LONG);
 
 	old_fds = old_fdt->fd;
 	new_fds = new_fdt->fd;
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -272,6 +272,18 @@ static inline void bitmap_copy_clear_tai
 		dst[nbits / BITS_PER_LONG] &= BITMAP_LAST_WORD_MASK(nbits);
 }
 
+static inline void bitmap_copy_and_extend(unsigned long *to,
+					  const unsigned long *from,
+					  unsigned int count, unsigned int size)
+{
+	unsigned int copy = BITS_TO_LONGS(count);
+
+	memcpy(to, from, copy * sizeof(long));
+	if (count % BITS_PER_LONG)
+		to[copy - 1] &= BITMAP_LAST_WORD_MASK(count);
+	memset(to + copy, 0, bitmap_size(size) - copy * sizeof(long));
+}
+
 /*
  * On 32-bit systems bitmaps are represented as u32 arrays internally, and
  * therefore conversion is not needed when copying data from/to arrays of u32.
--- a/tools/testing/selftests/core/close_range_test.c
+++ b/tools/testing/selftests/core/close_range_test.c
@@ -224,4 +224,39 @@ TEST(close_range_unshare_capped)
 	EXPECT_EQ(0, WEXITSTATUS(status));
 }
 
+TEST(close_range_bitmap_corruption)
+{
+	pid_t pid;
+	int status;
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	/* get the first 128 descriptors open */
+	for (int i = 2; i < 128; i++)
+		EXPECT_GE(dup2(0, i), 0);
+
+	/* get descriptor table shared */
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* unshare and truncate descriptor table down to 64 */
+		if (sys_close_range(64, ~0U, CLOSE_RANGE_UNSHARE))
+			exit(EXIT_FAILURE);
+
+		ASSERT_EQ(fcntl(64, F_GETFD), -1);
+		/* ... and verify that the range 64..127 is not
+		   stuck "fully used" according to secondary bitmap */
+		EXPECT_EQ(dup(0), 64)
+			exit(EXIT_FAILURE);
+		exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
 TEST_HARNESS_MAIN

[PATCH 5.10 012/151] selinux: fix potential counting error in avc_add_xperms_decision()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhen Lei <thunder.leizhen@huawei.com>

commit 379d9af3f3da2da1bbfa67baf1820c72a080d1f1 upstream.

The count increases only when a node is successfully added to
the linked list.

Cc: stable@vger.kernel.org
Fixes: fa1aa143ac4a ("selinux: extended permissions for ioctls")
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/selinux/avc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -332,12 +332,12 @@ static int avc_add_xperms_decision(struc
 {
 	struct avc_xperms_decision_node *dest_xpd;
 
-	node->ae.xp_node->xp.len++;
 	dest_xpd = avc_xperms_decision_alloc(src->used);
 	if (!dest_xpd)
 		return -ENOMEM;
 	avc_copy_xperms_decision(&dest_xpd->xpd, src);
 	list_add(&dest_xpd->xpd_list, &node->ae.xp_node->xpd_head);
+	node->ae.xp_node->xp.len++;
 	return 0;
 }
 

[PATCH 5.10 013/151] btrfs: tree-checker: add dev extent item checks

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Qu Wenruo <wqu@suse.com>

commit 008e2512dc5696ab2dc5bf264e98a9fe9ceb830e upstream.

[REPORT]
There is a corruption report that btrfs refused to mount a fs that has
overlapping dev extents:

  BTRFS error (device sdc): dev extent devid 4 physical offset 14263979671552 overlap with previous dev extent end 14263980982272
  BTRFS error (device sdc): failed to verify dev extents against chunks: -117
  BTRFS error (device sdc): open_ctree failed

[CAUSE]
The direct cause is very obvious, there is a bad dev extent item with
incorrect length.

With btrfs check reporting two overlapping extents, the second one shows
some clue on the cause:

  ERROR: dev extent devid 4 offset 14263979671552 len 6488064 overlap with previous dev extent end 14263980982272
  ERROR: dev extent devid 13 offset 2257707008000 len 6488064 overlap with previous dev extent end 2257707270144
  ERROR: errors found in extent allocation tree or chunk allocation

The second one looks like a bitflip happened during new chunk
allocation:
hex(2257707008000) = 0x20da9d30000
hex(2257707270144) = 0x20da9d70000
diff               = 0x00000040000

So it looks like a bitflip happened during new dev extent allocation,
resulting the second overlap.

Currently we only do the dev-extent verification at mount time, but if the
corruption is caused by memory bitflip, we really want to catch it before
writing the corruption to the storage.

Furthermore the dev extent items has the following key definition:

	(<device id> DEV_EXTENT <physical offset>)

Thus we can not just rely on the generic key order check to make sure
there is no overlapping.

[ENHANCEMENT]
Introduce dedicated dev extent checks, including:

- Fixed member checks
  * chunk_tree should always be BTRFS_CHUNK_TREE_OBJECTID (3)
  * chunk_objectid should always be
    BTRFS_FIRST_CHUNK_CHUNK_TREE_OBJECTID (256)

- Alignment checks
  * chunk_offset should be aligned to sectorsize
  * length should be aligned to sectorsize
  * key.offset should be aligned to sectorsize

- Overlap checks
  If the previous key is also a dev-extent item, with the same
  device id, make sure we do not overlap with the previous dev extent.

Reported: Stefan N <stefannnau@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CA+W5K0rSO3koYTo=nzxxTm1-Pdu1HYgVxEpgJ=aGc7d=E8mGEg@mail.gmail.com/
CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-checker.c |   69 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -1546,6 +1546,72 @@ static int check_inode_ref(struct extent
 	return 0;
 }
 
+static int check_dev_extent_item(const struct extent_buffer *leaf,
+				 const struct btrfs_key *key,
+				 int slot,
+				 struct btrfs_key *prev_key)
+{
+	struct btrfs_dev_extent *de;
+	const u32 sectorsize = leaf->fs_info->sectorsize;
+
+	de = btrfs_item_ptr(leaf, slot, struct btrfs_dev_extent);
+	/* Basic fixed member checks. */
+	if (unlikely(btrfs_dev_extent_chunk_tree(leaf, de) !=
+		     BTRFS_CHUNK_TREE_OBJECTID)) {
+		generic_err(leaf, slot,
+			    "invalid dev extent chunk tree id, has %llu expect %llu",
+			    btrfs_dev_extent_chunk_tree(leaf, de),
+			    BTRFS_CHUNK_TREE_OBJECTID);
+		return -EUCLEAN;
+	}
+	if (unlikely(btrfs_dev_extent_chunk_objectid(leaf, de) !=
+		     BTRFS_FIRST_CHUNK_TREE_OBJECTID)) {
+		generic_err(leaf, slot,
+			    "invalid dev extent chunk objectid, has %llu expect %llu",
+			    btrfs_dev_extent_chunk_objectid(leaf, de),
+			    BTRFS_FIRST_CHUNK_TREE_OBJECTID);
+		return -EUCLEAN;
+	}
+	/* Alignment check. */
+	if (unlikely(!IS_ALIGNED(key->offset, sectorsize))) {
+		generic_err(leaf, slot,
+			    "invalid dev extent key.offset, has %llu not aligned to %u",
+			    key->offset, sectorsize);
+		return -EUCLEAN;
+	}
+	if (unlikely(!IS_ALIGNED(btrfs_dev_extent_chunk_offset(leaf, de),
+				 sectorsize))) {
+		generic_err(leaf, slot,
+			    "invalid dev extent chunk offset, has %llu not aligned to %u",
+			    btrfs_dev_extent_chunk_objectid(leaf, de),
+			    sectorsize);
+		return -EUCLEAN;
+	}
+	if (unlikely(!IS_ALIGNED(btrfs_dev_extent_length(leaf, de),
+				 sectorsize))) {
+		generic_err(leaf, slot,
+			    "invalid dev extent length, has %llu not aligned to %u",
+			    btrfs_dev_extent_length(leaf, de), sectorsize);
+		return -EUCLEAN;
+	}
+	/* Overlap check with previous dev extent. */
+	if (slot && prev_key->objectid == key->objectid &&
+	    prev_key->type == key->type) {
+		struct btrfs_dev_extent *prev_de;
+		u64 prev_len;
+
+		prev_de = btrfs_item_ptr(leaf, slot - 1, struct btrfs_dev_extent);
+		prev_len = btrfs_dev_extent_length(leaf, prev_de);
+		if (unlikely(prev_key->offset + prev_len > key->offset)) {
+			generic_err(leaf, slot,
+		"dev extent overlap, prev offset %llu len %llu current offset %llu",
+				    prev_key->objectid, prev_len, key->offset);
+			return -EUCLEAN;
+		}
+	}
+	return 0;
+}
+
 /*
  * Common point to switch the item-specific validation.
  */
@@ -1581,6 +1647,9 @@ static int check_leaf_item(struct extent
 	case BTRFS_DEV_ITEM_KEY:
 		ret = check_dev_item(leaf, key, slot);
 		break;
+	case BTRFS_DEV_EXTENT_KEY:
+		ret = check_dev_extent_item(leaf, key, slot, prev_key);
+		break;
 	case BTRFS_INODE_ITEM_KEY:
 		ret = check_inode_item(leaf, key, slot);
 		break;

[PATCH 5.10 014/151] drm/amdgpu: Actually check flags for all context ops.

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

commit 0573a1e2ea7e35bff08944a40f1adf2bb35cea61 upstream.

Missing validation ...

Checked libdrm and it clears all the structs, so we should be
safe to just check everything.

Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit c6b86421f1f9ddf9d706f2453159813ee39d0cf9)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -386,16 +386,24 @@ int amdgpu_ctx_ioctl(struct drm_device *
 
 	switch (args->in.op) {
 	case AMDGPU_CTX_OP_ALLOC_CTX:
+		if (args->in.flags)
+			return -EINVAL;
 		r = amdgpu_ctx_alloc(adev, fpriv, filp, priority, &id);
 		args->out.alloc.ctx_id = id;
 		break;
 	case AMDGPU_CTX_OP_FREE_CTX:
+		if (args->in.flags)
+			return -EINVAL;
 		r = amdgpu_ctx_free(fpriv, id);
 		break;
 	case AMDGPU_CTX_OP_QUERY_STATE:
+		if (args->in.flags)
+			return -EINVAL;
 		r = amdgpu_ctx_query(adev, fpriv, id, &args->out);
 		break;
 	case AMDGPU_CTX_OP_QUERY_STATE2:
+		if (args->in.flags)
+			return -EINVAL;
 		r = amdgpu_ctx_query2(adev, fpriv, id, &args->out);
 		break;
 	default:

[PATCH 5.10 015/151] memcg_write_event_control(): fix a user-triggerable oops

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@zeniv.linux.org.uk>

commit 046667c4d3196938e992fba0dfcde570aa85cd0e upstream.

we are *not* guaranteed that anything past the terminating NUL
is mapped (let alone initialized with anything sane).

Fixes: 0dea116876ee ("cgroup: implement eventfd-based generic API for notifications")
Cc: stable@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/memcontrol.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4884,9 +4884,12 @@ static ssize_t memcg_write_event_control
 	buf = endp + 1;
 
 	cfd = simple_strtoul(buf, &endp, 10);
-	if ((*endp != ' ') && (*endp != '\0'))
+	if (*endp == '\0')
+		buf = endp;
+	else if (*endp == ' ')
+		buf = endp + 1;
+	else
 		return -EINVAL;
-	buf = endp + 1;
 
 	event = kzalloc(sizeof(*event), GFP_KERNEL);
 	if (!event)

[PATCH 5.10 016/151] drm/amdgpu/jpeg2: properly set atomics vmid field

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

commit e414a304f2c5368a84f03ad34d29b89f965a33c9 upstream.

This needs to be set as well if the IB uses atomics.

Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 35c628774e50b3784c59e8ca7973f03bcb067132)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
@@ -553,11 +553,11 @@ void jpeg_v2_0_dec_ring_emit_ib(struct a
 
 	amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_IB_VMID_INTERNAL_OFFSET,
 		0, 0, PACKETJ_TYPE0));
-	amdgpu_ring_write(ring, (vmid | (vmid << 4)));
+	amdgpu_ring_write(ring, (vmid | (vmid << 4) | (vmid << 8)));
 
 	amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JPEG_VMID_INTERNAL_OFFSET,
 		0, 0, PACKETJ_TYPE0));
-	amdgpu_ring_write(ring, (vmid | (vmid << 4)));
+	amdgpu_ring_write(ring, (vmid | (vmid << 4) | (vmid << 8)));
 
 	amdgpu_ring_write(ring,	PACKETJ(mmUVD_LMI_JRBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET,
 		0, 0, PACKETJ_TYPE0));

[PATCH 5.10 017/151] s390/cio: rename bitmap_size() -> idset_bitmap_size()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Lobakin <aleksander.lobakin@intel.com>

commit c1023f5634b9bfcbfff0dc200245309e3cde9b54 upstream.

bitmap_size() is a pretty generic name and one may want to use it for
a generic bitmap API function. At the same time, its logic is not
"generic", i.e. it's not just `nbits -> size of bitmap in bytes`
converter as it would be expected from its name.
Add the prefix 'idset_' used throughout the file where the function
resides.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/cio/idset.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -16,7 +16,7 @@ struct idset {
 	unsigned long bitmap[];
 };
 
-static inline unsigned long bitmap_size(int num_ssid, int num_id)
+static inline unsigned long idset_bitmap_size(int num_ssid, int num_id)
 {
 	return bitmap_size(size_mul(num_ssid, num_id));
 }
@@ -25,11 +25,12 @@ static struct idset *idset_new(int num_s
 {
 	struct idset *set;
 
-	set = vmalloc(sizeof(struct idset) + bitmap_size(num_ssid, num_id));
+	set = vmalloc(sizeof(struct idset) +
+		      idset_bitmap_size(num_ssid, num_id));
 	if (set) {
 		set->num_ssid = num_ssid;
 		set->num_id = num_id;
-		memset(set->bitmap, 0, bitmap_size(num_ssid, num_id));
+		memset(set->bitmap, 0, idset_bitmap_size(num_ssid, num_id));
 	}
 	return set;
 }
@@ -41,7 +42,8 @@ void idset_free(struct idset *set)
 
 void idset_fill(struct idset *set)
 {
-	memset(set->bitmap, 0xff, bitmap_size(set->num_ssid, set->num_id));
+	memset(set->bitmap, 0xff,
+	       idset_bitmap_size(set->num_ssid, set->num_id));
 }
 
 static inline void idset_add(struct idset *set, int ssid, int id)

[PATCH 5.10 018/151] btrfs: rename bitmap_set_bits() -> btrfs_bitmap_set_bits()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Lobakin <aleksander.lobakin@intel.com>

commit 4ca532d64648d4776d15512caed3efea05ca7195 upstream.

bitmap_set_bits() does not start with the FS' prefix and may collide
with a new generic helper one day. It operates with the FS-specific
types, so there's no change those two could do the same thing.
Just add the prefix to exclude such possible conflict.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Acked-by: David Sterba <dsterba@suse.com>
Reviewed-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/free-space-cache.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -1755,9 +1755,9 @@ static void bitmap_clear_bits(struct btr
 	ctl->free_space -= bytes;
 }
 
-static void bitmap_set_bits(struct btrfs_free_space_ctl *ctl,
-			    struct btrfs_free_space *info, u64 offset,
-			    u64 bytes)
+static void btrfs_bitmap_set_bits(struct btrfs_free_space_ctl *ctl,
+				  struct btrfs_free_space *info, u64 offset,
+				  u64 bytes)
 {
 	unsigned long start, count, end;
 	int extent_delta = 1;
@@ -2077,7 +2077,7 @@ static u64 add_bytes_to_bitmap(struct bt
 
 	bytes_to_set = min(end - offset, bytes);
 
-	bitmap_set_bits(ctl, info, offset, bytes_to_set);
+	btrfs_bitmap_set_bits(ctl, info, offset, bytes_to_set);
 
 	/*
 	 * We set some bytes, we have no idea what the max extent size is

[PATCH 5.10 019/151] s390/uv: Panic for set and remove shared access UVC errors

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Claudio Imbrenda <imbrenda@linux.ibm.com>

[ Upstream commit cff59d8631e1409ffdd22d9d717e15810181b32c ]

The return value uv_set_shared() and uv_remove_shared() (which are
wrappers around the share() function) is not always checked. The system
integrity of a protected guest depends on the Share and Unshare UVCs
being successful. This means that any caller that fails to check the
return value will compromise the security of the protected guest.

No code path that would lead to such violation of the security
guarantees is currently exercised, since all the areas that are shared
never get unshared during the lifetime of the system. This might
change and become an issue in the future.

The Share and Unshare UVCs can only fail in case of hypervisor
misbehaviour (either a bug or malicious behaviour). In such cases there
is no reasonable way forward, and the system needs to panic.

This patch replaces the return at the end of the share() function with
a panic, to guarantee system integrity.

Fixes: 5abb9351dfd9 ("s390/uv: introduce guest side ultravisor code")
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20240801112548.85303-1-imbrenda@linux.ibm.com
Message-ID: <20240801112548.85303-1-imbrenda@linux.ibm.com>
[frankja@linux.ibm.com: Fixed up patch subject]
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/include/asm/uv.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
index 12c5f006c1364..8fd441150a4e6 100644
--- a/arch/s390/include/asm/uv.h
+++ b/arch/s390/include/asm/uv.h
@@ -312,7 +312,10 @@ static inline int share(unsigned long addr, u16 cmd)
 
 	if (!uv_call(0, (u64)&uvcb))
 		return 0;
-	return -EINVAL;
+	pr_err("%s UVC failed (rc: 0x%x, rrc: 0x%x), possible hypervisor bug.\n",
+	       uvcb.header.cmd == UVC_CMD_SET_SHARED_ACCESS ? "Share" : "Unshare",
+	       uvcb.header.rc, uvcb.header.rrc);
+	panic("System security cannot be guaranteed unless the system panics now.\n");
 }
 
 /*
-- 
2.43.0

[PATCH 5.10 020/151] net/mlx5e: Correctly report errors for ethtool rx flows

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Cosmin Ratiu <cratiu@nvidia.com>

[ Upstream commit cbc796be1779c4dbc9a482c7233995e2a8b6bfb3 ]

Previously, an ethtool rx flow with no attrs would not be added to the
NIC as it has no rules to configure the hw with, but it would be
reported as successful to the caller (return code 0). This is confusing
for the user as ethtool then reports "Added rule $num", but no rule was
actually added.

This change corrects that by instead reporting these wrong rules as
-EINVAL.

Fixes: b29c61dac3a2 ("net/mlx5e: Ethtool steering flow validation refactoring")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20240808144107.2095424-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
index b416a8ee2eed2..26631bca5ab85 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
@@ -679,7 +679,7 @@ mlx5e_ethtool_flow_replace(struct mlx5e_priv *priv,
 	if (num_tuples <= 0) {
 		netdev_warn(priv->netdev, "%s: flow is not valid %d\n",
 			    __func__, num_tuples);
-		return num_tuples;
+		return num_tuples < 0 ? num_tuples : -EINVAL;
 	}
 
 	eth_ft = get_flow_table(priv, fs, num_tuples);
-- 
2.43.0

[PATCH 5.10 021/151] atm: idt77252: prevent use after free in dequeue_rx()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@linaro.org>

[ Upstream commit a9a18e8f770c9b0703dab93580d0b02e199a4c79 ]

We can't dereference "skb" after calling vcc->push() because the skb
is released.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/atm/idt77252.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index e616e33c8a209..25fd73fafb371 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -1118,8 +1118,8 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 	rpp->len += skb->len;
 
 	if (stat & SAR_RSQE_EPDU) {
+		unsigned int len, truesize;
 		unsigned char *l1l2;
-		unsigned int len;
 
 		l1l2 = (unsigned char *) ((unsigned long) skb->data + skb->len - 6);
 
@@ -1189,14 +1189,15 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
 		ATM_SKB(skb)->vcc = vcc;
 		__net_timestamp(skb);
 
+		truesize = skb->truesize;
 		vcc->push(vcc, skb);
 		atomic_inc(&vcc->stats->rx);
 
-		if (skb->truesize > SAR_FB_SIZE_3)
+		if (truesize > SAR_FB_SIZE_3)
 			add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
-		else if (skb->truesize > SAR_FB_SIZE_2)
+		else if (truesize > SAR_FB_SIZE_2)
 			add_rx_skb(card, 2, SAR_FB_SIZE_2, 1);
-		else if (skb->truesize > SAR_FB_SIZE_1)
+		else if (truesize > SAR_FB_SIZE_1)
 			add_rx_skb(card, 1, SAR_FB_SIZE_1, 1);
 		else
 			add_rx_skb(card, 0, SAR_FB_SIZE_0, 1);
-- 
2.43.0

[PATCH 5.10 022/151] net: axienet: Fix register defines comment description

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>

[ Upstream commit 9ff2f816e2aa65ca9a1cdf0954842f8173c0f48d ]

In axiethernet header fix register defines comment description to be
inline with IP documentation. It updates MAC configuration register,
MDIO configuration register and frame filter control description.

Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
index 7326ad4d5e1c7..c0c93d0e3c7f9 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
@@ -159,16 +159,16 @@
 #define XAE_RCW1_OFFSET		0x00000404 /* Rx Configuration Word 1 */
 #define XAE_TC_OFFSET		0x00000408 /* Tx Configuration */
 #define XAE_FCC_OFFSET		0x0000040C /* Flow Control Configuration */
-#define XAE_EMMC_OFFSET		0x00000410 /* EMAC mode configuration */
-#define XAE_PHYC_OFFSET		0x00000414 /* RGMII/SGMII configuration */
+#define XAE_EMMC_OFFSET		0x00000410 /* MAC speed configuration */
+#define XAE_PHYC_OFFSET		0x00000414 /* RX Max Frame Configuration */
 #define XAE_ID_OFFSET		0x000004F8 /* Identification register */
-#define XAE_MDIO_MC_OFFSET	0x00000500 /* MII Management Config */
-#define XAE_MDIO_MCR_OFFSET	0x00000504 /* MII Management Control */
-#define XAE_MDIO_MWD_OFFSET	0x00000508 /* MII Management Write Data */
-#define XAE_MDIO_MRD_OFFSET	0x0000050C /* MII Management Read Data */
+#define XAE_MDIO_MC_OFFSET	0x00000500 /* MDIO Setup */
+#define XAE_MDIO_MCR_OFFSET	0x00000504 /* MDIO Control */
+#define XAE_MDIO_MWD_OFFSET	0x00000508 /* MDIO Write Data */
+#define XAE_MDIO_MRD_OFFSET	0x0000050C /* MDIO Read Data */
 #define XAE_UAW0_OFFSET		0x00000700 /* Unicast address word 0 */
 #define XAE_UAW1_OFFSET		0x00000704 /* Unicast address word 1 */
-#define XAE_FMI_OFFSET		0x00000708 /* Filter Mask Index */
+#define XAE_FMI_OFFSET		0x00000708 /* Frame Filter Control */
 #define XAE_AF0_OFFSET		0x00000710 /* Address Filter 0 */
 #define XAE_AF1_OFFSET		0x00000714 /* Address Filter 1 */
 
@@ -307,7 +307,7 @@
  */
 #define XAE_UAW1_UNICASTADDR_MASK	0x0000FFFF
 
-/* Bit masks for Axi Ethernet FMI register */
+/* Bit masks for Axi Ethernet FMC register */
 #define XAE_FMI_PM_MASK			0x80000000 /* Promis. mode enable */
 #define XAE_FMI_IND_MASK		0x00000003 /* Index Mask */
 
-- 
2.43.0

[PATCH 5.10 023/151] net: dsa: vsc73xx: pass value in phy_write operation

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pawel Dembicki <paweldembicki@gmail.com>

[ Upstream commit 5b9eebc2c7a5f0cc7950d918c1e8a4ad4bed5010 ]

In the 'vsc73xx_phy_write' function, the register value is missing,
and the phy write operation always sends zeros.

This commit passes the value variable into the proper register.

Fixes: 05bd97fc559d ("net: dsa: Add Vitesse VSC73xx DSA router driver")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/vitesse-vsc73xx-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c
index 018988b95035e..55c1063327a8f 100644
--- a/drivers/net/dsa/vitesse-vsc73xx-core.c
+++ b/drivers/net/dsa/vitesse-vsc73xx-core.c
@@ -531,7 +531,7 @@ static int vsc73xx_phy_write(struct dsa_switch *ds, int phy, int regnum,
 		return 0;
 	}
 
-	cmd = (phy << 21) | (regnum << 16);
+	cmd = (phy << 21) | (regnum << 16) | val;
 	ret = vsc73xx_write(vsc, VSC73XX_BLOCK_MII, 0, 1, cmd);
 	if (ret)
 		return ret;
-- 
2.43.0

[PATCH 5.10 024/151] net: dsa: vsc73xx: use read_poll_timeout instead delay loop

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pawel Dembicki <paweldembicki@gmail.com>

[ Upstream commit eb7e33d01db3aec128590391b2397384bab406b6 ]

Switch the delay loop during the Arbiter empty check from
vsc73xx_adjust_link() to use read_poll_timeout(). Functionally,
one msleep() call is eliminated at the end of the loop in the timeout
case.

As Russell King suggested:

"This [change] avoids the issue that on the last iteration, the code reads
the register, tests it, finds the condition that's being waiting for is
false, _then_ waits and end up printing the error message - that last
wait is rather useless, and as the arbiter state isn't checked after
waiting, it could be that we had success during the last wait."

Suggested-by: Russell King <linux@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Link: https://lore.kernel.org/r/20240417205048.3542839-2-paweldembicki@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: fa63c6434b6f ("net: dsa: vsc73xx: check busy flag in MDIO operations")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/vitesse-vsc73xx-core.c | 30 ++++++++++++++------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c
index 55c1063327a8f..d050dfaf327cc 100644
--- a/drivers/net/dsa/vitesse-vsc73xx-core.c
+++ b/drivers/net/dsa/vitesse-vsc73xx-core.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/device.h>
+#include <linux/iopoll.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_mdio.h>
@@ -269,6 +270,9 @@
 #define IS_7398(a) ((a)->chipid == VSC73XX_CHIPID_ID_7398)
 #define IS_739X(a) (IS_7395(a) || IS_7398(a))
 
+#define VSC73XX_POLL_SLEEP_US		1000
+#define VSC73XX_POLL_TIMEOUT_US		10000
+
 struct vsc73xx_counter {
 	u8 counter;
 	const char *name;
@@ -780,7 +784,7 @@ static void vsc73xx_adjust_link(struct dsa_switch *ds, int port,
 	 * after a PHY or the CPU port comes up or down.
 	 */
 	if (!phydev->link) {
-		int maxloop = 10;
+		int ret, err;
 
 		dev_dbg(vsc->dev, "port %d: went down\n",
 			port);
@@ -795,19 +799,17 @@ static void vsc73xx_adjust_link(struct dsa_switch *ds, int port,
 				    VSC73XX_ARBDISC, BIT(port), BIT(port));
 
 		/* Wait until queue is empty */
-		vsc73xx_read(vsc, VSC73XX_BLOCK_ARBITER, 0,
-			     VSC73XX_ARBEMPTY, &val);
-		while (!(val & BIT(port))) {
-			msleep(1);
-			vsc73xx_read(vsc, VSC73XX_BLOCK_ARBITER, 0,
-				     VSC73XX_ARBEMPTY, &val);
-			if (--maxloop == 0) {
-				dev_err(vsc->dev,
-					"timeout waiting for block arbiter\n");
-				/* Continue anyway */
-				break;
-			}
-		}
+		ret = read_poll_timeout(vsc73xx_read, err,
+					err < 0 || (val & BIT(port)),
+					VSC73XX_POLL_SLEEP_US,
+					VSC73XX_POLL_TIMEOUT_US, false,
+					vsc, VSC73XX_BLOCK_ARBITER, 0,
+					VSC73XX_ARBEMPTY, &val);
+		if (ret)
+			dev_err(vsc->dev,
+				"timeout waiting for block arbiter\n");
+		else if (err < 0)
+			dev_err(vsc->dev, "error reading arbiter\n");
 
 		/* Put this port into reset */
 		vsc73xx_write(vsc, VSC73XX_BLOCK_MAC, port, VSC73XX_MAC_CFG,
-- 
2.43.0

[PATCH 5.10 025/151] net: dsa: vsc73xx: check busy flag in MDIO operations

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pawel Dembicki <paweldembicki@gmail.com>

[ Upstream commit fa63c6434b6f6aaf9d8d599dc899bc0a074cc0ad ]

The VSC73xx has a busy flag used during MDIO operations. It is raised
when MDIO read/write operations are in progress. Without it, PHYs are
misconfigured and bus operations do not work as expected.

Fixes: 05bd97fc559d ("net: dsa: Add Vitesse VSC73xx DSA router driver")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/vitesse-vsc73xx-core.c | 37 +++++++++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c
index d050dfaf327cc..8a21902212e04 100644
--- a/drivers/net/dsa/vitesse-vsc73xx-core.c
+++ b/drivers/net/dsa/vitesse-vsc73xx-core.c
@@ -39,6 +39,10 @@
 #define VSC73XX_BLOCK_ARBITER	0x5 /* Only subblock 0 */
 #define VSC73XX_BLOCK_SYSTEM	0x7 /* Only subblock 0 */
 
+/* MII Block subblock */
+#define VSC73XX_BLOCK_MII_INTERNAL	0x0 /* Internal MDIO subblock */
+#define VSC73XX_BLOCK_MII_EXTERNAL	0x1 /* External MDIO subblock */
+
 #define CPU_PORT	6 /* CPU port */
 
 /* MAC Block registers */
@@ -197,6 +201,8 @@
 #define VSC73XX_MII_CMD		0x1
 #define VSC73XX_MII_DATA	0x2
 
+#define VSC73XX_MII_STAT_BUSY	BIT(3)
+
 /* Arbiter block 5 registers */
 #define VSC73XX_ARBEMPTY		0x0c
 #define VSC73XX_ARBDISC			0x0e
@@ -271,6 +277,7 @@
 #define IS_739X(a) (IS_7395(a) || IS_7398(a))
 
 #define VSC73XX_POLL_SLEEP_US		1000
+#define VSC73XX_MDIO_POLL_SLEEP_US	5
 #define VSC73XX_POLL_TIMEOUT_US		10000
 
 struct vsc73xx_counter {
@@ -488,6 +495,22 @@ static int vsc73xx_detect(struct vsc73xx *vsc)
 	return 0;
 }
 
+static int vsc73xx_mdio_busy_check(struct vsc73xx *vsc)
+{
+	int ret, err;
+	u32 val;
+
+	ret = read_poll_timeout(vsc73xx_read, err,
+				err < 0 || !(val & VSC73XX_MII_STAT_BUSY),
+				VSC73XX_MDIO_POLL_SLEEP_US,
+				VSC73XX_POLL_TIMEOUT_US, false, vsc,
+				VSC73XX_BLOCK_MII, VSC73XX_BLOCK_MII_INTERNAL,
+				VSC73XX_MII_STAT, &val);
+	if (ret)
+		return ret;
+	return err;
+}
+
 static int vsc73xx_phy_read(struct dsa_switch *ds, int phy, int regnum)
 {
 	struct vsc73xx *vsc = ds->priv;
@@ -495,12 +518,20 @@ static int vsc73xx_phy_read(struct dsa_switch *ds, int phy, int regnum)
 	u32 val;
 	int ret;
 
+	ret = vsc73xx_mdio_busy_check(vsc);
+	if (ret)
+		return ret;
+
 	/* Setting bit 26 means "read" */
 	cmd = BIT(26) | (phy << 21) | (regnum << 16);
 	ret = vsc73xx_write(vsc, VSC73XX_BLOCK_MII, 0, 1, cmd);
 	if (ret)
 		return ret;
-	msleep(2);
+
+	ret = vsc73xx_mdio_busy_check(vsc);
+	if (ret)
+		return ret;
+
 	ret = vsc73xx_read(vsc, VSC73XX_BLOCK_MII, 0, 2, &val);
 	if (ret)
 		return ret;
@@ -524,6 +555,10 @@ static int vsc73xx_phy_write(struct dsa_switch *ds, int phy, int regnum,
 	u32 cmd;
 	int ret;
 
+	ret = vsc73xx_mdio_busy_check(vsc);
+	if (ret)
+		return ret;
+
 	/* It was found through tedious experiments that this router
 	 * chip really hates to have it's PHYs reset. They
 	 * never recover if that happens: autonegotiation stops
-- 
2.43.0

[PATCH 5.10 026/151] mptcp: correct MPTCP_SUBFLOW_ATTR_SSN_OFFSET reserved size

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eugene Syromiatnikov <esyr@redhat.com>

[ Upstream commit 655111b838cdabdb604f3625a9ff08c5eedb11da ]

ssn_offset field is u32 and is placed into the netlink response with
nla_put_u32(), but only 2 bytes are reserved for the attribute payload
in subflow_get_info_size() (even though it makes no difference
in the end, as it is aligned up to 4 bytes).  Supply the correct
argument to the relevant nla_total_size() call to make it less
confusing.

Fixes: 5147dfb50832 ("mptcp: allow dumping subflow context to userspace")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240812065024.GA19719@asgard.redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mptcp/diag.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mptcp/diag.c b/net/mptcp/diag.c
index d7ca71c597545..23bd18084c8a2 100644
--- a/net/mptcp/diag.c
+++ b/net/mptcp/diag.c
@@ -95,7 +95,7 @@ static size_t subflow_get_info_size(const struct sock *sk)
 		nla_total_size(4) +	/* MPTCP_SUBFLOW_ATTR_RELWRITE_SEQ */
 		nla_total_size_64bit(8) +	/* MPTCP_SUBFLOW_ATTR_MAP_SEQ */
 		nla_total_size(4) +	/* MPTCP_SUBFLOW_ATTR_MAP_SFSEQ */
-		nla_total_size(2) +	/* MPTCP_SUBFLOW_ATTR_SSN_OFFSET */
+		nla_total_size(4) +	/* MPTCP_SUBFLOW_ATTR_SSN_OFFSET */
 		nla_total_size(2) +	/* MPTCP_SUBFLOW_ATTR_MAP_DATALEN */
 		nla_total_size(4) +	/* MPTCP_SUBFLOW_ATTR_FLAGS */
 		nla_total_size(1) +	/* MPTCP_SUBFLOW_ATTR_ID_REM */
-- 
2.43.0

[PATCH 5.10 027/151] netfilter: flowtable: initialise extack before use

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Donald Hunter <donald.hunter@gmail.com>

[ Upstream commit e9767137308daf906496613fd879808a07f006a2 ]

Fix missing initialisation of extack in flow offload.

Fixes: c29f74e0df7a ("netfilter: nf_flow_table: hardware offload support")
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_flow_table_offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index 746ca77d0aad6..f6275d93f8a51 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -682,8 +682,8 @@ static int nf_flow_offload_tuple(struct nf_flowtable *flowtable,
 				 struct list_head *block_cb_list)
 {
 	struct flow_cls_offload cls_flow = {};
+	struct netlink_ext_ack extack = {};
 	struct flow_block_cb *block_cb;
-	struct netlink_ext_ack extack;
 	__be16 proto = ETH_P_ALL;
 	int err, i = 0;
 
-- 
2.43.0

[PATCH 5.10 028/151] net: hns3: fix wrong use of semaphore up

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jie Wang <wangjie125@huawei.com>

[ Upstream commit 8445d9d3c03101859663d34fda747f6a50947556 ]

Currently, if hns3 PF or VF FLR reset failed after five times retry,
the reset done process will directly release the semaphore
which has already released in hclge_reset_prepare_general.
This will cause down operation fail.

So this patch fixes it by adding reset state judgement. The up operation is
only called after successful PF FLR reset.

Fixes: 8627bdedc435 ("net: hns3: refactor the precedure of PF FLR")
Fixes: f28368bb4542 ("net: hns3: refactor the procedure of VF FLR")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c   | 4 ++--
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 5dbee850fef53..885793707a5f1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -10051,8 +10051,8 @@ static void hclge_flr_done(struct hnae3_ae_dev *ae_dev)
 		dev_err(&hdev->pdev->dev, "fail to rebuild, ret=%d\n", ret);
 
 	hdev->reset_type = HNAE3_NONE_RESET;
-	clear_bit(HCLGE_STATE_RST_HANDLING, &hdev->state);
-	up(&hdev->reset_sem);
+	if (test_and_clear_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+		up(&hdev->reset_sem);
 }
 
 static void hclge_clear_resetting_state(struct hclge_dev *hdev)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index be41117ec1465..755935f9efc81 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2093,8 +2093,8 @@ static void hclgevf_flr_done(struct hnae3_ae_dev *ae_dev)
 			 ret);
 
 	hdev->reset_type = HNAE3_NONE_RESET;
-	clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state);
-	up(&hdev->reset_sem);
+	if (test_and_clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state))
+		up(&hdev->reset_sem);
 }
 
 static u32 hclgevf_get_fw_version(struct hnae3_handle *handle)
-- 
2.43.0

[PATCH 5.10 029/151] net: hns3: fix a deadlock problem when config TC during resetting

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jie Wang <wangjie125@huawei.com>

[ Upstream commit be5e816d00a506719e9dbb1a9c861c5ced30a109 ]

When config TC during the reset process, may cause a deadlock, the flow is
as below:
                             pf reset start
                                 │
                                 ▼
                              ......
setup tc                         │
    │                            ▼
    ▼                      DOWN: napi_disable()
napi_disable()(skip)             │
    │                            │
    ▼                            ▼
  ......                      ......
    │                            │
    ▼                            │
napi_enable()                    │
                                 ▼
                           UINIT: netif_napi_del()
                                 │
                                 ▼
                              ......
                                 │
                                 ▼
                           INIT: netif_napi_add()
                                 │
                                 ▼
                              ......                 global reset start
                                 │                      │
                                 ▼                      ▼
                           UP: napi_enable()(skip)    ......
                                 │                      │
                                 ▼                      ▼
                              ......                 napi_disable()

In reset process, the driver will DOWN the port and then UINIT, in this
case, the setup tc process will UP the port before UINIT, so cause the
problem. Adds a DOWN process in UINIT to fix it.

Fixes: bb6b94a896d4 ("net: hns3: Add reset interface implementation in client")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index f8275534205a7..9ff5179b4d879 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -4536,6 +4536,9 @@ static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle)
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	int ret;
 
+	if (!test_bit(HNS3_NIC_STATE_DOWN, &priv->state))
+		hns3_nic_net_stop(netdev);
+
 	if (!test_and_clear_bit(HNS3_NIC_STATE_INITED, &priv->state)) {
 		netdev_warn(netdev, "already uninitialized\n");
 		return 0;
-- 
2.43.0

[PATCH 5.10 030/151] ALSA: hda/realtek: Fix noise from speakers on Lenovo IdeaPad 3 15IAU7

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Parsa Poorshikhian <parsa.poorsh@gmail.com>

[ Upstream commit ef9718b3d54e822de294351251f3a574f8a082ce ]

Fix noise from speakers connected to AUX port when no sound is playing.
The problem occurs because the `alc_shutup_pins` function includes
a 0x10ec0257 vendor ID, which causes noise on Lenovo IdeaPad 3 15IAU7 with
Realtek ALC257 codec when no sound is playing.
Removing this vendor ID from the function fixes the bug.

Fixes: 70794b9563fe ("ALSA: hda/realtek: Add more codec ID to no shutup pins list")
Signed-off-by: Parsa Poorshikhian <parsa.poorsh@gmail.com>
Link: https://patch.msgid.link/20240810150939.330693-1-parsa.poorsh@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_realtek.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e8e9cfb4a9357..04fd52bba0573 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -578,7 +578,6 @@ static void alc_shutup_pins(struct hda_codec *codec)
 	switch (codec->core.vendor_id) {
 	case 0x10ec0236:
 	case 0x10ec0256:
-	case 0x10ec0257:
 	case 0x19e58326:
 	case 0x10ec0283:
 	case 0x10ec0285:
-- 
2.43.0

[PATCH 5.10 031/151] ssb: Fix division by zero issue in ssb_calc_clock_rate

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Rand Deeb <rand.sec96@gmail.com>

[ Upstream commit e0b5127fa134fe0284d58877b6b3133939c8b3ce ]

In ssb_calc_clock_rate(), there is a potential issue where the value of
m1 could be zero due to initialization using clkfactor_f6_resolv(). This
situation raised concerns about the possibility of a division by zero
error.

We fixed it by following the suggestions provided by Larry Finger
<Larry.Finger@lwfinger.net> and Michael Büsch <m@bues.ch>. The fix
involves returning a value of 1 instead of 0 in clkfactor_f6_resolv().
This modification ensures the proper functioning of the code and
eliminates the risk of division by zero errors.

Signed-off-by: Rand Deeb <rand.sec96@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Michael Büsch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230904232346.34991-1-rand.sec96@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ssb/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 0a26984acb2ca..9e54bc7eec663 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -835,7 +835,7 @@ static u32 clkfactor_f6_resolve(u32 v)
 	case SSB_CHIPCO_CLK_F6_7:
 		return 7;
 	}
-	return 0;
+	return 1;
 }
 
 /* Calculate the speed the backplane would run at a given set of clockcontrol values */
-- 
2.43.0

[PATCH 5.10 032/151] wifi: mac80211: fix BA session teardown race

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 05f136220d17839eb7c155f015ace9152f603225 ]

As previously reported by Alexander, whose commit 69403bad97aa
("wifi: mac80211: sdata can be NULL during AMPDU start") I'm
reverting as part of this commit, there's a race between station
destruction and aggregation setup, where the aggregation setup
can happen while the station is being removed and queue the work
after ieee80211_sta_tear_down_BA_sessions() has already run in
__sta_info_destroy_part1(), and thus the worker will run with a
now freed station. In his case, this manifested in a NULL sdata
pointer, but really there's no guarantee whatsoever.

The real issue seems to be that it's possible at all to have a
situation where this occurs - we want to stop the BA sessions
when doing _part1, but we cannot be sure, and WLAN_STA_BLOCK_BA
isn't necessarily effective since we don't know that the setup
isn't concurrently running and already got past the check.

Simply call ieee80211_sta_tear_down_BA_sessions() again in the
second part of station destruction, since at that point really
nothing else can hold a reference to the station any more.

Also revert the sdata checks since those are just misleading at
this point.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/agg-tx.c     |  6 +-----
 net/mac80211/driver-ops.c |  3 ---
 net/mac80211/sta_info.c   | 14 ++++++++++++++
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 92e5812daf892..4b4ab1961068f 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -491,7 +491,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 {
 	struct tid_ampdu_tx *tid_tx;
 	struct ieee80211_local *local = sta->local;
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	struct ieee80211_ampdu_params params = {
 		.sta = &sta->sta,
 		.action = IEEE80211_AMPDU_TX_START,
@@ -521,7 +521,6 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 	 */
 	synchronize_net();
 
-	sdata = sta->sdata;
 	params.ssn = sta->tid_seq[tid] >> 4;
 	ret = drv_ampdu_action(local, sdata, &params);
 	tid_tx->ssn = params.ssn;
@@ -535,9 +534,6 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 		 */
 		set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state);
 	} else if (ret) {
-		if (!sdata)
-			return;
-
 		ht_dbg(sdata,
 		       "BA request denied - HW unavailable for %pM tid %d\n",
 		       sta->sta.addr, tid);
diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c
index 120bd9cdf7dfa..48322e45e7ddb 100644
--- a/net/mac80211/driver-ops.c
+++ b/net/mac80211/driver-ops.c
@@ -331,9 +331,6 @@ int drv_ampdu_action(struct ieee80211_local *local,
 
 	might_sleep();
 
-	if (!sdata)
-		return -EIO;
-
 	sdata = get_bss_sdata(sdata);
 	if (!check_sdata_in_driver(sdata))
 		return -EIO;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index f7637176d719d..3bb7a3314788e 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1064,6 +1064,20 @@ static void __sta_info_destroy_part2(struct sta_info *sta)
 	 *	 after _part1 and before _part2!
 	 */
 
+	/*
+	 * There's a potential race in _part1 where we set WLAN_STA_BLOCK_BA
+	 * but someone might have just gotten past a check, and not yet into
+	 * queuing the work/creating the data/etc.
+	 *
+	 * Do another round of destruction so that the worker is certainly
+	 * canceled before we later free the station.
+	 *
+	 * Since this is after synchronize_rcu()/synchronize_net() we're now
+	 * certain that nobody can actually hold a reference to the STA and
+	 * be calling e.g. ieee80211_start_tx_ba_session().
+	 */
+	ieee80211_sta_tear_down_BA_sessions(sta, AGG_STOP_DESTROY_STA);
+
 	might_sleep();
 	lockdep_assert_held(&local->sta_mtx);
 
-- 
2.43.0

[PATCH 5.10 033/151] wifi: cw1200: Avoid processing an invalid TIM IE

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jeff Johnson <quic_jjohnson@quicinc.com>

[ Upstream commit b7bcea9c27b3d87b54075735c870500123582145 ]

While converting struct ieee80211_tim_ie::virtual_map to be a flexible
array it was observed that the TIM IE processing in cw1200_rx_cb()
could potentially process a malformed IE in a manner that could result
in a buffer over-read. Add logic to verify that the TIM IE length is
large enough to hold a valid TIM payload before processing it.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230831-ieee80211_tim_ie-v3-1-e10ff584ab5d@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/st/cw1200/txrx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/st/cw1200/txrx.c b/drivers/net/wireless/st/cw1200/txrx.c
index 400dd585916b5..7ef0886503578 100644
--- a/drivers/net/wireless/st/cw1200/txrx.c
+++ b/drivers/net/wireless/st/cw1200/txrx.c
@@ -1170,7 +1170,7 @@ void cw1200_rx_cb(struct cw1200_common *priv,
 		size_t ies_len = skb->len - (ies - (u8 *)(skb->data));
 
 		tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies, ies_len);
-		if (tim_ie) {
+		if (tim_ie && tim_ie[1] >= sizeof(struct ieee80211_tim_ie)) {
 			struct ieee80211_tim_ie *tim =
 				(struct ieee80211_tim_ie *)&tim_ie[2];
 
-- 
2.43.0

[PATCH 5.10 034/151] i2c: riic: avoid potential division by zero

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit 7890fce6201aed46d3576e3d641f9ee5c1f0e16f ]

Value comes from DT, so it could be 0. Unlikely, but could be.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-riic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c
index 4eccc0f69861f..d8f252c4caf2b 100644
--- a/drivers/i2c/busses/i2c-riic.c
+++ b/drivers/i2c/busses/i2c-riic.c
@@ -312,7 +312,7 @@ static int riic_init_hw(struct riic_dev *riic, struct i2c_timings *t)
 	 * frequency with only 62 clock ticks max (31 high, 31 low).
 	 * Aim for a duty of 60% LOW, 40% HIGH.
 	 */
-	total_ticks = DIV_ROUND_UP(rate, t->bus_freq_hz);
+	total_ticks = DIV_ROUND_UP(rate, t->bus_freq_hz ?: 1);
 
 	for (cks = 0; cks < 7; cks++) {
 		/*
-- 
2.43.0

[PATCH 5.10 035/151] RDMA/rtrs: Fix the problem of variable not initialized fully

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhu Yanjun <yanjun.zhu@linux.dev>

[ Upstream commit c5930a1aa08aafe6ffe15b5d28fe875f88f6ac86 ]

No functionality change. The variable which is not initialized fully
will introduce potential risks.

Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://lore.kernel.org/r/20230919020806.534183-1-yanjun.zhu@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/rtrs/rtrs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c
index 76b993e8d672f..f34793068f344 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs.c
@@ -235,7 +235,7 @@ static int create_cq(struct rtrs_con *con, int cq_vector, u16 cq_size,
 static int create_qp(struct rtrs_con *con, struct ib_pd *pd,
 		     u32 max_send_wr, u32 max_recv_wr, u32 max_sge)
 {
-	struct ib_qp_init_attr init_attr = {NULL};
+	struct ib_qp_init_attr init_attr = {};
 	struct rdma_cm_id *cm_id = con->cm_id;
 	int ret;
 
-- 
2.43.0

[PATCH 5.10 036/151] s390/smp,mcck: fix early IPI handling

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Heiko Carstens <hca@linux.ibm.com>

[ Upstream commit 4a1725281fc5b0009944b1c0e1d2c1dc311a09ec ]

Both the external call as well as the emergency signal submask bits in
control register 0 are set before any interrupt handler is registered.

Change the order and first register the interrupt handler and only then
enable the interrupts by setting the corresponding bits in control
register 0.

This prevents that the second part of the machine check handler for
early machine check handling is not executed: the machine check handler
sends an IPI to the CPU it runs on. If the corresponding interrupts are
enabled, but no interrupt handler is present, the interrupt is ignored.

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kernel/early.c | 12 +++---------
 arch/s390/kernel/smp.c   |  4 ++--
 2 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 985e1e7553336..bac1be43d36cb 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -252,15 +252,9 @@ static inline void save_vector_registers(void)
 #endif
 }
 
-static inline void setup_control_registers(void)
+static inline void setup_low_address_protection(void)
 {
-	unsigned long reg;
-
-	__ctl_store(reg, 0, 0);
-	reg |= CR0_LOW_ADDRESS_PROTECTION;
-	reg |= CR0_EMERGENCY_SIGNAL_SUBMASK;
-	reg |= CR0_EXTERNAL_CALL_SUBMASK;
-	__ctl_load(reg, 0, 0);
+	__ctl_set_bit(0, 28);
 }
 
 static inline void setup_access_registers(void)
@@ -313,7 +307,7 @@ void __init startup_init(void)
 	save_vector_registers();
 	setup_topology();
 	sclp_early_detect();
-	setup_control_registers();
+	setup_low_address_protection();
 	setup_access_registers();
 	lockdep_on();
 }
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 5674792726cd9..2e0c3b0a5a58a 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -982,12 +982,12 @@ void __init smp_fill_possible_mask(void)
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-	/* request the 0x1201 emergency signal external interrupt */
 	if (register_external_irq(EXT_IRQ_EMERGENCY_SIG, do_ext_call_interrupt))
 		panic("Couldn't request external interrupt 0x1201");
-	/* request the 0x1202 external call external interrupt */
+	ctl_set_bit(0, 14);
 	if (register_external_irq(EXT_IRQ_EXTERNAL_CALL, do_ext_call_interrupt))
 		panic("Couldn't request external interrupt 0x1202");
+	ctl_set_bit(0, 13);
 }
 
 void __init smp_prepare_boot_cpu(void)
-- 
2.43.0

[PATCH 5.10 037/151] media: radio-isa: use dev_name to fill in bus_info

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

[ Upstream commit 8b7f3cf4eb9a95940eaabad3226caeaa0d9aa59d ]

This fixes this warning:

drivers/media/radio/radio-isa.c: In function 'radio_isa_querycap':
drivers/media/radio/radio-isa.c:39:57: warning: '%s' directive output may be truncated writing up to 35 bytes into a region of size 28 [-Wformat-truncation=]
   39 |         snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
      |                                                         ^~
drivers/media/radio/radio-isa.c:39:9: note: 'snprintf' output between 5 and 40 bytes into a destination of size 32
   39 |         snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/radio/radio-isa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/radio/radio-isa.c b/drivers/media/radio/radio-isa.c
index ad2ac16ff12dd..610d3e3269518 100644
--- a/drivers/media/radio/radio-isa.c
+++ b/drivers/media/radio/radio-isa.c
@@ -36,7 +36,7 @@ static int radio_isa_querycap(struct file *file, void  *priv,
 
 	strscpy(v->driver, isa->drv->driver.driver.name, sizeof(v->driver));
 	strscpy(v->card, isa->drv->card, sizeof(v->card));
-	snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
+	snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", dev_name(isa->v4l2_dev.dev));
 	return 0;
 }
 
-- 
2.43.0

[PATCH 5.10 038/151] staging: iio: resolver: ad2s1210: fix use before initialization

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Lechner <dlechner@baylibre.com>

[ Upstream commit 7fe2d05cee46b1c4d9f1efaeab08cc31a0dfff60 ]

This fixes a use before initialization in ad2s1210_probe(). The
ad2s1210_setup_gpios() function uses st->sdev but it was being called
before this field was initialized.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20230929-ad2s1210-mainline-v3-2-fa4364281745@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/iio/resolver/ad2s1210.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index a19cfb2998c93..f19bb5c796cf7 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -658,9 +658,6 @@ static int ad2s1210_probe(struct spi_device *spi)
 	if (!indio_dev)
 		return -ENOMEM;
 	st = iio_priv(indio_dev);
-	ret = ad2s1210_setup_gpios(st);
-	if (ret < 0)
-		return ret;
 
 	spi_set_drvdata(spi, indio_dev);
 
@@ -671,6 +668,10 @@ static int ad2s1210_probe(struct spi_device *spi)
 	st->resolution = 12;
 	st->fexcit = AD2S1210_DEF_EXCIT;
 
+	ret = ad2s1210_setup_gpios(st);
+	if (ret < 0)
+		return ret;
+
 	indio_dev->info = &ad2s1210_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = ad2s1210_channels;
-- 
2.43.0

[PATCH 5.10 039/151] drm/amd/display: Validate hw_points_num before using it

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Hung <alex.hung@amd.com>

[ Upstream commit 58c3b3341cea4f75dc8c003b89f8a6dd8ec55e50 ]

[WHAT]
hw_points_num is 0 before ogam LUT is programmed; however, function
"dwb3_program_ogam_pwl" assumes hw_points_num is always greater than 0,
i.e. substracting it by 1 as an array index.

[HOW]
Check hw_points_num is not equal to 0 before using it.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c
index 6d621f07be489..1c170fbb634da 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c
@@ -243,6 +243,9 @@ static bool dwb3_program_ogam_lut(
 		return false;
 	}
 
+	if (params->hw_points_num == 0)
+		return false;
+
 	REG_SET(DWB_OGAM_CONTROL, 0, DWB_OGAM_MODE, 2);
 
 	current_mode = dwb3_get_ogam_current(dwbc30);
-- 
2.43.0

[PATCH 5.10 040/151] staging: ks7010: disable bh on tx_dev_lock

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chengfeng Ye <dg573847474@gmail.com>

[ Upstream commit 058cbee52ccd7be77e373d31a4f14670cfd32018 ]

As &priv->tx_dev.tx_dev_lock is also acquired by xmit callback which
could be call from timer under softirq context, use spin_lock_bh()
on it to prevent potential deadlock.

hostif_sme_work()
--> hostif_sme_set_pmksa()
--> hostif_mib_set_request()
--> ks_wlan_hw_tx()
--> spin_lock(&priv->tx_dev.tx_dev_lock)

ks_wlan_start_xmit()
--> hostif_data_request()
--> ks_wlan_hw_tx()
--> spin_lock(&priv->tx_dev.tx_dev_lock)

Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Link: https://lore.kernel.org/r/20230926161323.41928-1-dg573847474@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/ks7010/ks7010_sdio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
index 8c740c771f509..8e3fc4b78fd20 100644
--- a/drivers/staging/ks7010/ks7010_sdio.c
+++ b/drivers/staging/ks7010/ks7010_sdio.c
@@ -395,9 +395,9 @@ int ks_wlan_hw_tx(struct ks_wlan_private *priv, void *p, unsigned long size,
 	priv->hostt.buff[priv->hostt.qtail] = le16_to_cpu(hdr->event);
 	priv->hostt.qtail = (priv->hostt.qtail + 1) % SME_EVENT_BUFF_SIZE;
 
-	spin_lock(&priv->tx_dev.tx_dev_lock);
+	spin_lock_bh(&priv->tx_dev.tx_dev_lock);
 	result = enqueue_txdev(priv, p, size, complete_handler, skb);
-	spin_unlock(&priv->tx_dev.tx_dev_lock);
+	spin_unlock_bh(&priv->tx_dev.tx_dev_lock);
 
 	if (txq_has_space(priv))
 		queue_delayed_work(priv->wq, &priv->rw_dwork, 0);
-- 
2.43.0

[PATCH 5.10 041/151] binfmt_misc: cleanup on filesystem umount

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christian Brauner <christian.brauner@ubuntu.com>

[ Upstream commit 1c5976ef0f7ad76319df748ccb99a4c7ba2ba464 ]

Currently, registering a new binary type pins the binfmt_misc
filesystem. Specifically, this means that as long as there is at least
one binary type registered the binfmt_misc filesystem survives all
umounts, i.e. the superblock is not destroyed. Meaning that a umount
followed by another mount will end up with the same superblock and the
same binary type handlers. This is a behavior we tend to discourage for
any new filesystems (apart from a few special filesystems such as e.g.
configfs or debugfs). A umount operation without the filesystem being
pinned - by e.g. someone holding a file descriptor to an open file -
should usually result in the destruction of the superblock and all
associated resources. This makes introspection easier and leads to
clearly defined, simple and clean semantics. An administrator can rely
on the fact that a umount will guarantee a clean slate making it
possible to reinitialize a filesystem. Right now all binary types would
need to be explicitly deleted before that can happen.

This allows us to remove the heavy-handed calls to simple_pin_fs() and
simple_release_fs() when creating and deleting binary types. This in
turn allows us to replace the current brittle pinning mechanism abusing
dget() which has caused a range of bugs judging from prior fixes in [2]
and [3]. The additional dget() in load_misc_binary() pins the dentry but
only does so for the sake to prevent ->evict_inode() from freeing the
node when a user removes the binary type and kill_node() is run. Which
would mean ->interpreter and ->interp_file would be freed causing a UAF.

This isn't really nicely documented nor is it very clean because it
relies on simple_pin_fs() pinning the filesystem as long as at least one
binary type exists. Otherwise it would cause load_misc_binary() to hold
on to a dentry belonging to a superblock that has been shutdown.
Replace that implicit pinning with a clean and simple per-node refcount
and get rid of the ugly dget() pinning. A similar mechanism exists for
e.g. binderfs (cf. [4]). All the cleanup work can now be done in
->evict_inode().

In a follow-up patch we will make it possible to use binfmt_misc in
sandboxes. We will use the cleaner semantics where a umount for the
filesystem will cause the superblock and all resources to be
deallocated. In preparation for this apply the same semantics to the
initial binfmt_misc mount. Note, that this is a user-visible change and
as such a uapi change but one that we can reasonably risk. We've
discussed this in earlier versions of this patchset (cf. [1]).

The main user and provider of binfmt_misc is systemd. Systemd provides
binfmt_misc via autofs since it is configurable as a kernel module and
is used by a few exotic packages and users. As such a binfmt_misc mount
is triggered when /proc/sys/fs/binfmt_misc is accessed and is only
provided on demand. Other autofs on demand filesystems include EFI ESP
which systemd umounts if the mountpoint stays idle for a certain amount
of time. This doesn't apply to the binfmt_misc autofs mount which isn't
touched once it is mounted meaning this change can't accidently wipe
binary type handlers without someone having explicitly unmounted
binfmt_misc. After speaking to systemd folks they don't expect this
change to affect them.

In line with our general policy, if we see a regression for systemd or
other users with this change we will switch back to the old behavior for
the initial binfmt_misc mount and have binary types pin the filesystem
again. But while we touch this code let's take the chance and let's
improve on the status quo.

[1]: https://lore.kernel.org/r/20191216091220.465626-2-laurent@vivier.eu
[2]: commit 43a4f2619038 ("exec: binfmt_misc: fix race between load_misc_binary() and kill_node()"
[3]: commit 83f918274e4b ("exec: binfmt_misc: shift filp_close(interp_file) from kill_node() to bm_evict_inode()")
[4]: commit f0fe2c0f050d ("binder: prevent UAF for binderfs devices II")

Link: https://lore.kernel.org/r/20211028103114.2849140-1-brauner@kernel.org (v1)
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Jann Horn <jannh@google.com>
Cc: Henning Schild <henning.schild@siemens.com>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: linux-fsdevel@vger.kernel.org
Acked-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/binfmt_misc.c | 216 ++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 168 insertions(+), 48 deletions(-)

diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index ce0047feea729..744ae53d483db 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -60,12 +60,11 @@ typedef struct {
 	char *name;
 	struct dentry *dentry;
 	struct file *interp_file;
+	refcount_t users;		/* sync removal with load_misc_binary() */
 } Node;
 
 static DEFINE_RWLOCK(entries_lock);
 static struct file_system_type bm_fs_type;
-static struct vfsmount *bm_mnt;
-static int entry_count;
 
 /*
  * Max length of the register string.  Determined by:
@@ -82,19 +81,23 @@ static int entry_count;
  */
 #define MAX_REGISTER_LENGTH 1920
 
-/*
- * Check if we support the binfmt
- * if we do, return the node, else NULL
- * locking is done in load_misc_binary
+/**
+ * search_binfmt_handler - search for a binary handler for @bprm
+ * @misc: handle to binfmt_misc instance
+ * @bprm: binary for which we are looking for a handler
+ *
+ * Search for a binary type handler for @bprm in the list of registered binary
+ * type handlers.
+ *
+ * Return: binary type list entry on success, NULL on failure
  */
-static Node *check_file(struct linux_binprm *bprm)
+static Node *search_binfmt_handler(struct linux_binprm *bprm)
 {
 	char *p = strrchr(bprm->interp, '.');
-	struct list_head *l;
+	Node *e;
 
 	/* Walk all the registered handlers. */
-	list_for_each(l, &entries) {
-		Node *e = list_entry(l, Node, list);
+	list_for_each_entry(e, &entries, list) {
 		char *s;
 		int j;
 
@@ -123,9 +126,49 @@ static Node *check_file(struct linux_binprm *bprm)
 		if (j == e->size)
 			return e;
 	}
+
 	return NULL;
 }
 
+/**
+ * get_binfmt_handler - try to find a binary type handler
+ * @misc: handle to binfmt_misc instance
+ * @bprm: binary for which we are looking for a handler
+ *
+ * Try to find a binfmt handler for the binary type. If one is found take a
+ * reference to protect against removal via bm_{entry,status}_write().
+ *
+ * Return: binary type list entry on success, NULL on failure
+ */
+static Node *get_binfmt_handler(struct linux_binprm *bprm)
+{
+	Node *e;
+
+	read_lock(&entries_lock);
+	e = search_binfmt_handler(bprm);
+	if (e)
+		refcount_inc(&e->users);
+	read_unlock(&entries_lock);
+	return e;
+}
+
+/**
+ * put_binfmt_handler - put binary handler node
+ * @e: node to put
+ *
+ * Free node syncing with load_misc_binary() and defer final free to
+ * load_misc_binary() in case it is using the binary type handler we were
+ * requested to remove.
+ */
+static void put_binfmt_handler(Node *e)
+{
+	if (refcount_dec_and_test(&e->users)) {
+		if (e->flags & MISC_FMT_OPEN_FILE)
+			filp_close(e->interp_file, NULL);
+		kfree(e);
+	}
+}
+
 /*
  * the loader itself
  */
@@ -139,12 +182,7 @@ static int load_misc_binary(struct linux_binprm *bprm)
 	if (!enabled)
 		return retval;
 
-	/* to keep locking time low, we copy the interpreter string */
-	read_lock(&entries_lock);
-	fmt = check_file(bprm);
-	if (fmt)
-		dget(fmt->dentry);
-	read_unlock(&entries_lock);
+	fmt = get_binfmt_handler(bprm);
 	if (!fmt)
 		return retval;
 
@@ -196,7 +234,16 @@ static int load_misc_binary(struct linux_binprm *bprm)
 
 	retval = 0;
 ret:
-	dput(fmt->dentry);
+
+	/*
+	 * If we actually put the node here all concurrent calls to
+	 * load_misc_binary() will have finished. We also know
+	 * that for the refcount to be zero ->evict_inode() must have removed
+	 * the node to be deleted from the list. All that is left for us is to
+	 * close and free.
+	 */
+	put_binfmt_handler(fmt);
+
 	return retval;
 }
 
@@ -551,30 +598,90 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode)
 	return inode;
 }
 
+/**
+ * bm_evict_inode - cleanup data associated with @inode
+ * @inode: inode to which the data is attached
+ *
+ * Cleanup the binary type handler data associated with @inode if a binary type
+ * entry is removed or the filesystem is unmounted and the super block is
+ * shutdown.
+ *
+ * If the ->evict call was not caused by a super block shutdown but by a write
+ * to remove the entry or all entries via bm_{entry,status}_write() the entry
+ * will have already been removed from the list. We keep the list_empty() check
+ * to make that explicit.
+*/
 static void bm_evict_inode(struct inode *inode)
 {
 	Node *e = inode->i_private;
 
-	if (e && e->flags & MISC_FMT_OPEN_FILE)
-		filp_close(e->interp_file, NULL);
-
 	clear_inode(inode);
-	kfree(e);
+
+	if (e) {
+		write_lock(&entries_lock);
+		if (!list_empty(&e->list))
+			list_del_init(&e->list);
+		write_unlock(&entries_lock);
+		put_binfmt_handler(e);
+	}
 }
 
-static void kill_node(Node *e)
+/**
+ * unlink_binfmt_dentry - remove the dentry for the binary type handler
+ * @dentry: dentry associated with the binary type handler
+ *
+ * Do the actual filesystem work to remove a dentry for a registered binary
+ * type handler. Since binfmt_misc only allows simple files to be created
+ * directly under the root dentry of the filesystem we ensure that we are
+ * indeed passed a dentry directly beneath the root dentry, that the inode
+ * associated with the root dentry is locked, and that it is a regular file we
+ * are asked to remove.
+ */
+static void unlink_binfmt_dentry(struct dentry *dentry)
 {
-	struct dentry *dentry;
+	struct dentry *parent = dentry->d_parent;
+	struct inode *inode, *parent_inode;
+
+	/* All entries are immediate descendants of the root dentry. */
+	if (WARN_ON_ONCE(dentry->d_sb->s_root != parent))
+		return;
 
+	/* We only expect to be called on regular files. */
+	inode = d_inode(dentry);
+	if (WARN_ON_ONCE(!S_ISREG(inode->i_mode)))
+		return;
+
+	/* The parent inode must be locked. */
+	parent_inode = d_inode(parent);
+	if (WARN_ON_ONCE(!inode_is_locked(parent_inode)))
+		return;
+
+	if (simple_positive(dentry)) {
+		dget(dentry);
+		simple_unlink(parent_inode, dentry);
+		d_delete(dentry);
+		dput(dentry);
+	}
+}
+
+/**
+ * remove_binfmt_handler - remove a binary type handler
+ * @misc: handle to binfmt_misc instance
+ * @e: binary type handler to remove
+ *
+ * Remove a binary type handler from the list of binary type handlers and
+ * remove its associated dentry. This is called from
+ * binfmt_{entry,status}_write(). In the future, we might want to think about
+ * adding a proper ->unlink() method to binfmt_misc instead of forcing caller's
+ * to use writes to files in order to delete binary type handlers. But it has
+ * worked for so long that it's not a pressing issue.
+ */
+static void remove_binfmt_handler(Node *e)
+{
 	write_lock(&entries_lock);
 	list_del_init(&e->list);
 	write_unlock(&entries_lock);
-
-	dentry = e->dentry;
-	drop_nlink(d_inode(dentry));
-	d_drop(dentry);
-	dput(dentry);
-	simple_release_fs(&bm_mnt, &entry_count);
+	unlink_binfmt_dentry(e->dentry);
 }
 
 /* /<entry> */
@@ -601,8 +708,8 @@ bm_entry_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
 				size_t count, loff_t *ppos)
 {
-	struct dentry *root;
-	Node *e = file_inode(file)->i_private;
+	struct inode *inode = file_inode(file);
+	Node *e = inode->i_private;
 	int res = parse_command(buffer, count);
 
 	switch (res) {
@@ -616,13 +723,22 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
 		break;
 	case 3:
 		/* Delete this handler. */
-		root = file_inode(file)->i_sb->s_root;
-		inode_lock(d_inode(root));
+		inode = d_inode(inode->i_sb->s_root);
+		inode_lock(inode);
 
+		/*
+		 * In order to add new element or remove elements from the list
+		 * via bm_{entry,register,status}_write() inode_lock() on the
+		 * root inode must be held.
+		 * The lock is exclusive ensuring that the list can't be
+		 * modified. Only load_misc_binary() can access but does so
+		 * read-only. So we only need to take the write lock when we
+		 * actually remove the entry from the list.
+		 */
 		if (!list_empty(&e->list))
-			kill_node(e);
+			remove_binfmt_handler(e);
 
-		inode_unlock(d_inode(root));
+		inode_unlock(inode);
 		break;
 	default:
 		return res;
@@ -681,13 +797,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
 	if (!inode)
 		goto out2;
 
-	err = simple_pin_fs(&bm_fs_type, &bm_mnt, &entry_count);
-	if (err) {
-		iput(inode);
-		inode = NULL;
-		goto out2;
-	}
-
+	refcount_set(&e->users, 1);
 	e->dentry = dget(dentry);
 	inode->i_private = e;
 	inode->i_fop = &bm_entry_operations;
@@ -731,7 +841,8 @@ static ssize_t bm_status_write(struct file *file, const char __user *buffer,
 		size_t count, loff_t *ppos)
 {
 	int res = parse_command(buffer, count);
-	struct dentry *root;
+	Node *e, *next;
+	struct inode *inode;
 
 	switch (res) {
 	case 1:
@@ -744,13 +855,22 @@ static ssize_t bm_status_write(struct file *file, const char __user *buffer,
 		break;
 	case 3:
 		/* Delete all handlers. */
-		root = file_inode(file)->i_sb->s_root;
-		inode_lock(d_inode(root));
+		inode = d_inode(file_inode(file)->i_sb->s_root);
+		inode_lock(inode);
 
-		while (!list_empty(&entries))
-			kill_node(list_first_entry(&entries, Node, list));
+		/*
+		 * In order to add new element or remove elements from the list
+		 * via bm_{entry,register,status}_write() inode_lock() on the
+		 * root inode must be held.
+		 * The lock is exclusive ensuring that the list can't be
+		 * modified. Only load_misc_binary() can access but does so
+		 * read-only. So we only need to take the write lock when we
+		 * actually remove the entry from the list.
+		 */
+		list_for_each_entry_safe(e, next, &entries, list)
+			remove_binfmt_handler(e);
 
-		inode_unlock(d_inode(root));
+		inode_unlock(inode);
 		break;
 	default:
 		return res;
-- 
2.43.0

[PATCH 5.10 042/151] media: qcom: venus: fix incorrect return value

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

[ Upstream commit 51b74c09ac8c5862007fc2bf0d465529d06dd446 ]

'pd' can be NULL, and in that case it shouldn't be passed to
PTR_ERR. Fixes a smatch warning:

drivers/media/platform/qcom/venus/pm_helpers.c:873 vcodec_domains_get() warn: passing zero to 'PTR_ERR'

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 6bf9c5c319de7..fd55352d743ee 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -765,7 +765,7 @@ static int vcodec_domains_get(struct venus_core *core)
 		pd = dev_pm_domain_attach_by_name(dev,
 						  res->vcodec_pmdomains[i]);
 		if (IS_ERR_OR_NULL(pd))
-			return PTR_ERR(pd) ? : -ENODATA;
+			return pd ? PTR_ERR(pd) : -ENODATA;
 		core->pmdomains[i] = pd;
 	}
 
-- 
2.43.0

[PATCH 5.10 043/151] scsi: spi: Fix sshdr use

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mike Christie <michael.christie@oracle.com>

[ Upstream commit 0b149cee836aa53989ea089af1cb9d90d7c6ac9e ]

If scsi_execute_cmd returns < 0, it doesn't initialize the sshdr, so we
shouldn't access the sshdr. If it returns 0, then the cmd executed
successfully, so there is no need to check the sshdr. This has us access
the sshdr when we get a return value > 0.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20231004210013.5601-7-michael.christie@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_transport_spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index c37dd15d16d24..83f2576ed2aa0 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -677,10 +677,10 @@ spi_dv_device_echo_buffer(struct scsi_device *sdev, u8 *buffer,
 	for (r = 0; r < retries; r++) {
 		result = spi_execute(sdev, spi_write_buffer, DMA_TO_DEVICE,
 				     buffer, len, &sshdr);
-		if(result || !scsi_device_online(sdev)) {
+		if (result || !scsi_device_online(sdev)) {
 
 			scsi_device_set_state(sdev, SDEV_QUIESCE);
-			if (scsi_sense_valid(&sshdr)
+			if (result > 0 && scsi_sense_valid(&sshdr)
 			    && sshdr.sense_key == ILLEGAL_REQUEST
 			    /* INVALID FIELD IN CDB */
 			    && sshdr.asc == 0x24 && sshdr.ascq == 0x00)
-- 
2.43.0

[PATCH 5.10 044/151] gfs2: setattr_chown: Add missing initialization

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andreas Gruenbacher <agruenba@redhat.com>

[ Upstream commit 2d8d7990619878a848b1d916c2f936d3012ee17d ]

Add a missing initialization of variable ap in setattr_chown().
Without, chown() may be able to bypass quotas.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index d75d56d9ea0ca..22905a076a6a2 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1905,7 +1905,7 @@ static int setattr_chown(struct inode *inode, struct iattr *attr)
 	kuid_t ouid, nuid;
 	kgid_t ogid, ngid;
 	int error;
-	struct gfs2_alloc_parms ap;
+	struct gfs2_alloc_parms ap = {};
 
 	ouid = inode->i_uid;
 	ogid = inode->i_gid;
-- 
2.43.0

[PATCH 5.10 045/151] wifi: iwlwifi: abort scan when rfkill on but device enabled

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Miri Korenblit <miriam.rachel.korenblit@intel.com>

[ Upstream commit 3c6a0b1f0add72e7f522bc9145222b86d0a7712a ]

In RFKILL we first set the RFKILL bit, then we abort scan
(if one exists) by waiting for the notification from FW
and notifying mac80211. And then we stop the device.
But in case we have a scan ongoing in the period of time between
rfkill on and before the device is stopped - we will not wait for the
FW notification because of the iwl_mvm_is_radio_killed() condition,
and then the scan_status and uid_status are misconfigured,
(scan_status is cleared but uid_status not)
and when the notification suddenly arrives (before stopping the device)
we will get into the assert about scan_status and uid_status mismatch.
Fix this by waiting for FW notif when rfkill is on but the device isn't
disabled yet.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231004123422.c43b69aa2c77.Icc7b5efb47974d6f499156ff7510b786e177993b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index a9df48c75155b..a52af491eed58 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -2675,7 +2675,7 @@ int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify)
 	if (!(mvm->scan_status & type))
 		return 0;
 
-	if (iwl_mvm_is_radio_killed(mvm)) {
+	if (!test_bit(STATUS_DEVICE_ENABLED, &mvm->trans->status)) {
 		ret = 0;
 		goto out;
 	}
-- 
2.43.0

[PATCH 5.10 046/151] IB/hfi1: Fix potential deadlock on &irq_src_lock and &dd->uctxt_lock

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chengfeng Ye <dg573847474@gmail.com>

[ Upstream commit 2f19c4b8395ccb6eb25ccafee883c8cfbe3fc193 ]

handle_receive_interrupt_napi_sp() running inside interrupt handler
could introduce inverse lock ordering between &dd->irq_src_lock
and &dd->uctxt_lock, if read_mod_write() is preempted by the isr.

          [CPU0]                                        |          [CPU1]
hfi1_ipoib_dev_open()                                   |
--> hfi1_netdev_enable_queues()                         |
--> enable_queues(rx)                                   |
--> hfi1_rcvctrl()                                      |
--> set_intr_bits()                                     |
--> read_mod_write()                                    |
--> spin_lock(&dd->irq_src_lock)                        |
                                                        | hfi1_poll()
                                                        | --> poll_next()
                                                        | --> spin_lock_irq(&dd->uctxt_lock)
                                                        |
                                                        | --> hfi1_rcvctrl()
                                                        | --> set_intr_bits()
                                                        | --> read_mod_write()
                                                        | --> spin_lock(&dd->irq_src_lock)
<interrupt>                                             |
   --> handle_receive_interrupt_napi_sp()               |
   --> set_all_fastpath()                               |
   --> hfi1_rcd_get_by_index()                          |
   --> spin_lock_irqsave(&dd->uctxt_lock)               |

This flaw was found by an experimental static analysis tool I am
developing for irq-related deadlock.

To prevent the potential deadlock, the patch use spin_lock_irqsave()
on &dd->irq_src_lock inside read_mod_write() to prevent the possible
deadlock scenario.

Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Link: https://lore.kernel.org/r/20230926101116.2797-1-dg573847474@gmail.com
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hfi1/chip.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index c74868f016379..b7ae4bf2f5499 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -13224,15 +13224,16 @@ static void read_mod_write(struct hfi1_devdata *dd, u16 src, u64 bits,
 {
 	u64 reg;
 	u16 idx = src / BITS_PER_REGISTER;
+	unsigned long flags;
 
-	spin_lock(&dd->irq_src_lock);
+	spin_lock_irqsave(&dd->irq_src_lock, flags);
 	reg = read_csr(dd, CCE_INT_MASK + (8 * idx));
 	if (set)
 		reg |= bits;
 	else
 		reg &= ~bits;
 	write_csr(dd, CCE_INT_MASK + (8 * idx), reg);
-	spin_unlock(&dd->irq_src_lock);
+	spin_unlock_irqrestore(&dd->irq_src_lock, flags);
 }
 
 /**
-- 
2.43.0

[PATCH 5.10 047/151] powerpc/xics: Check return value of kasprintf in icp_native_map_one_cpu

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kunwu Chan <chentao@kylinos.cn>

[ Upstream commit 45b1ba7e5d1f6881050d558baf9bc74a2ae13930 ]

kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231122030651.3818-1-chentao@kylinos.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/sysdev/xics/icp-native.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c
index 7d13d2ef5a905..66de291b27d08 100644
--- a/arch/powerpc/sysdev/xics/icp-native.c
+++ b/arch/powerpc/sysdev/xics/icp-native.c
@@ -235,6 +235,8 @@ static int __init icp_native_map_one_cpu(int hw_id, unsigned long addr,
 	rname = kasprintf(GFP_KERNEL, "CPU %d [0x%x] Interrupt Presentation",
 			  cpu, hw_id);
 
+	if (!rname)
+		return -ENOMEM;
 	if (!request_mem_region(addr, size, rname)) {
 		pr_warn("icp_native: Could not reserve ICP MMIO for CPU %d, interrupt server #0x%x\n",
 			cpu, hw_id);
-- 
2.43.0

[PATCH 5.10 048/151] nvmet-trace: avoid dereferencing pointer too early

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Daniel Wagner <dwagner@suse.de>

[ Upstream commit 0e716cec6fb11a14c220ee17c404b67962e902f7 ]

The first command issued from the host to the target is the fabrics
connect command. At this point, neither the target queue nor the
controller have been allocated. But we already try to trace this command
in nvmet_req_init.

Reported by KASAN.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/trace.c |  6 +++---
 drivers/nvme/target/trace.h | 28 +++++++++++++++++-----------
 2 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/nvme/target/trace.c b/drivers/nvme/target/trace.c
index 1373a3c67962a..a3564e12927b6 100644
--- a/drivers/nvme/target/trace.c
+++ b/drivers/nvme/target/trace.c
@@ -195,7 +195,7 @@ const char *nvmet_trace_disk_name(struct trace_seq *p, char *name)
 	return ret;
 }
 
-const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl)
+const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id)
 {
 	const char *ret = trace_seq_buffer_ptr(p);
 
@@ -208,8 +208,8 @@ const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl)
 	 * If we can know the extra data of the connect command in this stage,
 	 * we can update this print statement later.
 	 */
-	if (ctrl)
-		trace_seq_printf(p, "%d", ctrl->cntlid);
+	if (ctrl_id)
+		trace_seq_printf(p, "%d", ctrl_id);
 	else
 		trace_seq_printf(p, "_");
 	trace_seq_putc(p, 0);
diff --git a/drivers/nvme/target/trace.h b/drivers/nvme/target/trace.h
index c14e3249a14dc..13fb8265f9520 100644
--- a/drivers/nvme/target/trace.h
+++ b/drivers/nvme/target/trace.h
@@ -32,18 +32,24 @@ const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq *p, u8 fctype,
 	 nvmet_trace_parse_nvm_cmd(p, opcode, cdw10) :			\
 	 nvmet_trace_parse_admin_cmd(p, opcode, cdw10)))
 
-const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl);
-#define __print_ctrl_name(ctrl)				\
-	nvmet_trace_ctrl_name(p, ctrl)
+const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id);
+#define __print_ctrl_id(ctrl_id)			\
+	nvmet_trace_ctrl_id(p, ctrl_id)
 
 const char *nvmet_trace_disk_name(struct trace_seq *p, char *name);
 #define __print_disk_name(name)				\
 	nvmet_trace_disk_name(p, name)
 
 #ifndef TRACE_HEADER_MULTI_READ
-static inline struct nvmet_ctrl *nvmet_req_to_ctrl(struct nvmet_req *req)
+static inline u16 nvmet_req_to_ctrl_id(struct nvmet_req *req)
 {
-	return req->sq->ctrl;
+	/*
+	 * The queue and controller pointers are not valid until an association
+	 * has been established.
+	 */
+	if (!req->sq || !req->sq->ctrl)
+		return 0;
+	return req->sq->ctrl->cntlid;
 }
 
 static inline void __assign_req_name(char *name, struct nvmet_req *req)
@@ -60,7 +66,7 @@ TRACE_EVENT(nvmet_req_init,
 	TP_ARGS(req, cmd),
 	TP_STRUCT__entry(
 		__field(struct nvme_command *, cmd)
-		__field(struct nvmet_ctrl *, ctrl)
+		__field(u16, ctrl_id)
 		__array(char, disk, DISK_NAME_LEN)
 		__field(int, qid)
 		__field(u16, cid)
@@ -73,7 +79,7 @@ TRACE_EVENT(nvmet_req_init,
 	),
 	TP_fast_assign(
 		__entry->cmd = cmd;
-		__entry->ctrl = nvmet_req_to_ctrl(req);
+		__entry->ctrl_id = nvmet_req_to_ctrl_id(req);
 		__assign_req_name(__entry->disk, req);
 		__entry->qid = req->sq->qid;
 		__entry->cid = cmd->common.command_id;
@@ -87,7 +93,7 @@ TRACE_EVENT(nvmet_req_init,
 	),
 	TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, "
 		  "meta=%#llx, cmd=(%s, %s)",
-		__print_ctrl_name(__entry->ctrl),
+		__print_ctrl_id(__entry->ctrl_id),
 		__print_disk_name(__entry->disk),
 		__entry->qid, __entry->cid, __entry->nsid,
 		__entry->flags, __entry->metadata,
@@ -101,7 +107,7 @@ TRACE_EVENT(nvmet_req_complete,
 	TP_PROTO(struct nvmet_req *req),
 	TP_ARGS(req),
 	TP_STRUCT__entry(
-		__field(struct nvmet_ctrl *, ctrl)
+		__field(u16, ctrl_id)
 		__array(char, disk, DISK_NAME_LEN)
 		__field(int, qid)
 		__field(int, cid)
@@ -109,7 +115,7 @@ TRACE_EVENT(nvmet_req_complete,
 		__field(u16, status)
 	),
 	TP_fast_assign(
-		__entry->ctrl = nvmet_req_to_ctrl(req);
+		__entry->ctrl_id = nvmet_req_to_ctrl_id(req);
 		__entry->qid = req->cq->qid;
 		__entry->cid = req->cqe->command_id;
 		__entry->result = le64_to_cpu(req->cqe->result.u64);
@@ -117,7 +123,7 @@ TRACE_EVENT(nvmet_req_complete,
 		__assign_req_name(__entry->disk, req);
 	),
 	TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x",
-		__print_ctrl_name(__entry->ctrl),
+		__print_ctrl_id(__entry->ctrl_id),
 		__print_disk_name(__entry->disk),
 		__entry->qid, __entry->cid, __entry->result, __entry->status)
 
-- 
2.43.0

[PATCH 5.10 049/151] ext4: do not trim the group with corrupted block bitmap

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Baokun Li <libaokun1@huawei.com>

[ Upstream commit 172202152a125955367393956acf5f4ffd092e0d ]

Otherwise operating on an incorrupted block bitmap can lead to all sorts
of unknown problems.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240104142040.2835097-3-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/mballoc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index bc5db22df9fe7..7cbbcee225ddd 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -5955,6 +5955,9 @@ static int ext4_try_to_trim_range(struct super_block *sb,
 	bool set_trimmed = false;
 	void *bitmap;
 
+	if (unlikely(EXT4_MB_GRP_BBITMAP_CORRUPT(e4b->bd_info)))
+		return 0;
+
 	last = ext4_last_grp_cluster(sb, e4b->bd_group);
 	bitmap = e4b->bd_bitmap;
 	if (start == 0 && max >= last)
-- 
2.43.0

[PATCH 5.10 050/151] quota: Remove BUG_ON from dqget()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jan Kara <jack@suse.cz>

[ Upstream commit 249f374eb9b6b969c64212dd860cc1439674c4a8 ]

dqget() checks whether dquot->dq_sb is set when returning it using
BUG_ON. Firstly this doesn't work as an invalidation check for quite
some time (we release dquot with dq_sb set these days), secondly using
BUG_ON is quite harsh. Use WARN_ON_ONCE and check whether dquot is still
hashed instead.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/quota/dquot.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 6a7b7d44753a3..9b8babbd1653c 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -997,9 +997,8 @@ struct dquot *dqget(struct super_block *sb, struct kqid qid)
 	 * smp_mb__before_atomic() in dquot_acquire().
 	 */
 	smp_rmb();
-#ifdef CONFIG_QUOTA_DEBUG
-	BUG_ON(!dquot->dq_sb);	/* Has somebody invalidated entry under us? */
-#endif
+	/* Has somebody invalidated entry under us? */
+	WARN_ON_ONCE(hlist_unhashed(&dquot->dq_hash));
 out:
 	if (empty)
 		do_destroy_dquot(empty);
-- 
2.43.0

[PATCH 5.10 051/151] media: pci: cx23885: check cx23885_vdev_init() return

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

[ Upstream commit 15126b916e39b0cb67026b0af3c014bfeb1f76b3 ]

cx23885_vdev_init() can return a NULL pointer, but that pointer
is used in the next line without a check.

Add a NULL pointer check and go to the error unwind if it is NULL.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: Sicong Huang <huangsicong@iie.ac.cn>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/pci/cx23885/cx23885-video.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/media/pci/cx23885/cx23885-video.c b/drivers/media/pci/cx23885/cx23885-video.c
index 86e3bb5903712..022a9f8e19a2b 100644
--- a/drivers/media/pci/cx23885/cx23885-video.c
+++ b/drivers/media/pci/cx23885/cx23885-video.c
@@ -1353,6 +1353,10 @@ int cx23885_video_register(struct cx23885_dev *dev)
 	/* register Video device */
 	dev->video_dev = cx23885_vdev_init(dev, dev->pci,
 		&cx23885_video_template, "video");
+	if (!dev->video_dev) {
+		err = -ENOMEM;
+		goto fail_unreg;
+	}
 	dev->video_dev->queue = &dev->vb2_vidq;
 	dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
 				      V4L2_CAP_AUDIO | V4L2_CAP_VIDEO_CAPTURE;
@@ -1381,6 +1385,10 @@ int cx23885_video_register(struct cx23885_dev *dev)
 	/* register VBI device */
 	dev->vbi_dev = cx23885_vdev_init(dev, dev->pci,
 		&cx23885_vbi_template, "vbi");
+	if (!dev->vbi_dev) {
+		err = -ENOMEM;
+		goto fail_unreg;
+	}
 	dev->vbi_dev->queue = &dev->vb2_vbiq;
 	dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
 				    V4L2_CAP_AUDIO | V4L2_CAP_VBI_CAPTURE;
-- 
2.43.0

[PATCH 5.10 052/151] fs: binfmt_elf_efpic: dont use missing interpreters properties

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Max Filippov <jcmvbkbc@gmail.com>

[ Upstream commit 15fd1dc3dadb4268207fa6797e753541aca09a2a ]

Static FDPIC executable may get an executable stack even when it has
non-executable GNU_STACK segment. This happens when STACK segment has rw
permissions, but does not specify stack size. In that case FDPIC loader
uses permissions of the interpreter's stack, and for static executables
with no interpreter it results in choosing the arch-default permissions
for the stack.

Fix that by using the interpreter's properties only when the interpreter
is actually used.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Link: https://lore.kernel.org/r/20240118150637.660461-1-jcmvbkbc@gmail.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/binfmt_elf_fdpic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 48bb1290ed2fd..88428de9d873e 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -320,7 +320,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
 	else
 		executable_stack = EXSTACK_DEFAULT;
 
-	if (stack_size == 0) {
+	if (stack_size == 0 && interp_params.flags & ELF_FDPIC_FLAG_PRESENT) {
 		stack_size = interp_params.stack_size;
 		if (interp_params.flags & ELF_FDPIC_FLAG_EXEC_STACK)
 			executable_stack = EXSTACK_ENABLE_X;
-- 
2.43.0

[PATCH 5.10 053/151] scsi: lpfc: Initialize status local variable in lpfc_sli4_repost_sgl_list()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Justin Tee <justin.tee@broadcom.com>

[ Upstream commit 3d0f9342ae200aa1ddc4d6e7a573c6f8f068d994 ]

A static code analyzer tool indicates that the local variable called status
in the lpfc_sli4_repost_sgl_list() routine could be used to print garbage
uninitialized values in the routine's log message.

Fix by initializing to zero.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20240131185112.149731-2-justintee8345@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/lpfc/lpfc_sli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 923ceaba0bf30..84f90f4d5abd8 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -7048,7 +7048,7 @@ lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
 	struct lpfc_sglq *sglq_entry = NULL;
 	struct lpfc_sglq *sglq_entry_next = NULL;
 	struct lpfc_sglq *sglq_entry_first = NULL;
-	int status, total_cnt;
+	int status = 0, total_cnt;
 	int post_cnt = 0, num_posted = 0, block_cnt = 0;
 	int last_xritag = NO_XRI;
 	LIST_HEAD(prep_sgl_list);
-- 
2.43.0

[PATCH 5.10 054/151] net/sun3_82586: Avoid reading past buffer in debug output

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kees Cook <keescook@chromium.org>

[ Upstream commit 4bea747f3fbec33c16d369b2f51e55981d7c78d0 ]

Since NUM_XMIT_BUFFS is always 1, building m68k with sun3_defconfig and
-Warraybounds, this build warning is visible[1]:

drivers/net/ethernet/i825xx/sun3_82586.c: In function 'sun3_82586_timeout':
drivers/net/ethernet/i825xx/sun3_82586.c:990:122: warning: array subscript 1 is above array bounds of 'volatile struct transmit_cmd_struct *[1]' [-Warray-bounds=]
  990 |                 printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
      |                                                                                                               ~~~~~~~~~~~~^~~
...
drivers/net/ethernet/i825xx/sun3_82586.c:156:46: note: while referencing 'xmit_cmds'
  156 |         volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];

Avoid accessing index 1 since it doesn't exist.

Link: https://github.com/KSPP/linux/issues/325 [1]
Cc: Sam Creasey <sammy@sammy.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20240206161651.work.876-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/i825xx/sun3_82586.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/i825xx/sun3_82586.c b/drivers/net/ethernet/i825xx/sun3_82586.c
index 4564ee02c95f6..83a6114afbf90 100644
--- a/drivers/net/ethernet/i825xx/sun3_82586.c
+++ b/drivers/net/ethernet/i825xx/sun3_82586.c
@@ -990,7 +990,7 @@ static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue)
 	{
 #ifdef DEBUG
 		printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
-		printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
+		printk("%s: command-stats: %04x\n", dev->name, swab16(p->xmit_cmds[0]->cmd_status));
 		printk("%s: check, whether you set the right interrupt number!\n",dev->name);
 #endif
 		sun3_82586_close(dev);
-- 
2.43.0

[PATCH 5.10 055/151] drm/lima: set gp bus_stop bit before hard reset

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Erico Nunes <nunes.erico@gmail.com>

[ Upstream commit 27aa58ec85f973d98d336df7b7941149308db80f ]

This is required for reliable hard resets. Otherwise, doing a hard reset
while a task is still running (such as a task which is being stopped by
the drm_sched timeout handler) may result in random mmu write timeouts
or lockups which cause the entire gpu to hang.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240124025947.2110659-5-nunes.erico@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/lima/lima_gp.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/lima/lima_gp.c b/drivers/gpu/drm/lima/lima_gp.c
index ca3842f719842..82071835ec9ed 100644
--- a/drivers/gpu/drm/lima/lima_gp.c
+++ b/drivers/gpu/drm/lima/lima_gp.c
@@ -166,6 +166,11 @@ static void lima_gp_task_run(struct lima_sched_pipe *pipe,
 	gp_write(LIMA_GP_CMD, cmd);
 }
 
+static int lima_gp_bus_stop_poll(struct lima_ip *ip)
+{
+	return !!(gp_read(LIMA_GP_STATUS) & LIMA_GP_STATUS_BUS_STOPPED);
+}
+
 static int lima_gp_hard_reset_poll(struct lima_ip *ip)
 {
 	gp_write(LIMA_GP_PERF_CNT_0_LIMIT, 0xC01A0000);
@@ -179,6 +184,13 @@ static int lima_gp_hard_reset(struct lima_ip *ip)
 
 	gp_write(LIMA_GP_PERF_CNT_0_LIMIT, 0xC0FFE000);
 	gp_write(LIMA_GP_INT_MASK, 0);
+
+	gp_write(LIMA_GP_CMD, LIMA_GP_CMD_STOP_BUS);
+	ret = lima_poll_timeout(ip, lima_gp_bus_stop_poll, 10, 100);
+	if (ret) {
+		dev_err(dev->dev, "%s bus stop timeout\n", lima_ip_name(ip));
+		return ret;
+	}
 	gp_write(LIMA_GP_CMD, LIMA_GP_CMD_RESET);
 	ret = lima_poll_timeout(ip, lima_gp_hard_reset_poll, 10, 100);
 	if (ret) {
-- 
2.43.0

[PATCH 5.10 056/151] virtiofs: forbid newlines in tags

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stefan Hajnoczi <stefanha@redhat.com>

[ Upstream commit 40488cc16f7ea0d193a4e248f0d809c25cc377db ]

Newlines in virtiofs tags are awkward for users and potential vectors
for string injection attacks.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/fuse/virtio_fs.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 7d4655022afc6..c50999ad9f7ab 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -315,6 +315,16 @@ static int virtio_fs_read_tag(struct virtio_device *vdev, struct virtio_fs *fs)
 		return -ENOMEM;
 	memcpy(fs->tag, tag_buf, len);
 	fs->tag[len] = '\0';
+
+	/* While the VIRTIO specification allows any character, newlines are
+	 * awkward on mount(8) command-lines and cause problems in the sysfs
+	 * "tag" attr and uevent TAG= properties. Forbid them.
+	 */
+	if (strchr(fs->tag, '\n')) {
+		dev_dbg(&vdev->dev, "refusing virtiofs tag with newline character\n");
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
-- 
2.43.0

[PATCH 5.10 057/151] netlink: hold nlk->cb_mutex longer in __netlink_dump_start()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit b5590270068c4324dac4a2b5a4a156e02e21339f ]

__netlink_dump_start() releases nlk->cb_mutex right before
calling netlink_dump() which grabs it again.

This seems dangerous, even if KASAN did not bother yet.

Add a @lock_taken parameter to netlink_dump() to let it
grab the mutex if called from netlink_recvmsg() only.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netlink/af_netlink.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index ac3678d2d6d52..4f2a3d46554ff 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -126,7 +126,7 @@ static const char *const nlk_cb_mutex_key_strings[MAX_LINKS + 1] = {
 	"nlk_cb_mutex-MAX_LINKS"
 };
 
-static int netlink_dump(struct sock *sk);
+static int netlink_dump(struct sock *sk, bool lock_taken);
 
 /* nl_table locking explained:
  * Lookup and traversal are protected with an RCU read-side lock. Insertion
@@ -1996,7 +1996,7 @@ static int netlink_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 
 	if (READ_ONCE(nlk->cb_running) &&
 	    atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf / 2) {
-		ret = netlink_dump(sk);
+		ret = netlink_dump(sk, false);
 		if (ret) {
 			sk->sk_err = -ret;
 			sk->sk_error_report(sk);
@@ -2206,7 +2206,7 @@ static int netlink_dump_done(struct netlink_sock *nlk, struct sk_buff *skb,
 	return 0;
 }
 
-static int netlink_dump(struct sock *sk)
+static int netlink_dump(struct sock *sk, bool lock_taken)
 {
 	struct netlink_sock *nlk = nlk_sk(sk);
 	struct netlink_ext_ack extack = {};
@@ -2218,7 +2218,8 @@ static int netlink_dump(struct sock *sk)
 	int alloc_min_size;
 	int alloc_size;
 
-	mutex_lock(nlk->cb_mutex);
+	if (!lock_taken)
+		mutex_lock(nlk->cb_mutex);
 	if (!nlk->cb_running) {
 		err = -EINVAL;
 		goto errout_skb;
@@ -2374,9 +2375,7 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 	WRITE_ONCE(nlk->cb_running, true);
 	nlk->dump_done_errno = INT_MAX;
 
-	mutex_unlock(nlk->cb_mutex);
-
-	ret = netlink_dump(sk);
+	ret = netlink_dump(sk, true);
 
 	sock_put(sk);
 
-- 
2.43.0

[PATCH 5.10 058/151] md: clean up invalid BUG_ON in md_ioctl

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Li Nan <linan122@huawei.com>

[ Upstream commit 9dd8702e7cd28ebf076ff838933f29cf671165ec ]

'disk->private_data' is set to mddev in md_alloc() and never set to NULL,
and users need to open mddev before submitting ioctl. So mddev must not
have been freed during ioctl, and there is no need to check mddev here.
Clean up it.

Signed-off-by: Li Nan <linan122@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240226031444.3606764-4-linan666@huaweicloud.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/md.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index f1f029243e0cb..accf9ac9bb8c0 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7601,11 +7601,6 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
 
 	mddev = bdev->bd_disk->private_data;
 
-	if (!mddev) {
-		BUG();
-		goto out;
-	}
-
 	/* Some actions do not requires the mutex */
 	switch (cmd) {
 	case GET_ARRAY_INFO:
-- 
2.43.0

[PATCH 5.10 059/151] x86: Increase brk randomness entropy for 64-bit systems

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kees Cook <keescook@chromium.org>

[ Upstream commit 44c76825d6eefee9eb7ce06c38e1a6632ac7eb7d ]

In commit c1d171a00294 ("x86: randomize brk"), arch_randomize_brk() was
defined to use a 32MB range (13 bits of entropy), but was never increased
when moving to 64-bit. The default arch_randomize_brk() uses 32MB for
32-bit tasks, and 1GB (18 bits of entropy) for 64-bit tasks.

Update x86_64 to match the entropy used by arm64 and other 64-bit
architectures.

Reported-by: y0un9n132@gmail.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Jiri Kosina <jkosina@suse.com>
Closes: https://lore.kernel.org/linux-hardening/CA+2EKTVLvc8hDZc+2Yhwmus=dzOUG5E4gV7ayCbu0MPJTZzWkw@mail.gmail.com/
Link: https://lore.kernel.org/r/20240217062545.1631668-1-keescook@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/process.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 1cba09a9f1c13..4f731981d3267 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -926,7 +926,10 @@ unsigned long arch_align_stack(unsigned long sp)
 
 unsigned long arch_randomize_brk(struct mm_struct *mm)
 {
-	return randomize_page(mm->brk, 0x02000000);
+	if (mmap_is_ia32())
+		return randomize_page(mm->brk, SZ_32M);
+
+	return randomize_page(mm->brk, SZ_1G);
 }
 
 /*
-- 
2.43.0

[PATCH 5.10 060/151] memory: stm32-fmc2-ebi: check regmap_read return value

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe Kerello <christophe.kerello@foss.st.com>

[ Upstream commit 722463f73bcf65a8c818752a38c14ee672c77da1 ]

Check regmap_read return value to avoid to use uninitialized local
variables.

Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Link: https://lore.kernel.org/r/20240226101428.37791-3-christophe.kerello@foss.st.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/memory/stm32-fmc2-ebi.c | 122 +++++++++++++++++++++++---------
 1 file changed, 88 insertions(+), 34 deletions(-)

diff --git a/drivers/memory/stm32-fmc2-ebi.c b/drivers/memory/stm32-fmc2-ebi.c
index ffec26a99313b..5c387d32c078f 100644
--- a/drivers/memory/stm32-fmc2-ebi.c
+++ b/drivers/memory/stm32-fmc2-ebi.c
@@ -179,8 +179,11 @@ static int stm32_fmc2_ebi_check_mux(struct stm32_fmc2_ebi *ebi,
 				    int cs)
 {
 	u32 bcr;
+	int ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
 
 	if (bcr & FMC2_BCR_MTYP)
 		return 0;
@@ -193,8 +196,11 @@ static int stm32_fmc2_ebi_check_waitcfg(struct stm32_fmc2_ebi *ebi,
 					int cs)
 {
 	u32 bcr, val = FIELD_PREP(FMC2_BCR_MTYP, FMC2_BCR_MTYP_NOR);
+	int ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
 
 	if ((bcr & FMC2_BCR_MTYP) == val && bcr & FMC2_BCR_BURSTEN)
 		return 0;
@@ -207,8 +213,11 @@ static int stm32_fmc2_ebi_check_sync_trans(struct stm32_fmc2_ebi *ebi,
 					   int cs)
 {
 	u32 bcr;
+	int ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
 
 	if (bcr & FMC2_BCR_BURSTEN)
 		return 0;
@@ -221,8 +230,11 @@ static int stm32_fmc2_ebi_check_async_trans(struct stm32_fmc2_ebi *ebi,
 					    int cs)
 {
 	u32 bcr;
+	int ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
 
 	if (!(bcr & FMC2_BCR_BURSTEN) || !(bcr & FMC2_BCR_CBURSTRW))
 		return 0;
@@ -235,8 +247,11 @@ static int stm32_fmc2_ebi_check_cpsize(struct stm32_fmc2_ebi *ebi,
 				       int cs)
 {
 	u32 bcr, val = FIELD_PREP(FMC2_BCR_MTYP, FMC2_BCR_MTYP_PSRAM);
+	int ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
 
 	if ((bcr & FMC2_BCR_MTYP) == val && bcr & FMC2_BCR_BURSTEN)
 		return 0;
@@ -249,12 +264,18 @@ static int stm32_fmc2_ebi_check_address_hold(struct stm32_fmc2_ebi *ebi,
 					     int cs)
 {
 	u32 bcr, bxtr, val = FIELD_PREP(FMC2_BXTR_ACCMOD, FMC2_BXTR_EXTMOD_D);
+	int ret;
+
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
 	if (prop->reg_type == FMC2_REG_BWTR)
-		regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
+		ret = regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
 	else
-		regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+		ret = regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+	if (ret)
+		return ret;
 
 	if ((!(bcr & FMC2_BCR_BURSTEN) || !(bcr & FMC2_BCR_CBURSTRW)) &&
 	    ((bxtr & FMC2_BXTR_ACCMOD) == val || bcr & FMC2_BCR_MUXEN))
@@ -268,12 +289,19 @@ static int stm32_fmc2_ebi_check_clk_period(struct stm32_fmc2_ebi *ebi,
 					   int cs)
 {
 	u32 bcr, bcr1;
+	int ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
-	if (cs)
-		regmap_read(ebi->regmap, FMC2_BCR1, &bcr1);
-	else
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
+
+	if (cs) {
+		ret = regmap_read(ebi->regmap, FMC2_BCR1, &bcr1);
+		if (ret)
+			return ret;
+	} else {
 		bcr1 = bcr;
+	}
 
 	if (bcr & FMC2_BCR_BURSTEN && (!cs || !(bcr1 & FMC2_BCR1_CCLKEN)))
 		return 0;
@@ -305,12 +333,18 @@ static u32 stm32_fmc2_ebi_ns_to_clk_period(struct stm32_fmc2_ebi *ebi,
 {
 	u32 nb_clk_cycles = stm32_fmc2_ebi_ns_to_clock_cycles(ebi, cs, setup);
 	u32 bcr, btr, clk_period;
+	int ret;
+
+	ret = regmap_read(ebi->regmap, FMC2_BCR1, &bcr);
+	if (ret)
+		return ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR1, &bcr);
 	if (bcr & FMC2_BCR1_CCLKEN || !cs)
-		regmap_read(ebi->regmap, FMC2_BTR1, &btr);
+		ret = regmap_read(ebi->regmap, FMC2_BTR1, &btr);
 	else
-		regmap_read(ebi->regmap, FMC2_BTR(cs), &btr);
+		ret = regmap_read(ebi->regmap, FMC2_BTR(cs), &btr);
+	if (ret)
+		return ret;
 
 	clk_period = FIELD_GET(FMC2_BTR_CLKDIV, btr) + 1;
 
@@ -569,11 +603,16 @@ static int stm32_fmc2_ebi_set_address_setup(struct stm32_fmc2_ebi *ebi,
 	if (ret)
 		return ret;
 
-	regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+	if (ret)
+		return ret;
+
 	if (prop->reg_type == FMC2_REG_BWTR)
-		regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
+		ret = regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
 	else
-		regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+		ret = regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+	if (ret)
+		return ret;
 
 	if ((bxtr & FMC2_BXTR_ACCMOD) == val || bcr & FMC2_BCR_MUXEN)
 		val = clamp_val(setup, 1, FMC2_BXTR_ADDSET_MAX);
@@ -691,11 +730,14 @@ static int stm32_fmc2_ebi_set_max_low_pulse(struct stm32_fmc2_ebi *ebi,
 					    int cs, u32 setup)
 {
 	u32 old_val, new_val, pcscntr;
+	int ret;
 
 	if (setup < 1)
 		return 0;
 
-	regmap_read(ebi->regmap, FMC2_PCSCNTR, &pcscntr);
+	ret = regmap_read(ebi->regmap, FMC2_PCSCNTR, &pcscntr);
+	if (ret)
+		return ret;
 
 	/* Enable counter for the bank */
 	regmap_update_bits(ebi->regmap, FMC2_PCSCNTR,
@@ -942,17 +984,20 @@ static void stm32_fmc2_ebi_disable_bank(struct stm32_fmc2_ebi *ebi, int cs)
 	regmap_update_bits(ebi->regmap, FMC2_BCR(cs), FMC2_BCR_MBKEN, 0);
 }
 
-static void stm32_fmc2_ebi_save_setup(struct stm32_fmc2_ebi *ebi)
+static int stm32_fmc2_ebi_save_setup(struct stm32_fmc2_ebi *ebi)
 {
 	unsigned int cs;
+	int ret;
 
 	for (cs = 0; cs < FMC2_MAX_EBI_CE; cs++) {
-		regmap_read(ebi->regmap, FMC2_BCR(cs), &ebi->bcr[cs]);
-		regmap_read(ebi->regmap, FMC2_BTR(cs), &ebi->btr[cs]);
-		regmap_read(ebi->regmap, FMC2_BWTR(cs), &ebi->bwtr[cs]);
+		ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &ebi->bcr[cs]);
+		ret |= regmap_read(ebi->regmap, FMC2_BTR(cs), &ebi->btr[cs]);
+		ret |= regmap_read(ebi->regmap, FMC2_BWTR(cs), &ebi->bwtr[cs]);
+		if (ret)
+			return ret;
 	}
 
-	regmap_read(ebi->regmap, FMC2_PCSCNTR, &ebi->pcscntr);
+	return regmap_read(ebi->regmap, FMC2_PCSCNTR, &ebi->pcscntr);
 }
 
 static void stm32_fmc2_ebi_set_setup(struct stm32_fmc2_ebi *ebi)
@@ -981,22 +1026,29 @@ static void stm32_fmc2_ebi_disable_banks(struct stm32_fmc2_ebi *ebi)
 }
 
 /* NWAIT signal can not be connected to EBI controller and NAND controller */
-static bool stm32_fmc2_ebi_nwait_used_by_ctrls(struct stm32_fmc2_ebi *ebi)
+static int stm32_fmc2_ebi_nwait_used_by_ctrls(struct stm32_fmc2_ebi *ebi)
 {
+	struct device *dev = ebi->dev;
 	unsigned int cs;
 	u32 bcr;
+	int ret;
 
 	for (cs = 0; cs < FMC2_MAX_EBI_CE; cs++) {
 		if (!(ebi->bank_assigned & BIT(cs)))
 			continue;
 
-		regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+		ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+		if (ret)
+			return ret;
+
 		if ((bcr & FMC2_BCR_WAITEN || bcr & FMC2_BCR_ASYNCWAIT) &&
-		    ebi->bank_assigned & BIT(FMC2_NAND))
-			return true;
+		    ebi->bank_assigned & BIT(FMC2_NAND)) {
+			dev_err(dev, "NWAIT signal connected to EBI and NAND controllers\n");
+			return -EINVAL;
+		}
 	}
 
-	return false;
+	return 0;
 }
 
 static void stm32_fmc2_ebi_enable(struct stm32_fmc2_ebi *ebi)
@@ -1083,10 +1135,9 @@ static int stm32_fmc2_ebi_parse_dt(struct stm32_fmc2_ebi *ebi)
 		return -ENODEV;
 	}
 
-	if (stm32_fmc2_ebi_nwait_used_by_ctrls(ebi)) {
-		dev_err(dev, "NWAIT signal connected to EBI and NAND controllers\n");
-		return -EINVAL;
-	}
+	ret = stm32_fmc2_ebi_nwait_used_by_ctrls(ebi);
+	if (ret)
+		return ret;
 
 	stm32_fmc2_ebi_enable(ebi);
 
@@ -1131,7 +1182,10 @@ static int stm32_fmc2_ebi_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_release;
 
-	stm32_fmc2_ebi_save_setup(ebi);
+	ret = stm32_fmc2_ebi_save_setup(ebi);
+	if (ret)
+		goto err_release;
+
 	platform_set_drvdata(pdev, ebi);
 
 	return 0;
-- 
2.43.0

[PATCH 5.10 061/151] parisc: Use irq_enter_rcu() to fix warning at kernel/context_tracking.c:367

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

[ Upstream commit 73cb4a2d8d7e0259f94046116727084f21e4599f ]

Use irq*_rcu() functions to fix this kernel warning:

 WARNING: CPU: 0 PID: 0 at kernel/context_tracking.c:367 ct_irq_enter+0xa0/0xd0
 Modules linked in:
 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.7.0-rc3-64bit+ #1037
 Hardware name: 9000/785/C3700

 IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000412cd758 00000000412cd75c
  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000043c20c20
  CPU:        0   CR30: 0000000041caa000 CR31: 0000000000000000
  ORIG_R28: 0000000000000005
  IAOQ[0]: ct_irq_enter+0xa0/0xd0
  IAOQ[1]: ct_irq_enter+0xa4/0xd0
  RP(r2): irq_enter+0x34/0x68
 Backtrace:
  [<000000004034a3ec>] irq_enter+0x34/0x68
  [<000000004030dc48>] do_cpu_irq_mask+0xc0/0x450
  [<0000000040303070>] intr_return+0x0/0xc

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/parisc/kernel/irq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2762e8540672e..5e3b9be45de92 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -520,7 +520,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 
 	old_regs = set_irq_regs(regs);
 	local_irq_disable();
-	irq_enter();
+	irq_enter_rcu();
 
 	eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu);
 	if (!eirr_val)
@@ -555,7 +555,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 #endif /* CONFIG_IRQSTACKS */
 
  out:
-	irq_exit();
+	irq_exit_rcu();
 	set_irq_regs(old_regs);
 	return;
 
-- 
2.43.0

[PATCH 5.10 062/151] powerpc/boot: Handle allocation failure in simple_realloc()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Li zeming <zeming@nfschina.com>

[ Upstream commit 69b0194ccec033c208b071e019032c1919c2822d ]

simple_malloc() will return NULL when there is not enough memory left.
Check pointer 'new' before using it to copy the old data.

Signed-off-by: Li zeming <zeming@nfschina.com>
[mpe: Reword subject, use change log from Christophe]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20221219021816.3012-1-zeming@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/boot/simple_alloc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/simple_alloc.c b/arch/powerpc/boot/simple_alloc.c
index 65ec135d01579..188c4f996512a 100644
--- a/arch/powerpc/boot/simple_alloc.c
+++ b/arch/powerpc/boot/simple_alloc.c
@@ -114,7 +114,9 @@ static void *simple_realloc(void *ptr, unsigned long size)
 		return ptr;
 
 	new = simple_malloc(size);
-	memcpy(new, ptr, p->size);
+	if (new)
+		memcpy(new, ptr, p->size);
+
 	simple_free(ptr);
 	return new;
 }
-- 
2.43.0

[PATCH 5.10 063/151] powerpc/boot: Only free if realloc() succeeds

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michael Ellerman <mpe@ellerman.id.au>

[ Upstream commit f2d5bccaca3e8c09c9b9c8485375f7bdbb2631d2 ]

simple_realloc() frees the original buffer (ptr) even if the
reallocation failed.

Fix it to behave like standard realloc() and only free the original
buffer if the reallocation succeeded.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240229115149.749264-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/boot/simple_alloc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/boot/simple_alloc.c b/arch/powerpc/boot/simple_alloc.c
index 188c4f996512a..bc99f75b8582d 100644
--- a/arch/powerpc/boot/simple_alloc.c
+++ b/arch/powerpc/boot/simple_alloc.c
@@ -114,10 +114,11 @@ static void *simple_realloc(void *ptr, unsigned long size)
 		return ptr;
 
 	new = simple_malloc(size);
-	if (new)
+	if (new) {
 		memcpy(new, ptr, p->size);
+		simple_free(ptr);
+	}
 
-	simple_free(ptr);
 	return new;
 }
 
-- 
2.43.0

[PATCH 5.10 064/151] btrfs: change BUG_ON to assertion when checking for delayed_node root

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Sterba <dsterba@suse.com>

[ Upstream commit be73f4448b607e6b7ce41cd8ef2214fdf6e7986f ]

The pointer to root is initialized in btrfs_init_delayed_node(), no need
to check for it again. Change the BUG_ON to assertion.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/delayed-inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index cdfc791b3c405..e2afaa70ae5e5 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -986,7 +986,7 @@ static void btrfs_release_delayed_inode(struct btrfs_delayed_node *delayed_node)
 
 	if (delayed_node &&
 	    test_bit(BTRFS_DELAYED_NODE_INODE_DIRTY, &delayed_node->flags)) {
-		BUG_ON(!delayed_node->root);
+		ASSERT(delayed_node->root);
 		clear_bit(BTRFS_DELAYED_NODE_INODE_DIRTY, &delayed_node->flags);
 		delayed_node->count--;
 
-- 
2.43.0

[PATCH 5.10 065/151] btrfs: handle invalid root reference found in may_destroy_subvol()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Sterba <dsterba@suse.com>

[ Upstream commit 6fbc6f4ac1f4907da4fc674251527e7dc79ffbf6 ]

The may_destroy_subvol() looks up a root by a key, allowing to do an
inexact search when key->offset is -1.  It's never expected to find such
item, as it would break the allowed range of a root id.

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/inode.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 1f99d7dced17a..4bf28f74605fd 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3918,7 +3918,14 @@ static noinline int may_destroy_subvol(struct btrfs_root *root)
 	ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);
 	if (ret < 0)
 		goto out;
-	BUG_ON(ret == 0);
+	if (ret == 0) {
+		/*
+		 * Key with offset -1 found, there would have to exist a root
+		 * with such id, but this is out of valid range.
+		 */
+		ret = -EUCLEAN;
+		goto out;
+	}
 
 	ret = 0;
 	if (path->slots[0] > 0) {
-- 
2.43.0

[PATCH 5.10 066/151] btrfs: send: handle unexpected data in header buffer in begin_cmd()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Sterba <dsterba@suse.com>

[ Upstream commit e80e3f732cf53c64b0d811e1581470d67f6c3228 ]

Change BUG_ON to a proper error handling in the unlikely case of seeing
data when the command is started. This is supposed to be reset when the
command is finished (send_cmd, send_encoded_extent).

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/send.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index a5ed01d49f069..a9e72f42e91e0 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -685,7 +685,12 @@ static int begin_cmd(struct send_ctx *sctx, int cmd)
 	if (WARN_ON(!sctx->send_buf))
 		return -EINVAL;
 
-	BUG_ON(sctx->send_size);
+	if (unlikely(sctx->send_size != 0)) {
+		btrfs_err(sctx->send_root->fs_info,
+			  "send: command header buffer not empty cmd %d offset %llu",
+			  cmd, sctx->send_off);
+		return -EINVAL;
+	}
 
 	sctx->send_size += sizeof(*hdr);
 	hdr = (struct btrfs_cmd_header *)sctx->send_buf;
-- 
2.43.0

[PATCH 5.10 067/151] btrfs: delete pointless BUG_ON check on quota root in btrfs_qgroup_account_extent()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Sterba <dsterba@suse.com>

[ Upstream commit f40a3ea94881f668084f68f6b9931486b1606db0 ]

The BUG_ON is deep in the qgroup code where we can expect that it
exists. A NULL pointer would cause a crash.

It was added long ago in 550d7a2ed5db35 ("btrfs: qgroup: Add new qgroup
calculation function btrfs_qgroup_account_extents()."). It maybe made
sense back then as the quota enable/disable state machine was not that
robust as it is nowadays, so we can just delete it.

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/qgroup.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 83d17f22335b1..7518ab3b409c5 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2658,8 +2658,6 @@ int btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, u64 bytenr,
 	if (nr_old_roots == 0 && nr_new_roots == 0)
 		goto out_free;
 
-	BUG_ON(!fs_info->quota_root);
-
 	trace_btrfs_qgroup_account_extent(fs_info, trans->transid, bytenr,
 					num_bytes, nr_old_roots, nr_new_roots);
 
-- 
2.43.0

[PATCH 5.10 068/151] f2fs: fix to do sanity check in update_sit_entry

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhiguo Niu <zhiguo.niu@unisoc.com>

[ Upstream commit 36959d18c3cf09b3c12157c6950e18652067de77 ]

If GET_SEGNO return NULL_SEGNO for some unecpected case,
update_sit_entry will access invalid memory address,
cause system crash. It is better to do sanity check about
GET_SEGNO just like update_segment_mtime & locate_dirty_segment.

Also remove some redundant judgment code.

Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/segment.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 134a78179e6ff..6fcc83637b153 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2215,6 +2215,8 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
 #endif
 
 	segno = GET_SEGNO(sbi, blkaddr);
+	if (segno == NULL_SEGNO)
+		return;
 
 	se = get_seg_entry(sbi, segno);
 	new_vblocks = se->valid_blocks + del;
@@ -3391,8 +3393,7 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 	 * since SSR needs latest valid block information.
 	 */
 	update_sit_entry(sbi, *new_blkaddr, 1);
-	if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO)
-		update_sit_entry(sbi, old_blkaddr, -1);
+	update_sit_entry(sbi, old_blkaddr, -1);
 
 	if (!__has_curseg_space(sbi, curseg)) {
 		if (from_gc)
-- 
2.43.0

[PATCH 5.10 069/151] usb: gadget: fsl: Increase size of name buffer for endpoints

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

[ Upstream commit 87850f6cc20911e35eafcbc1d56b0d649ae9162d ]

This fixes a W=1 warning about sprintf writing up to 16 bytes into a
buffer of size 14. There is no practical relevance because there are not
more than 32 endpoints.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/6754df25c56aae04f8110594fad2cd2452b1862a.1708709120.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/fsl_udc_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index ad6ff9c4188ef..3986e0639f05a 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -2501,7 +2501,7 @@ static int fsl_udc_probe(struct platform_device *pdev)
 	/* setup the udc->eps[] for non-control endpoints and link
 	 * to gadget.ep_list */
 	for (i = 1; i < (int)(udc_controller->max_ep / 2); i++) {
-		char name[14];
+		char name[16];
 
 		sprintf(name, "ep%dout", i);
 		struct_ep_setup(udc_controller, i * 2, name, 1);
-- 
2.43.0

[PATCH 5.10 070/151] Bluetooth: bnep: Fix out-of-bound access

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit 0f0639b4d6f649338ce29c62da3ec0787fa08cd1 ]

This fixes attempting to access past ethhdr.h_source, although it seems
intentional to copy also the contents of h_proto this triggers
out-of-bound access problems with the likes of static analyzer, so this
instead just copy ETH_ALEN and then proceed to use put_unaligned to copy
h_proto separetely.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/bnep/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 09b6d825124ee..f749904272961 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -385,7 +385,8 @@ static int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
 
 	case BNEP_COMPRESSED_DST_ONLY:
 		__skb_put_data(nskb, skb_mac_header(skb), ETH_ALEN);
-		__skb_put_data(nskb, s->eh.h_source, ETH_ALEN + 2);
+		__skb_put_data(nskb, s->eh.h_source, ETH_ALEN);
+		put_unaligned(s->eh.h_proto, (__be16 *)__skb_put(nskb, 2));
 		break;
 
 	case BNEP_GENERAL:
-- 
2.43.0

[PATCH 5.10 071/151] net: hns3: add checking for vf id of mailbox

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jian Shen <shenjian15@huawei.com>

[ Upstream commit 4e2969a0d6a7549bc0bc1ebc990588b622c4443d ]

Add checking for vf id of mailbox, in order to avoid array
out-of-bounds risk.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 51b7b46f2f309..9969714d1133d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -715,10 +715,11 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 		req = (struct hclge_mbx_vf_to_pf_cmd *)desc->data;
 
 		flag = le16_to_cpu(crq->desc[crq->next_to_use].flag);
-		if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B))) {
+		if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B) ||
+			     req->mbx_src_vfid > hdev->num_req_vfs)) {
 			dev_warn(&hdev->pdev->dev,
-				 "dropped invalid mailbox message, code = %u\n",
-				 req->msg.code);
+				 "dropped invalid mailbox message, code = %u, vfid = %u\n",
+				 req->msg.code, req->mbx_src_vfid);
 
 			/* dropping/not processing this invalid message */
 			crq->desc[crq->next_to_use].flag = 0;
-- 
2.43.0

[PATCH 5.10 072/151] nvmet-tcp: do not continue for invalid icreq

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hannes Reinecke <hare@suse.de>

[ Upstream commit 0889d13b9e1cbef49e802ae09f3b516911ad82a1 ]

When the length check for an icreq sqe fails we should not
continue processing but rather return immediately as all
other contents of that sqe cannot be relied on.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/tcp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index d70a2fa4ba45f..e493fc709065a 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -846,6 +846,7 @@ static int nvmet_tcp_handle_icreq(struct nvmet_tcp_queue *queue)
 		pr_err("bad nvme-tcp pdu length (%d)\n",
 			le32_to_cpu(icreq->hdr.plen));
 		nvmet_tcp_fatal_error(queue);
+		return -EPROTO;
 	}
 
 	if (icreq->pfv != NVME_TCP_PFV_1_0) {
-- 
2.43.0

[PATCH 5.10 073/151] NFS: avoid infinite loop in pnfs_update_layout.

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: NeilBrown <neilb@suse.de>

[ Upstream commit 2fdbc20036acda9e5694db74a032d3c605323005 ]

If pnfsd_update_layout() is called on a file for which recovery has
failed it will enter a tight infinite loop.

NFS_LAYOUT_INVALID_STID will be set, nfs4_select_rw_stateid() will
return -EIO, and nfs4_schedule_stateid_recovery() will do nothing, so
nfs4_client_recover_expired_lease() will not wait.  So the code will
loop indefinitely.

Break the loop by testing the validity of the open stateid at the top of
the loop.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/pnfs.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index ed6a3ed83755d..f2da20ce68754 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2000,6 +2000,14 @@ pnfs_update_layout(struct inode *ino,
 	}
 
 lookup_again:
+	if (!nfs4_valid_open_stateid(ctx->state)) {
+		trace_pnfs_update_layout(ino, pos, count,
+					 iomode, lo, lseg,
+					 PNFS_UPDATE_LAYOUT_INVALID_OPEN);
+		lseg = ERR_PTR(-EIO);
+		goto out;
+	}
+
 	lseg = ERR_PTR(nfs4_client_recover_expired_lease(clp));
 	if (IS_ERR(lseg))
 		goto out;
-- 
2.43.0

[PATCH 5.10 074/151] openrisc: Call setup_memory() earlier in the init sequence

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Oreoluwa Babatunde <quic_obabatun@quicinc.com>

[ Upstream commit 7b432bf376c9c198a7ff48f1ed14a14c0ffbe1fe ]

The unflatten_and_copy_device_tree() function contains a call to
memblock_alloc(). This means that memblock is allocating memory before
any of the reserved memory regions are set aside in the setup_memory()
function which calls early_init_fdt_scan_reserved_mem(). Therefore,
there is a possibility for memblock to allocate from any of the
reserved memory regions.

Hence, move the call to setup_memory() to be earlier in the init
sequence so that the reserved memory regions are set aside before any
allocations are done using memblock.

Signed-off-by: Oreoluwa Babatunde <quic_obabatun@quicinc.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/openrisc/kernel/setup.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index c6f9e7b9f7cb2..8c65810eeca24 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -284,6 +284,9 @@ void calibrate_delay(void)
 
 void __init setup_arch(char **cmdline_p)
 {
+	/* setup memblock allocator */
+	setup_memory();
+
 	unflatten_and_copy_device_tree();
 
 	setup_cpuinfo();
@@ -310,9 +313,6 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif
 
-	/* setup memblock allocator */
-	setup_memory();
-
 	/* paging_init() sets up the MMU and marks all pages as reserved */
 	paging_init();
 
-- 
2.43.0

[PATCH 5.10 075/151] s390/iucv: fix receive buffer virtual vs physical address confusion

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Gordeev <agordeev@linux.ibm.com>

[ Upstream commit 4e8477aeb46dfe74e829c06ea588dd00ba20c8cc ]

Fix IUCV_IPBUFLST-type buffers virtual vs physical address confusion.
This does not fix a bug since virtual and physical address spaces are
currently the same.

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/iucv/iucv.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 06770b77e5d22..be5f598acbce2 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -1088,8 +1088,7 @@ static int iucv_message_receive_iprmdata(struct iucv_path *path,
 		size = (size < 8) ? size : 8;
 		for (array = buffer; size > 0; array++) {
 			copy = min_t(size_t, size, array->length);
-			memcpy((u8 *)(addr_t) array->address,
-				rmmsg, copy);
+			memcpy(phys_to_virt(array->address), rmmsg, copy);
 			rmmsg += copy;
 			size -= copy;
 		}
-- 
2.43.0

[PATCH 5.10 076/151] usb: dwc3: core: Skip setting event buffers for host only controllers

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Krishna Kurapati <quic_kriskura@quicinc.com>

[ Upstream commit 89d7f962994604a3e3d480832788d06179abefc5 ]

On some SoC's like SA8295P where the tertiary controller is host-only
capable, GEVTADDRHI/LO, GEVTSIZ, GEVTCOUNT registers are not accessible.
Trying to access them leads to a crash.

For DRD/Peripheral supported controllers, event buffer setup is done
again in gadget_pullup. Skip setup or cleanup of event buffers if
controller is host-only capable.

Suggested-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-4-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/core.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 7275bff857ae8..f4497522f929e 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -430,6 +430,13 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc)
 static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
 {
 	struct dwc3_event_buffer *evt;
+	unsigned int hw_mode;
+
+	hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
+	if (hw_mode == DWC3_GHWPARAMS0_MODE_HOST) {
+		dwc->ev_buf = NULL;
+		return 0;
+	}
 
 	evt = dwc3_alloc_one_event_buffer(dwc, length);
 	if (IS_ERR(evt)) {
@@ -451,6 +458,9 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc)
 {
 	struct dwc3_event_buffer	*evt;
 
+	if (!dwc->ev_buf)
+		return 0;
+
 	evt = dwc->ev_buf;
 	evt->lpos = 0;
 	dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(0),
@@ -468,6 +478,9 @@ void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
 {
 	struct dwc3_event_buffer	*evt;
 
+	if (!dwc->ev_buf)
+		return;
+
 	evt = dwc->ev_buf;
 
 	evt->lpos = 0;
-- 
2.43.0

[PATCH 5.10 077/151] fbdev: offb: replace of_node_put with __free(device_node)

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Abdulrasaq Lawani <abdulrasaqolawani@gmail.com>

[ Upstream commit ce4a7ae84a58b9f33aae8d6c769b3c94f3d5ce76 ]

Replaced instance of of_node_put with __free(device_node)
to simplify code and protect against any memory leaks
due to future changes in the control flow.

Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Abdulrasaq Lawani <abdulrasaqolawani@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/offb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index 4501e848a36f2..766adaf2618c5 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -354,7 +354,7 @@ static void offb_init_palette_hacks(struct fb_info *info, struct device_node *dp
 			par->cmap_type = cmap_gxt2000;
 	} else if (of_node_name_prefix(dp, "vga,Display-")) {
 		/* Look for AVIVO initialized by SLOF */
-		struct device_node *pciparent = of_get_parent(dp);
+		struct device_node *pciparent __free(device_node) = of_get_parent(dp);
 		const u32 *vid, *did;
 		vid = of_get_property(pciparent, "vendor-id", NULL);
 		did = of_get_property(pciparent, "device-id", NULL);
@@ -366,7 +366,6 @@ static void offb_init_palette_hacks(struct fb_info *info, struct device_node *dp
 			if (par->cmap_adr)
 				par->cmap_type = cmap_avivo;
 		}
-		of_node_put(pciparent);
 	} else if (dp && of_device_is_compatible(dp, "qemu,std-vga")) {
 #ifdef __BIG_ENDIAN
 		const __be32 io_of_addr[3] = { 0x01000000, 0x0, 0x0 };
-- 
2.43.0

[PATCH 5.10 078/151] irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Guanrui Huang <guanrui.huang@linux.alibaba.com>

[ Upstream commit 382d2ffe86efb1e2fa803d2cf17e5bfc34e574f3 ]

This BUG_ON() is useless, because the same effect will be obtained
by letting the code run its course and vm being dereferenced,
triggering an exception.

So just remove this check.

Signed-off-by: Guanrui Huang <guanrui.huang@linux.alibaba.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240418061053.96803-3-guanrui.huang@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-gic-v3-its.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 4e486cccc4cc6..a9469751720cc 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -4469,8 +4469,6 @@ static int its_vpe_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
 	struct page *vprop_page;
 	int base, nr_ids, i, err = 0;
 
-	BUG_ON(!vm);
-
 	bitmap = its_lpi_alloc(roundup_pow_of_two(nr_irqs), &base, &nr_ids);
 	if (!bitmap)
 		return -ENOMEM;
-- 
2.43.0

[PATCH 5.10 079/151] ext4: set the type of max_zeroout to unsigned int to avoid overflow

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Baokun Li <libaokun1@huawei.com>

[ Upstream commit 261341a932d9244cbcd372a3659428c8723e5a49 ]

The max_zeroout is of type int and the s_extent_max_zeroout_kb is of
type uint, and the s_extent_max_zeroout_kb can be freely modified via
the sysfs interface. When the block size is 1024, max_zeroout may
overflow, so declare it as unsigned int to avoid overflow.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240319113325.3110393-9-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/extents.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 9e12592727914..f5fa9d542d648 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3399,9 +3399,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 	struct ext4_extent *ex, *abut_ex;
 	ext4_lblk_t ee_block, eof_block;
 	unsigned int ee_len, depth, map_len = map->m_len;
-	int allocated = 0, max_zeroout = 0;
 	int err = 0;
 	int split_flag = EXT4_EXT_DATA_VALID2;
+	int allocated = 0;
+	unsigned int max_zeroout = 0;
 
 	ext_debug(inode, "logical block %llu, max_blocks %u\n",
 		  (unsigned long long)map->m_lblk, map_len);
-- 
2.43.0

[PATCH 5.10 080/151] nvmet-rdma: fix possible bad dereference when freeing rsps

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sagi Grimberg <sagi@grimberg.me>

[ Upstream commit 73964c1d07c054376f1b32a62548571795159148 ]

It is possible that the host connected and saw a cm established
event and started sending nvme capsules on the qp, however the
ctrl did not yet see an established event. This is why the
rsp_wait_list exists (for async handling of these cmds, we move
them to a pending list).

Furthermore, it is possible that the ctrl cm times out, resulting
in a connect-error cm event. in this case we hit a bad deref [1]
because in nvmet_rdma_free_rsps we assume that all the responses
are in the free list.

We are freeing the cmds array anyways, so don't even bother to
remove the rsp from the free_list. It is also guaranteed that we
are not racing anything when we are releasing the queue so no
other context accessing this array should be running.

[1]:
--
Workqueue: nvmet-free-wq nvmet_rdma_free_queue_work [nvmet_rdma]
[...]
pc : nvmet_rdma_free_rsps+0x78/0xb8 [nvmet_rdma]
lr : nvmet_rdma_free_queue_work+0x88/0x120 [nvmet_rdma]
 Call trace:
 nvmet_rdma_free_rsps+0x78/0xb8 [nvmet_rdma]
 nvmet_rdma_free_queue_work+0x88/0x120 [nvmet_rdma]
 process_one_work+0x1ec/0x4a0
 worker_thread+0x48/0x490
 kthread+0x158/0x160
 ret_from_fork+0x10/0x18
--

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/rdma.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 6d5552f2f184a..944e8a2766630 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -472,12 +472,8 @@ nvmet_rdma_alloc_rsps(struct nvmet_rdma_queue *queue)
 	return 0;
 
 out_free:
-	while (--i >= 0) {
-		struct nvmet_rdma_rsp *rsp = &queue->rsps[i];
-
-		list_del(&rsp->free_list);
-		nvmet_rdma_free_rsp(ndev, rsp);
-	}
+	while (--i >= 0)
+		nvmet_rdma_free_rsp(ndev, &queue->rsps[i]);
 	kfree(queue->rsps);
 out:
 	return ret;
@@ -488,12 +484,8 @@ static void nvmet_rdma_free_rsps(struct nvmet_rdma_queue *queue)
 	struct nvmet_rdma_device *ndev = queue->dev;
 	int i, nr_rsps = queue->recv_queue_size * 2;
 
-	for (i = 0; i < nr_rsps; i++) {
-		struct nvmet_rdma_rsp *rsp = &queue->rsps[i];
-
-		list_del(&rsp->free_list);
-		nvmet_rdma_free_rsp(ndev, rsp);
-	}
+	for (i = 0; i < nr_rsps; i++)
+		nvmet_rdma_free_rsp(ndev, &queue->rsps[i]);
 	kfree(queue->rsps);
 }
 
-- 
2.43.0

[PATCH 5.10 081/151] hrtimer: Prevent queuing of hrtimer without a function callback

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Phil Chang <phil.chang@mediatek.com>

[ Upstream commit 5a830bbce3af16833fe0092dec47b6dd30279825 ]

The hrtimer function callback must not be NULL. It has to be specified by
the call side but it is not validated by the hrtimer code. When a hrtimer
is queued without a function callback, the kernel crashes with a null
pointer dereference when trying to execute the callback in __run_hrtimer().

Introduce a validation before queuing the hrtimer in
hrtimer_start_range_ns().

[anna-maria: Rephrase commit message]

Signed-off-by: Phil Chang <phil.chang@mediatek.com>
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/time/hrtimer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 2b2a6e29219dc..16f1e747c5673 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1182,6 +1182,8 @@ void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
 	struct hrtimer_clock_base *base;
 	unsigned long flags;
 
+	if (WARN_ON_ONCE(!timer->function))
+		return;
 	/*
 	 * Check whether the HRTIMER_MODE_SOFT bit and hrtimer.is_soft
 	 * match on CONFIG_PREEMPT_RT = n. With PREEMPT_RT check the hard
-- 
2.43.0

[PATCH 5.10 082/151] gtp: pull network headers in gtp_dev_xmit()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>

commit 3a3be7ff9224f424e485287b54be00d2c6bd9c40 upstream.

syzbot/KMSAN reported use of uninit-value in get_dev_xmit() [1]

We must make sure the IPv4 or Ipv6 header is pulled in skb->head
before accessing fields in them.

Use pskb_inet_may_pull() to fix this issue.

[1]
BUG: KMSAN: uninit-value in ipv6_pdp_find drivers/net/gtp.c:220 [inline]
 BUG: KMSAN: uninit-value in gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline]
 BUG: KMSAN: uninit-value in gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281
  ipv6_pdp_find drivers/net/gtp.c:220 [inline]
  gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline]
  gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281
  __netdev_start_xmit include/linux/netdevice.h:4913 [inline]
  netdev_start_xmit include/linux/netdevice.h:4922 [inline]
  xmit_one net/core/dev.c:3580 [inline]
  dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3596
  __dev_queue_xmit+0x358c/0x5610 net/core/dev.c:4423
  dev_queue_xmit include/linux/netdevice.h:3105 [inline]
  packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276
  packet_snd net/packet/af_packet.c:3145 [inline]
  packet_sendmsg+0x90e3/0xa3a0 net/packet/af_packet.c:3177
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x30f/0x380 net/socket.c:745
  __sys_sendto+0x685/0x830 net/socket.c:2204
  __do_sys_sendto net/socket.c:2216 [inline]
  __se_sys_sendto net/socket.c:2212 [inline]
  __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212
  x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
  slab_post_alloc_hook mm/slub.c:3994 [inline]
  slab_alloc_node mm/slub.c:4037 [inline]
  kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4080
  kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:583
  __alloc_skb+0x363/0x7b0 net/core/skbuff.c:674
  alloc_skb include/linux/skbuff.h:1320 [inline]
  alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6526
  sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2815
  packet_alloc_skb net/packet/af_packet.c:2994 [inline]
  packet_snd net/packet/af_packet.c:3088 [inline]
  packet_sendmsg+0x749c/0xa3a0 net/packet/af_packet.c:3177
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x30f/0x380 net/socket.c:745
  __sys_sendto+0x685/0x830 net/socket.c:2204
  __do_sys_sendto net/socket.c:2216 [inline]
  __se_sys_sendto net/socket.c:2212 [inline]
  __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212
  x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 7115 Comm: syz.1.515 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024

Fixes: 999cb275c807 ("gtp: add IPv6 support")
Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Harald Welte <laforge@gnumonks.org>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20240808132455.3413916-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/gtp.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -567,6 +567,9 @@ static netdev_tx_t gtp_dev_xmit(struct s
 	if (skb_cow_head(skb, dev->needed_headroom))
 		goto tx_err;
 
+	if (!pskb_inet_may_pull(skb))
+		goto tx_err;
+
 	skb_reset_inner_headers(skb);
 
 	/* PDP context lookups in gtp_build_skb_*() need rcu read-side lock. */

[PATCH 5.10 083/151] block: use "unsigned long" for blk_validate_block_size().

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>

commit 37ae5a0f5287a52cf51242e76ccf198d02ffe495 upstream.

Since lo_simple_ioctl(LOOP_SET_BLOCK_SIZE) and ioctl(NBD_SET_BLKSIZE) pass
user-controlled "unsigned long arg" to blk_validate_block_size(),
"unsigned long" should be used for validation.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/9ecbf057-4375-c2db-ab53-e4cc0dff953d@i-love.sakura.ne.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: David Hunter <david.hunter.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/blkdev.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -59,7 +59,7 @@ struct blk_keyslot_manager;
  */
 #define BLKCG_MAX_POLS		5
 
-static inline int blk_validate_block_size(unsigned int bsize)
+static inline int blk_validate_block_size(unsigned long bsize)
 {
 	if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
 		return -EINVAL;

[PATCH 5.10 084/151] media: solo6x10: replace max(a, min(b, c)) by clamp(b, a, c)

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aurelien Jarno <aurelien@aurel32.net>

commit 31e97d7c9ae3de072d7b424b2cf706a03ec10720 upstream.

This patch replaces max(a, min(b, c)) by clamp(b, a, c) in the solo6x10
driver.  This improves the readability and more importantly, for the
solo6x10-p2m.c file, this reduces on my system (x86-64, gcc 13):

 - the preprocessed size from 121 MiB to 4.5 MiB;

 - the build CPU time from 46.8 s to 1.6 s;

 - the build memory from 2786 MiB to 98MiB.

In fine, this allows this relatively simple C file to be built on a
32-bit system.

Reported-by: Jiri Slaby <jirislaby@gmail.com>
Closes: https://lore.kernel.org/lkml/18c6df0d-45ed-450c-9eda-95160a2bbb8e@gmail.com/
Cc:  <stable@vger.kernel.org> # v6.7+
Suggested-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: David Laight <David.Laight@ACULAB.COM>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/pci/solo6x10/solo6x10-offsets.h |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/drivers/media/pci/solo6x10/solo6x10-offsets.h
+++ b/drivers/media/pci/solo6x10/solo6x10-offsets.h
@@ -57,16 +57,16 @@
 #define SOLO_MP4E_EXT_ADDR(__solo) \
 	(SOLO_EREF_EXT_ADDR(__solo) + SOLO_EREF_EXT_AREA(__solo))
 #define SOLO_MP4E_EXT_SIZE(__solo) \
-	max((__solo->nr_chans * 0x00080000),				\
-	    min(((__solo->sdram_size - SOLO_MP4E_EXT_ADDR(__solo)) -	\
-		 __SOLO_JPEG_MIN_SIZE(__solo)), 0x00ff0000))
+	clamp(__solo->sdram_size - SOLO_MP4E_EXT_ADDR(__solo) -	\
+	      __SOLO_JPEG_MIN_SIZE(__solo),			\
+	      __solo->nr_chans * 0x00080000, 0x00ff0000)
 
 #define __SOLO_JPEG_MIN_SIZE(__solo)		(__solo->nr_chans * 0x00080000)
 #define SOLO_JPEG_EXT_ADDR(__solo) \
 		(SOLO_MP4E_EXT_ADDR(__solo) + SOLO_MP4E_EXT_SIZE(__solo))
 #define SOLO_JPEG_EXT_SIZE(__solo) \
-	max(__SOLO_JPEG_MIN_SIZE(__solo),				\
-	    min((__solo->sdram_size - SOLO_JPEG_EXT_ADDR(__solo)), 0x00ff0000))
+	clamp(__solo->sdram_size - SOLO_JPEG_EXT_ADDR(__solo),	\
+	      __SOLO_JPEG_MIN_SIZE(__solo), 0x00ff0000)
 
 #define SOLO_SDRAM_END(__solo) \
 	(SOLO_JPEG_EXT_ADDR(__solo) + SOLO_JPEG_EXT_SIZE(__solo))

[PATCH 5.10 085/151] dm suspend: return -ERESTARTSYS instead of -EINTR

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mikulas Patocka <mpatocka@redhat.com>

[ Upstream commit 1e1fd567d32fcf7544c6e09e0e5bc6c650da6e23 ]

This commit changes device mapper, so that it returns -ERESTARTSYS
instead of -EINTR when it is interrupted by a signal (so that the ioctl
can be restarted).

The manpage signal(7) says that the ioctl function should be restarted if
the signal was handled with SA_RESTART.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index dc8498b4b5c13..b56ea42ab7d2b 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2343,7 +2343,7 @@ static int dm_wait_for_bios_completion(struct mapped_device *md, long task_state
 			break;
 
 		if (signal_pending_state(task_state, current)) {
-			r = -EINTR;
+			r = -ERESTARTSYS;
 			break;
 		}
 
@@ -2368,7 +2368,7 @@ static int dm_wait_for_completion(struct mapped_device *md, long task_state)
 			break;
 
 		if (signal_pending_state(task_state, current)) {
-			r = -EINTR;
+			r = -ERESTARTSYS;
 			break;
 		}
 
-- 
2.43.0

[PATCH 5.10 086/151] Bluetooth: hci_core: Fix LE quote calculation

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit 932021a11805b9da4bd6abf66fe233cccd59fe0e ]

Function hci_sched_le needs to update the respective counter variable
inplace other the likes of hci_quote_sent would attempt to use the
possible outdated value of conn->{le_cnt,acl_cnt}.

Link: https://github.com/bluez/bluez/issues/915
Fixes: 73d80deb7bdf ("Bluetooth: prioritizing data over HCI")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_core.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index c8c1cd55c0eb0..9787a4c551138 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -4685,19 +4685,19 @@ static void hci_sched_le(struct hci_dev *hdev)
 {
 	struct hci_chan *chan;
 	struct sk_buff *skb;
-	int quote, cnt, tmp;
+	int quote, *cnt, tmp;
 
 	BT_DBG("%s", hdev->name);
 
 	if (!hci_conn_num(hdev, LE_LINK))
 		return;
 
-	cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt;
+	cnt = hdev->le_pkts ? &hdev->le_cnt : &hdev->acl_cnt;
 
-	__check_timeout(hdev, cnt, LE_LINK);
+	__check_timeout(hdev, *cnt, LE_LINK);
 
-	tmp = cnt;
-	while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, &quote))) {
+	tmp = *cnt;
+	while (*cnt && (chan = hci_chan_sent(hdev, LE_LINK, &quote))) {
 		u32 priority = (skb_peek(&chan->data_q))->priority;
 		while (quote-- && (skb = skb_peek(&chan->data_q))) {
 			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
@@ -4712,7 +4712,7 @@ static void hci_sched_le(struct hci_dev *hdev)
 			hci_send_frame(hdev, skb);
 			hdev->le_last_tx = jiffies;
 
-			cnt--;
+			(*cnt)--;
 			chan->sent++;
 			chan->conn->sent++;
 
@@ -4722,12 +4722,7 @@ static void hci_sched_le(struct hci_dev *hdev)
 		}
 	}
 
-	if (hdev->le_pkts)
-		hdev->le_cnt = cnt;
-	else
-		hdev->acl_cnt = cnt;
-
-	if (cnt != tmp)
+	if (*cnt != tmp)
 		hci_prio_recalculate(hdev, LE_LINK);
 }
 
-- 
2.43.0

[PATCH 5.10 087/151] Bluetooth: SMP: Fix assumption of Central always being Initiator

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit 28cd47f75185c4818b0fb1b46f2f02faaba96376 ]

SMP initiator role shall be considered the one that initiates the
pairing procedure with SMP_CMD_PAIRING_REQ:

BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 3, Part H
page 1557:

Figure 2.1: LE pairing phases

Note that by sending SMP_CMD_SECURITY_REQ it doesn't change the role to
be Initiator.

Link: https://github.com/bluez/bluez/issues/567
Fixes: b28b4943660f ("Bluetooth: Add strict checks for allowed SMP PDUs")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/smp.c | 144 ++++++++++++++++++++++----------------------
 1 file changed, 72 insertions(+), 72 deletions(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 27381e7425a8f..20cae8f768762 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -914,7 +914,7 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
 	 * Confirms and the responder Enters the passkey.
 	 */
 	if (smp->method == OVERLAP) {
-		if (hcon->role == HCI_ROLE_MASTER)
+		if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 			smp->method = CFM_PASSKEY;
 		else
 			smp->method = REQ_PASSKEY;
@@ -964,7 +964,7 @@ static u8 smp_confirm(struct smp_chan *smp)
 
 	smp_send_cmd(smp->conn, SMP_CMD_PAIRING_CONFIRM, sizeof(cp), &cp);
 
-	if (conn->hcon->out)
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_CONFIRM);
 	else
 		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);
@@ -980,7 +980,8 @@ static u8 smp_random(struct smp_chan *smp)
 	int ret;
 
 	bt_dev_dbg(conn->hcon->hdev, "conn %p %s", conn,
-		   conn->hcon->out ? "initiator" : "responder");
+		   test_bit(SMP_FLAG_INITIATOR, &smp->flags) ? "initiator" :
+		   "responder");
 
 	ret = smp_c1(smp->tk, smp->rrnd, smp->preq, smp->prsp,
 		     hcon->init_addr_type, &hcon->init_addr,
@@ -994,7 +995,7 @@ static u8 smp_random(struct smp_chan *smp)
 		return SMP_CONFIRM_FAILED;
 	}
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		u8 stk[16];
 		__le64 rand = 0;
 		__le16 ediv = 0;
@@ -1251,14 +1252,15 @@ static void smp_distribute_keys(struct smp_chan *smp)
 	rsp = (void *) &smp->prsp[1];
 
 	/* The responder sends its keys first */
-	if (hcon->out && (smp->remote_key_dist & KEY_DIST_MASK)) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags) &&
+	    (smp->remote_key_dist & KEY_DIST_MASK)) {
 		smp_allow_key_dist(smp);
 		return;
 	}
 
 	req = (void *) &smp->preq[1];
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		keydist = &rsp->init_key_dist;
 		*keydist &= req->init_key_dist;
 	} else {
@@ -1427,7 +1429,7 @@ static int sc_mackey_and_ltk(struct smp_chan *smp, u8 mackey[16], u8 ltk[16])
 	struct hci_conn *hcon = smp->conn->hcon;
 	u8 *na, *nb, a[7], b[7];
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		na   = smp->prnd;
 		nb   = smp->rrnd;
 	} else {
@@ -1455,7 +1457,7 @@ static void sc_dhkey_check(struct smp_chan *smp)
 	a[6] = hcon->init_addr_type;
 	b[6] = hcon->resp_addr_type;
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		local_addr = a;
 		remote_addr = b;
 		memcpy(io_cap, &smp->preq[1], 3);
@@ -1534,7 +1536,7 @@ static u8 sc_passkey_round(struct smp_chan *smp, u8 smp_op)
 		/* The round is only complete when the initiator
 		 * receives pairing random.
 		 */
-		if (!hcon->out) {
+		if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 			smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
 				     sizeof(smp->prnd), smp->prnd);
 			if (smp->passkey_round == 20)
@@ -1562,7 +1564,7 @@ static u8 sc_passkey_round(struct smp_chan *smp, u8 smp_op)
 
 		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);
 
-		if (hcon->out) {
+		if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 			smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
 				     sizeof(smp->prnd), smp->prnd);
 			return 0;
@@ -1573,7 +1575,7 @@ static u8 sc_passkey_round(struct smp_chan *smp, u8 smp_op)
 	case SMP_CMD_PUBLIC_KEY:
 	default:
 		/* Initiating device starts the round */
-		if (!hcon->out)
+		if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 			return 0;
 
 		bt_dev_dbg(hdev, "Starting passkey round %u",
@@ -1618,7 +1620,7 @@ static int sc_user_reply(struct smp_chan *smp, u16 mgmt_op, __le32 passkey)
 	}
 
 	/* Initiator sends DHKey check first */
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		sc_dhkey_check(smp);
 		SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
 	} else if (test_and_clear_bit(SMP_FLAG_DHKEY_PENDING, &smp->flags)) {
@@ -1741,7 +1743,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
 	struct smp_cmd_pairing rsp, *req = (void *) skb->data;
 	struct l2cap_chan *chan = conn->smp;
 	struct hci_dev *hdev = conn->hcon->hdev;
-	struct smp_chan *smp;
+	struct smp_chan *smp = chan->data;
 	u8 key_size, auth, sec_level;
 	int ret;
 
@@ -1750,16 +1752,14 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
 	if (skb->len < sizeof(*req))
 		return SMP_INVALID_PARAMS;
 
-	if (conn->hcon->role != HCI_ROLE_SLAVE)
+	if (smp && test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 		return SMP_CMD_NOTSUPP;
 
-	if (!chan->data)
+	if (!smp) {
 		smp = smp_chan_create(conn);
-	else
-		smp = chan->data;
-
-	if (!smp)
-		return SMP_UNSPECIFIED;
+		if (!smp)
+			return SMP_UNSPECIFIED;
+	}
 
 	/* We didn't start the pairing, so match remote */
 	auth = req->auth_req & AUTH_REQ_MASK(hdev);
@@ -1941,7 +1941,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
 	if (skb->len < sizeof(*rsp))
 		return SMP_INVALID_PARAMS;
 
-	if (conn->hcon->role != HCI_ROLE_MASTER)
+	if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 		return SMP_CMD_NOTSUPP;
 
 	skb_pull(skb, sizeof(*rsp));
@@ -2036,7 +2036,7 @@ static u8 sc_check_confirm(struct smp_chan *smp)
 	if (smp->method == REQ_PASSKEY || smp->method == DSP_PASSKEY)
 		return sc_passkey_round(smp, SMP_CMD_PAIRING_CONFIRM);
 
-	if (conn->hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd),
 			     smp->prnd);
 		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);
@@ -2058,7 +2058,7 @@ static int fixup_sc_false_positive(struct smp_chan *smp)
 	u8 auth;
 
 	/* The issue is only observed when we're in responder role */
-	if (hcon->out)
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 		return SMP_UNSPECIFIED;
 
 	if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
@@ -2094,7 +2094,8 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
 	struct hci_dev *hdev = hcon->hdev;
 
 	bt_dev_dbg(hdev, "conn %p %s", conn,
-		   hcon->out ? "initiator" : "responder");
+		   test_bit(SMP_FLAG_INITIATOR, &smp->flags) ? "initiator" :
+		   "responder");
 
 	if (skb->len < sizeof(smp->pcnf))
 		return SMP_INVALID_PARAMS;
@@ -2116,7 +2117,7 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
 			return ret;
 	}
 
-	if (conn->hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd),
 			     smp->prnd);
 		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);
@@ -2151,7 +2152,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 	if (!test_bit(SMP_FLAG_SC, &smp->flags))
 		return smp_random(smp);
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		pkax = smp->local_pk;
 		pkbx = smp->remote_pk;
 		na   = smp->prnd;
@@ -2164,7 +2165,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 	}
 
 	if (smp->method == REQ_OOB) {
-		if (!hcon->out)
+		if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 			smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
 				     sizeof(smp->prnd), smp->prnd);
 		SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
@@ -2175,7 +2176,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 	if (smp->method == REQ_PASSKEY || smp->method == DSP_PASSKEY)
 		return sc_passkey_round(smp, SMP_CMD_PAIRING_RANDOM);
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		u8 cfm[16];
 
 		err = smp_f4(smp->tfm_cmac, smp->remote_pk, smp->local_pk,
@@ -2216,7 +2217,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 		return SMP_UNSPECIFIED;
 
 	if (smp->method == REQ_OOB) {
-		if (hcon->out) {
+		if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 			sc_dhkey_check(smp);
 			SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
 		}
@@ -2290,10 +2291,27 @@ bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level,
 	return false;
 }
 
+static void smp_send_pairing_req(struct smp_chan *smp, __u8 auth)
+{
+	struct smp_cmd_pairing cp;
+
+	if (smp->conn->hcon->type == ACL_LINK)
+		build_bredr_pairing_cmd(smp, &cp, NULL);
+	else
+		build_pairing_cmd(smp->conn, &cp, NULL, auth);
+
+	smp->preq[0] = SMP_CMD_PAIRING_REQ;
+	memcpy(&smp->preq[1], &cp, sizeof(cp));
+
+	smp_send_cmd(smp->conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
+	SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
+
+	set_bit(SMP_FLAG_INITIATOR, &smp->flags);
+}
+
 static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
 {
 	struct smp_cmd_security_req *rp = (void *) skb->data;
-	struct smp_cmd_pairing cp;
 	struct hci_conn *hcon = conn->hcon;
 	struct hci_dev *hdev = hcon->hdev;
 	struct smp_chan *smp;
@@ -2342,16 +2360,20 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	skb_pull(skb, sizeof(*rp));
 
-	memset(&cp, 0, sizeof(cp));
-	build_pairing_cmd(conn, &cp, NULL, auth);
+	smp_send_pairing_req(smp, auth);
 
-	smp->preq[0] = SMP_CMD_PAIRING_REQ;
-	memcpy(&smp->preq[1], &cp, sizeof(cp));
+	return 0;
+}
 
-	smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
-	SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
+static void smp_send_security_req(struct smp_chan *smp, __u8 auth)
+{
+	struct smp_cmd_security_req cp;
 
-	return 0;
+	cp.auth_req = auth;
+	smp_send_cmd(smp->conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
+	SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_REQ);
+
+	clear_bit(SMP_FLAG_INITIATOR, &smp->flags);
 }
 
 int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
@@ -2422,23 +2444,11 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
 			authreq |= SMP_AUTH_MITM;
 	}
 
-	if (hcon->role == HCI_ROLE_MASTER) {
-		struct smp_cmd_pairing cp;
-
-		build_pairing_cmd(conn, &cp, NULL, authreq);
-		smp->preq[0] = SMP_CMD_PAIRING_REQ;
-		memcpy(&smp->preq[1], &cp, sizeof(cp));
-
-		smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
-		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
-	} else {
-		struct smp_cmd_security_req cp;
-		cp.auth_req = authreq;
-		smp_send_cmd(conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
-		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_REQ);
-	}
+	if (hcon->role == HCI_ROLE_MASTER)
+		smp_send_pairing_req(smp, authreq);
+	else
+		smp_send_security_req(smp, authreq);
 
-	set_bit(SMP_FLAG_INITIATOR, &smp->flags);
 	ret = 0;
 
 unlock:
@@ -2689,8 +2699,6 @@ static int smp_cmd_sign_info(struct l2cap_conn *conn, struct sk_buff *skb)
 
 static u8 sc_select_method(struct smp_chan *smp)
 {
-	struct l2cap_conn *conn = smp->conn;
-	struct hci_conn *hcon = conn->hcon;
 	struct smp_cmd_pairing *local, *remote;
 	u8 local_mitm, remote_mitm, local_io, remote_io, method;
 
@@ -2703,7 +2711,7 @@ static u8 sc_select_method(struct smp_chan *smp)
 	 * the "struct smp_cmd_pairing" from them we need to skip the
 	 * first byte which contains the opcode.
 	 */
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		local = (void *) &smp->preq[1];
 		remote = (void *) &smp->prsp[1];
 	} else {
@@ -2772,7 +2780,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
 	/* Non-initiating device sends its public key after receiving
 	 * the key from the initiating device.
 	 */
-	if (!hcon->out) {
+	if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		err = sc_send_public_key(smp);
 		if (err)
 			return err;
@@ -2834,7 +2842,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
 	}
 
 	if (smp->method == REQ_OOB) {
-		if (hcon->out)
+		if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 			smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
 				     sizeof(smp->prnd), smp->prnd);
 
@@ -2843,7 +2851,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
 		return 0;
 	}
 
-	if (hcon->out)
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 		SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_CONFIRM);
 
 	if (smp->method == REQ_PASSKEY) {
@@ -2858,7 +2866,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
 	/* The Initiating device waits for the non-initiating device to
 	 * send the confirm value.
 	 */
-	if (conn->hcon->out)
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 		return 0;
 
 	err = smp_f4(smp->tfm_cmac, smp->local_pk, smp->remote_pk, smp->prnd,
@@ -2892,7 +2900,7 @@ static int smp_cmd_dhkey_check(struct l2cap_conn *conn, struct sk_buff *skb)
 	a[6] = hcon->init_addr_type;
 	b[6] = hcon->resp_addr_type;
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		local_addr = a;
 		remote_addr = b;
 		memcpy(io_cap, &smp->prsp[1], 3);
@@ -2917,7 +2925,7 @@ static int smp_cmd_dhkey_check(struct l2cap_conn *conn, struct sk_buff *skb)
 	if (crypto_memneq(check->e, e, 16))
 		return SMP_DHKEY_CHECK_FAILED;
 
-	if (!hcon->out) {
+	if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		if (test_bit(SMP_FLAG_WAIT_USER, &smp->flags)) {
 			set_bit(SMP_FLAG_DHKEY_PENDING, &smp->flags);
 			return 0;
@@ -2929,7 +2937,7 @@ static int smp_cmd_dhkey_check(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	sc_add_ltk(smp);
 
-	if (hcon->out) {
+	if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
 		hci_le_start_enc(hcon, 0, 0, smp->tk, smp->enc_key_size);
 		hcon->enc_key_size = smp->enc_key_size;
 	}
@@ -3078,7 +3086,6 @@ static void bredr_pairing(struct l2cap_chan *chan)
 	struct l2cap_conn *conn = chan->conn;
 	struct hci_conn *hcon = conn->hcon;
 	struct hci_dev *hdev = hcon->hdev;
-	struct smp_cmd_pairing req;
 	struct smp_chan *smp;
 
 	bt_dev_dbg(hdev, "chan %p", chan);
@@ -3130,14 +3137,7 @@ static void bredr_pairing(struct l2cap_chan *chan)
 
 	bt_dev_dbg(hdev, "starting SMP over BR/EDR");
 
-	/* Prepare and send the BR/EDR SMP Pairing Request */
-	build_bredr_pairing_cmd(smp, &req, NULL);
-
-	smp->preq[0] = SMP_CMD_PAIRING_REQ;
-	memcpy(&smp->preq[1], &req, sizeof(req));
-
-	smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(req), &req);
-	SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
+	smp_send_pairing_req(smp, 0x00);
 }
 
 static void smp_resume_cb(struct l2cap_chan *chan)
-- 
2.43.0

[PATCH 5.10 088/151] tc-testing: dont access non-existent variable on exception

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Simon Horman <horms@kernel.org>

[ Upstream commit a0c9fe5eecc97680323ee83780ea3eaf440ba1b7 ]

Since commit 255c1c7279ab ("tc-testing: Allow test cases to be skipped")
the variable test_ordinal doesn't exist in call_pre_case().
So it should not be accessed when an exception occurs.

This resolves the following splat:

  ...
  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File ".../tdc.py", line 1028, in <module>
      main()
    File ".../tdc.py", line 1022, in main
      set_operation_mode(pm, parser, args, remaining)
    File ".../tdc.py", line 966, in set_operation_mode
      catresults = test_runner_serial(pm, args, alltests)
    File ".../tdc.py", line 642, in test_runner_serial
      (index, tsr) = test_runner(pm, args, alltests)
    File ".../tdc.py", line 536, in test_runner
      res = run_one_test(pm, args, index, tidx)
    File ".../tdc.py", line 419, in run_one_test
      pm.call_pre_case(tidx)
    File ".../tdc.py", line 146, in call_pre_case
      print('test_ordinal is {}'.format(test_ordinal))
  NameError: name 'test_ordinal' is not defined

Fixes: 255c1c7279ab ("tc-testing: Allow test cases to be skipped")
Signed-off-by: Simon Horman <horms@kernel.org>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20240815-tdc-test-ordinal-v1-1-0255c122a427@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/tc-testing/tdc.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/testing/selftests/tc-testing/tdc.py b/tools/testing/selftests/tc-testing/tdc.py
index a3e43189d9400..d6a9d97f73c24 100755
--- a/tools/testing/selftests/tc-testing/tdc.py
+++ b/tools/testing/selftests/tc-testing/tdc.py
@@ -129,7 +129,6 @@ class PluginMgr:
             except Exception as ee:
                 print('exception {} in call to pre_case for {} plugin'.
                       format(ee, pgn_inst.__class__))
-                print('test_ordinal is {}'.format(test_ordinal))
                 print('testid is {}'.format(caseinfo['id']))
                 raise
 
-- 
2.43.0

[PATCH 5.10 089/151] kcm: Serialise kcm_sendmsg() for the same socket.

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kuniyuki Iwashima <kuniyu@amazon.com>

[ Upstream commit 807067bf014d4a3ae2cc55bd3de16f22a01eb580 ]

syzkaller reported UAF in kcm_release(). [0]

The scenario is

  1. Thread A builds a skb with MSG_MORE and sets kcm->seq_skb.

  2. Thread A resumes building skb from kcm->seq_skb but is blocked
     by sk_stream_wait_memory()

  3. Thread B calls sendmsg() concurrently, finishes building kcm->seq_skb
     and puts the skb to the write queue

  4. Thread A faces an error and finally frees skb that is already in the
     write queue

  5. kcm_release() does double-free the skb in the write queue

When a thread is building a MSG_MORE skb, another thread must not touch it.

Let's add a per-sk mutex and serialise kcm_sendmsg().

[0]:
BUG: KASAN: slab-use-after-free in __skb_unlink include/linux/skbuff.h:2366 [inline]
BUG: KASAN: slab-use-after-free in __skb_dequeue include/linux/skbuff.h:2385 [inline]
BUG: KASAN: slab-use-after-free in __skb_queue_purge_reason include/linux/skbuff.h:3175 [inline]
BUG: KASAN: slab-use-after-free in __skb_queue_purge include/linux/skbuff.h:3181 [inline]
BUG: KASAN: slab-use-after-free in kcm_release+0x170/0x4c8 net/kcm/kcmsock.c:1691
Read of size 8 at addr ffff0000ced0fc80 by task syz-executor329/6167

CPU: 1 PID: 6167 Comm: syz-executor329 Tainted: G    B              6.8.0-rc5-syzkaller-g9abbc24128bc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x178/0x518 mm/kasan/report.c:488
 kasan_report+0xd8/0x138 mm/kasan/report.c:601
 __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381
 __skb_unlink include/linux/skbuff.h:2366 [inline]
 __skb_dequeue include/linux/skbuff.h:2385 [inline]
 __skb_queue_purge_reason include/linux/skbuff.h:3175 [inline]
 __skb_queue_purge include/linux/skbuff.h:3181 [inline]
 kcm_release+0x170/0x4c8 net/kcm/kcmsock.c:1691
 __sock_release net/socket.c:659 [inline]
 sock_close+0xa4/0x1e8 net/socket.c:1421
 __fput+0x30c/0x738 fs/file_table.c:376
 ____fput+0x20/0x30 fs/file_table.c:404
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x618/0x1f64 kernel/exit.c:871
 do_group_exit+0x194/0x22c kernel/exit.c:1020
 get_signal+0x1500/0x15ec kernel/signal.c:2893
 do_signal+0x23c/0x3b44 arch/arm64/kernel/signal.c:1249
 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Allocated by task 6166:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_alloc_info+0x70/0x84 mm/kasan/generic.c:626
 unpoison_slab_object mm/kasan/common.c:314 [inline]
 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:340
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3813 [inline]
 slab_alloc_node mm/slub.c:3860 [inline]
 kmem_cache_alloc_node+0x204/0x4c0 mm/slub.c:3903
 __alloc_skb+0x19c/0x3d8 net/core/skbuff.c:641
 alloc_skb include/linux/skbuff.h:1296 [inline]
 kcm_sendmsg+0x1d3c/0x2124 net/kcm/kcmsock.c:783
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_sendmsg+0x220/0x2c0 net/socket.c:768
 splice_to_socket+0x7cc/0xd58 fs/splice.c:889
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0xec/0x1d8 fs/splice.c:1164
 splice_direct_to_actor+0x438/0xa0c fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x1e4/0x304 fs/splice.c:1233
 do_sendfile+0x460/0xb3c fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64 fs/read_write.c:1348 [inline]
 __arm64_sys_sendfile64+0x160/0x3b4 fs/read_write.c:1348
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Freed by task 6167:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_free_info+0x5c/0x74 mm/kasan/generic.c:640
 poison_slab_object+0x124/0x18c mm/kasan/common.c:241
 __kasan_slab_free+0x3c/0x78 mm/kasan/common.c:257
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2121 [inline]
 slab_free mm/slub.c:4299 [inline]
 kmem_cache_free+0x15c/0x3d4 mm/slub.c:4363
 kfree_skbmem+0x10c/0x19c
 __kfree_skb net/core/skbuff.c:1109 [inline]
 kfree_skb_reason+0x240/0x6f4 net/core/skbuff.c:1144
 kfree_skb include/linux/skbuff.h:1244 [inline]
 kcm_release+0x104/0x4c8 net/kcm/kcmsock.c:1685
 __sock_release net/socket.c:659 [inline]
 sock_close+0xa4/0x1e8 net/socket.c:1421
 __fput+0x30c/0x738 fs/file_table.c:376
 ____fput+0x20/0x30 fs/file_table.c:404
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x618/0x1f64 kernel/exit.c:871
 do_group_exit+0x194/0x22c kernel/exit.c:1020
 get_signal+0x1500/0x15ec kernel/signal.c:2893
 do_signal+0x23c/0x3b44 arch/arm64/kernel/signal.c:1249
 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

The buggy address belongs to the object at ffff0000ced0fc80
 which belongs to the cache skbuff_head_cache of size 240
The buggy address is located 0 bytes inside of
 freed 240-byte region [ffff0000ced0fc80, ffff0000ced0fd70)

The buggy address belongs to the physical page:
page:00000000d35f4ae4 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10ed0f
flags: 0x5ffc00000000800(slab|node=0|zone=2|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 05ffc00000000800 ffff0000c1cbf640 fffffdffc3423100 dead000000000004
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000ced0fb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000ced0fc00: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
>ffff0000ced0fc80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff0000ced0fd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
 ffff0000ced0fd80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb

Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Reported-by: syzbot+b72d86aa5df17ce74c60@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=b72d86aa5df17ce74c60
Tested-by: syzbot+b72d86aa5df17ce74c60@syzkaller.appspotmail.com
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240815220437.69511-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/kcm.h | 1 +
 net/kcm/kcmsock.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/include/net/kcm.h b/include/net/kcm.h
index 2d704f8f49059..8e8252e08a9ce 100644
--- a/include/net/kcm.h
+++ b/include/net/kcm.h
@@ -70,6 +70,7 @@ struct kcm_sock {
 	struct work_struct tx_work;
 	struct list_head wait_psock_list;
 	struct sk_buff *seq_skb;
+	struct mutex tx_mutex;
 	u32 tx_stopped : 1;
 
 	/* Don't use bit fields here, these are set under different locks */
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index 7420b4f19b45e..2f2840aa4a812 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -911,6 +911,7 @@ static int kcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 		  !(msg->msg_flags & MSG_MORE) : !!(msg->msg_flags & MSG_EOR);
 	int err = -EPIPE;
 
+	mutex_lock(&kcm->tx_mutex);
 	lock_sock(sk);
 
 	/* Per tcp_sendmsg this should be in poll */
@@ -1059,6 +1060,7 @@ static int kcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 	KCM_STATS_ADD(kcm->stats.tx_bytes, copied);
 
 	release_sock(sk);
+	mutex_unlock(&kcm->tx_mutex);
 	return copied;
 
 out_error:
@@ -1084,6 +1086,7 @@ static int kcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 		sk->sk_write_space(sk);
 
 	release_sock(sk);
+	mutex_unlock(&kcm->tx_mutex);
 	return err;
 }
 
@@ -1326,6 +1329,7 @@ static void init_kcm_sock(struct kcm_sock *kcm, struct kcm_mux *mux)
 	spin_unlock_bh(&mux->lock);
 
 	INIT_WORK(&kcm->tx_work, kcm_tx_work);
+	mutex_init(&kcm->tx_mutex);
 
 	spin_lock_bh(&mux->rx_lock);
 	kcm_rcv_ready(kcm);
-- 
2.43.0

[PATCH 5.10 090/151] netfilter: nft_counter: Synchronize nft_counter_reset() against reader.

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

[ Upstream commit a0b39e2dc7017ac667b70bdeee5293e410fab2fb ]

nft_counter_reset() resets the counter by subtracting the previously
retrieved value from the counter. This is a write operation on the
counter and as such it requires to be performed with a write sequence of
nft_counter_seq to serialize against its possible reader.

Update the packets/ bytes within write-sequence of nft_counter_seq.

Fixes: d84701ecbcd6a ("netfilter: nft_counter: rework atomic dump and reset")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nft_counter.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/netfilter/nft_counter.c b/net/netfilter/nft_counter.c
index 75fa6fcd6cd6c..ea102b9a168b8 100644
--- a/net/netfilter/nft_counter.c
+++ b/net/netfilter/nft_counter.c
@@ -105,11 +105,16 @@ static void nft_counter_reset(struct nft_counter_percpu_priv *priv,
 			      struct nft_counter *total)
 {
 	struct nft_counter *this_cpu;
+	seqcount_t *myseq;
 
 	local_bh_disable();
 	this_cpu = this_cpu_ptr(priv->counter);
+	myseq = this_cpu_ptr(&nft_counter_seq);
+
+	write_seqcount_begin(myseq);
 	this_cpu->packets -= total->packets;
 	this_cpu->bytes -= total->bytes;
+	write_seqcount_end(myseq);
 	local_bh_enable();
 }
 
-- 
2.43.0

[PATCH 5.10 091/151] ip6_tunnel: Fix broken GRO

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Thomas Bogendoerfer <tbogendoerfer@suse.de>

[ Upstream commit 4b3e33fcc38f7750604b065c55a43e94c5bc3145 ]

GRO code checks for matching layer 2 headers to see, if packet belongs
to the same flow and because ip6 tunnel set dev->hard_header_len
this check fails in cases, where it shouldn't. To fix this don't
set hard_header_len, but use needed_headroom like ipv4/ip_tunnel.c
does.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Link: https://patch.msgid.link/20240815151419.109864-1-tbogendoerfer@suse.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/ip6_tunnel.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index d1f8192384147..bd27204725ed8 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1531,7 +1531,8 @@ static void ip6_tnl_link_config(struct ip6_tnl *t)
 			tdev = __dev_get_by_index(t->net, p->link);
 
 		if (tdev) {
-			dev->hard_header_len = tdev->hard_header_len + t_hlen;
+			dev->needed_headroom = tdev->hard_header_len +
+				tdev->needed_headroom + t_hlen;
 			mtu = min_t(unsigned int, tdev->mtu, IP6_MAX_MTU);
 
 			mtu = mtu - t_hlen;
@@ -1758,7 +1759,9 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct ip6_tnl *tnl = netdev_priv(dev);
+	int t_hlen;
 
+	t_hlen = tnl->hlen + sizeof(struct ipv6hdr);
 	if (tnl->parms.proto == IPPROTO_IPV6) {
 		if (new_mtu < IPV6_MIN_MTU)
 			return -EINVAL;
@@ -1767,10 +1770,10 @@ int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
 			return -EINVAL;
 	}
 	if (tnl->parms.proto == IPPROTO_IPV6 || tnl->parms.proto == 0) {
-		if (new_mtu > IP6_MAX_MTU - dev->hard_header_len)
+		if (new_mtu > IP6_MAX_MTU - dev->hard_header_len - t_hlen)
 			return -EINVAL;
 	} else {
-		if (new_mtu > IP_MAX_MTU - dev->hard_header_len)
+		if (new_mtu > IP_MAX_MTU - dev->hard_header_len - t_hlen)
 			return -EINVAL;
 	}
 	dev->mtu = new_mtu;
@@ -1916,12 +1919,11 @@ ip6_tnl_dev_init_gen(struct net_device *dev)
 	t_hlen = t->hlen + sizeof(struct ipv6hdr);
 
 	dev->type = ARPHRD_TUNNEL6;
-	dev->hard_header_len = LL_MAX_HEADER + t_hlen;
 	dev->mtu = ETH_DATA_LEN - t_hlen;
 	if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
 		dev->mtu -= 8;
 	dev->min_mtu = ETH_MIN_MTU;
-	dev->max_mtu = IP6_MAX_MTU - dev->hard_header_len;
+	dev->max_mtu = IP6_MAX_MTU - dev->hard_header_len - t_hlen;
 
 	dev_hold(dev);
 	return 0;
-- 
2.43.0

[PATCH 5.10 092/151] bonding: fix bond_ipsec_offload_ok return type

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nikolay Aleksandrov <razor@blackwall.org>

[ Upstream commit fc59b9a5f7201b9f7272944596113a82cc7773d5 ]

Fix the return type which should be bool.

Fixes: 955b785ec6b3 ("bonding: fix suspicious RCU usage in bond_ipsec_offload_ok()")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_main.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index c07b9bac1a6a0..349f1c9dd5881 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -557,34 +557,28 @@ static bool bond_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *xs)
 	struct net_device *real_dev;
 	struct slave *curr_active;
 	struct bonding *bond;
-	int err;
+	bool ok = false;
 
 	bond = netdev_priv(bond_dev);
 	rcu_read_lock();
 	curr_active = rcu_dereference(bond->curr_active_slave);
 	real_dev = curr_active->dev;
 
-	if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
-		err = false;
+	if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP)
 		goto out;
-	}
 
-	if (!xs->xso.real_dev) {
-		err = false;
+	if (!xs->xso.real_dev)
 		goto out;
-	}
 
 	if (!real_dev->xfrmdev_ops ||
 	    !real_dev->xfrmdev_ops->xdo_dev_offload_ok ||
-	    netif_is_bond_master(real_dev)) {
-		err = false;
+	    netif_is_bond_master(real_dev))
 		goto out;
-	}
 
-	err = real_dev->xfrmdev_ops->xdo_dev_offload_ok(skb, xs);
+	ok = real_dev->xfrmdev_ops->xdo_dev_offload_ok(skb, xs);
 out:
 	rcu_read_unlock();
-	return err;
+	return ok;
 }
 
 static const struct xfrmdev_ops bond_xfrmdev_ops = {
-- 
2.43.0

[PATCH 5.10 093/151] bonding: fix null pointer deref in bond_ipsec_offload_ok

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nikolay Aleksandrov <razor@blackwall.org>

[ Upstream commit 95c90e4ad89d493a7a14fa200082e466e2548f9d ]

We must check if there is an active slave before dereferencing the pointer.

Fixes: 18cb261afd7b ("bonding: support hardware encryption offload to slaves")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 349f1c9dd5881..bd74b2d64ad48 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -562,6 +562,8 @@ static bool bond_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *xs)
 	bond = netdev_priv(bond_dev);
 	rcu_read_lock();
 	curr_active = rcu_dereference(bond->curr_active_slave);
+	if (!curr_active)
+		goto out;
 	real_dev = curr_active->dev;
 
 	if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP)
-- 
2.43.0

[PATCH 5.10 094/151] bonding: fix xfrm real_dev null pointer dereference

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nikolay Aleksandrov <razor@blackwall.org>

[ Upstream commit f8cde9805981c50d0c029063dc7d82821806fc44 ]

We shouldn't set real_dev to NULL because packets can be in transit and
xfrm might call xdo_dev_offload_ok() in parallel. All callbacks assume
real_dev is set.

 Example trace:
 kernel: BUG: unable to handle page fault for address: 0000000000001030
 kernel: bond0: (slave eni0np1): making interface the new active one
 kernel: #PF: supervisor write access in kernel mode
 kernel: #PF: error_code(0x0002) - not-present page
 kernel: PGD 0 P4D 0
 kernel: Oops: 0002 [#1] PREEMPT SMP
 kernel: CPU: 4 PID: 2237 Comm: ping Not tainted 6.7.7+ #12
 kernel: Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014
 kernel: RIP: 0010:nsim_ipsec_offload_ok+0xc/0x20 [netdevsim]
 kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA
 kernel: Code: e0 0f 0b 48 83 7f 38 00 74 de 0f 0b 48 8b 47 08 48 8b 37 48 8b 78 40 e9 b2 e5 9a d7 66 90 0f 1f 44 00 00 48 8b 86 80 02 00 00 <83> 80 30 10 00 00 01 b8 01 00 00 00 c3 0f 1f 80 00 00 00 00 0f 1f
 kernel: bond0: (slave eni0np1): making interface the new active one
 kernel: RSP: 0018:ffffabde81553b98 EFLAGS: 00010246
 kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA
 kernel:
 kernel: RAX: 0000000000000000 RBX: ffff9eb404e74900 RCX: ffff9eb403d97c60
 kernel: RDX: ffffffffc090de10 RSI: ffff9eb404e74900 RDI: ffff9eb3c5de9e00
 kernel: RBP: ffff9eb3c0a42000 R08: 0000000000000010 R09: 0000000000000014
 kernel: R10: 7974203030303030 R11: 3030303030303030 R12: 0000000000000000
 kernel: R13: ffff9eb3c5de9e00 R14: ffffabde81553cc8 R15: ffff9eb404c53000
 kernel: FS:  00007f2a77a3ad00(0000) GS:ffff9eb43bd00000(0000) knlGS:0000000000000000
 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 kernel: CR2: 0000000000001030 CR3: 00000001122ab000 CR4: 0000000000350ef0
 kernel: bond0: (slave eni0np1): making interface the new active one
 kernel: Call Trace:
 kernel:  <TASK>
 kernel:  ? __die+0x1f/0x60
 kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA
 kernel:  ? page_fault_oops+0x142/0x4c0
 kernel:  ? do_user_addr_fault+0x65/0x670
 kernel:  ? kvm_read_and_reset_apf_flags+0x3b/0x50
 kernel: bond0: (slave eni0np1): making interface the new active one
 kernel:  ? exc_page_fault+0x7b/0x180
 kernel:  ? asm_exc_page_fault+0x22/0x30
 kernel:  ? nsim_bpf_uninit+0x50/0x50 [netdevsim]
 kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA
 kernel:  ? nsim_ipsec_offload_ok+0xc/0x20 [netdevsim]
 kernel: bond0: (slave eni0np1): making interface the new active one
 kernel:  bond_ipsec_offload_ok+0x7b/0x90 [bonding]
 kernel:  xfrm_output+0x61/0x3b0
 kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA
 kernel:  ip_push_pending_frames+0x56/0x80

Fixes: 18cb261afd7b ("bonding: support hardware encryption offload to slaves")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index bd74b2d64ad48..506b6d1cc27df 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -540,7 +540,6 @@ static void bond_ipsec_del_sa_all(struct bonding *bond)
 		} else {
 			slave->dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs);
 		}
-		ipsec->xs->xso.real_dev = NULL;
 	}
 	spin_unlock_bh(&bond->ipsec_lock);
 	rcu_read_unlock();
-- 
2.43.0

[PATCH 5.10 095/151] bonding: fix xfrm state handling when clearing active slave

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nikolay Aleksandrov <razor@blackwall.org>

[ Upstream commit c4c5c5d2ef40a9f67a9241dc5422eac9ffe19547 ]

If the active slave is cleared manually the xfrm state is not flushed.
This leads to xfrm add/del imbalance and adding the same state multiple
times. For example when the device cannot handle anymore states we get:
 [ 1169.884811] bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA
because it's filled with the same state after multiple active slave
clearings. This change also has a few nice side effects: user-space
gets a notification for the change, the old device gets its mac address
and promisc/mcast adjusted properly.

Fixes: 18cb261afd7b ("bonding: support hardware encryption offload to slaves")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_options.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index fa0bf77870d43..acc6185749945 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -822,7 +822,7 @@ static int bond_option_active_slave_set(struct bonding *bond,
 	/* check to see if we are clearing active */
 	if (!slave_dev) {
 		netdev_dbg(bond->dev, "Clearing current active slave\n");
-		RCU_INIT_POINTER(bond->curr_active_slave, NULL);
+		bond_change_active_slave(bond, NULL);
 		bond_select_active_slave(bond);
 	} else {
 		struct slave *old_active = rtnl_dereference(bond->curr_active_slave);
-- 
2.43.0

[PATCH 5.10 096/151] ice: fix ICE_LAST_OFFSET formula

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>

[ Upstream commit b966ad832942b5a11e002f9b5ef102b08425b84a ]

For bigger PAGE_SIZE archs, ice driver works on 3k Rx buffers.
Therefore, ICE_LAST_OFFSET should take into account ICE_RXBUF_3072, not
ICE_RXBUF_2048.

Fixes: 7237f5b0dba4 ("ice: introduce legacy Rx flag")
Suggested-by: Luiz Capitulino <luizcap@redhat.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_txrx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 442a9bcbf60a7..7734264d570db 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -786,7 +786,7 @@ ice_can_reuse_rx_page(struct ice_rx_buf *rx_buf, int rx_buf_pgcnt)
 		return false;
 #else
 #define ICE_LAST_OFFSET \
-	(SKB_WITH_OVERHEAD(PAGE_SIZE) - ICE_RXBUF_2048)
+	(SKB_WITH_OVERHEAD(PAGE_SIZE) - ICE_RXBUF_3072)
 	if (rx_buf->page_offset > ICE_LAST_OFFSET)
 		return false;
 #endif /* PAGE_SIZE < 8192) */
-- 
2.43.0

[PATCH 5.10 097/151] net: dsa: mv88e6xxx: read FID when handling ATU violations

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hans J. Schultz <netdev@kapio-technology.com>

[ Upstream commit 4bf24ad09bc0b05e97fb48b962b2c9246fc76727 ]

When an ATU violation occurs, the switch uses the ATU FID register to
report the FID of the MAC address that incurred the violation. It would
be good for the driver to know the FID value for purposes such as
logging and CPU-based authentication.

Up until now, the driver has been calling the mv88e6xxx_g1_atu_op()
function to read ATU violations, but that doesn't do exactly what we
want, namely it calls mv88e6xxx_g1_atu_fid_write() with FID 0.
(side note, the documentation for the ATU Get/Clear Violation command
says that writes to the ATU FID register have no effect before the
operation starts, it's only that we disregard the value that this
register provides once the operation completes)

So mv88e6xxx_g1_atu_fid_write() is not what we want, but rather
mv88e6xxx_g1_atu_fid_read(). However, the latter doesn't exist, we need
to write it.

The remainder of mv88e6xxx_g1_atu_op() except for
mv88e6xxx_g1_atu_fid_write() is still needed, namely to send a
GET_CLR_VIOLATION command to the ATU. In principle we could have still
kept calling mv88e6xxx_g1_atu_op(), but the MDIO writes to the ATU FID
register are pointless, but in the interest of doing less CPU work per
interrupt, write a new function called mv88e6xxx_g1_read_atu_violation()
and call it.

The FID will be the port default FID as set by mv88e6xxx_port_set_fid()
if the VID from the packet cannot be found in the VTU. Otherwise it is
the FID derived from the VTU entry associated with that VID.

Signed-off-by: Hans J. Schultz <netdev@kapio-technology.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 528876d867a2 ("net: dsa: mv88e6xxx: Fix out-of-bound access")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/global1_atu.c | 72 +++++++++++++++++++++----
 1 file changed, 61 insertions(+), 11 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/global1_atu.c b/drivers/net/dsa/mv88e6xxx/global1_atu.c
index bac9a8a68e500..b5580042250ff 100644
--- a/drivers/net/dsa/mv88e6xxx/global1_atu.c
+++ b/drivers/net/dsa/mv88e6xxx/global1_atu.c
@@ -114,6 +114,19 @@ static int mv88e6xxx_g1_atu_op_wait(struct mv88e6xxx_chip *chip)
 	return mv88e6xxx_g1_wait_bit(chip, MV88E6XXX_G1_ATU_OP, bit, 0);
 }
 
+static int mv88e6xxx_g1_read_atu_violation(struct mv88e6xxx_chip *chip)
+{
+	int err;
+
+	err = mv88e6xxx_g1_write(chip, MV88E6XXX_G1_ATU_OP,
+				 MV88E6XXX_G1_ATU_OP_BUSY |
+				 MV88E6XXX_G1_ATU_OP_GET_CLR_VIOLATION);
+	if (err)
+		return err;
+
+	return mv88e6xxx_g1_atu_op_wait(chip);
+}
+
 static int mv88e6xxx_g1_atu_op(struct mv88e6xxx_chip *chip, u16 fid, u16 op)
 {
 	u16 val;
@@ -159,6 +172,41 @@ int mv88e6xxx_g1_atu_get_next(struct mv88e6xxx_chip *chip, u16 fid)
 	return mv88e6xxx_g1_atu_op(chip, fid, MV88E6XXX_G1_ATU_OP_GET_NEXT_DB);
 }
 
+static int mv88e6xxx_g1_atu_fid_read(struct mv88e6xxx_chip *chip, u16 *fid)
+{
+	u16 val = 0, upper = 0, op = 0;
+	int err = -EOPNOTSUPP;
+
+	if (mv88e6xxx_num_databases(chip) > 256) {
+		err = mv88e6xxx_g1_read(chip, MV88E6352_G1_ATU_FID, &val);
+		val &= 0xfff;
+		if (err)
+			return err;
+	} else {
+		err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_OP, &op);
+		if (err)
+			return err;
+		if (mv88e6xxx_num_databases(chip) > 64) {
+			/* ATU DBNum[7:4] are located in ATU Control 15:12 */
+			err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_CTL,
+						&upper);
+			if (err)
+				return err;
+
+			upper = (upper >> 8) & 0x00f0;
+		} else if (mv88e6xxx_num_databases(chip) > 16) {
+			/* ATU DBNum[5:4] are located in ATU Operation 9:8 */
+			upper = (op >> 4) & 0x30;
+		}
+
+		/* ATU DBNum[3:0] are located in ATU Operation 3:0 */
+		val = (op & 0xf) | upper;
+	}
+	*fid = val;
+
+	return err;
+}
+
 /* Offset 0x0C: ATU Data Register */
 
 static int mv88e6xxx_g1_atu_data_read(struct mv88e6xxx_chip *chip,
@@ -353,14 +401,12 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
 {
 	struct mv88e6xxx_chip *chip = dev_id;
 	struct mv88e6xxx_atu_entry entry;
-	int spid;
-	int err;
-	u16 val;
+	int err, spid;
+	u16 val, fid;
 
 	mv88e6xxx_reg_lock(chip);
 
-	err = mv88e6xxx_g1_atu_op(chip, 0,
-				  MV88E6XXX_G1_ATU_OP_GET_CLR_VIOLATION);
+	err = mv88e6xxx_g1_read_atu_violation(chip);
 	if (err)
 		goto out;
 
@@ -368,6 +414,10 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
 	if (err)
 		goto out;
 
+	err = mv88e6xxx_g1_atu_fid_read(chip, &fid);
+	if (err)
+		goto out;
+
 	err = mv88e6xxx_g1_atu_data_read(chip, &entry);
 	if (err)
 		goto out;
@@ -386,22 +436,22 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
 
 	if (val & MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION) {
 		dev_err_ratelimited(chip->dev,
-				    "ATU member violation for %pM portvec %x spid %d\n",
-				    entry.mac, entry.portvec, spid);
+				    "ATU member violation for %pM fid %u portvec %x spid %d\n",
+				    entry.mac, fid, entry.portvec, spid);
 		chip->ports[spid].atu_member_violation++;
 	}
 
 	if (val & MV88E6XXX_G1_ATU_OP_MISS_VIOLATION) {
 		dev_err_ratelimited(chip->dev,
-				    "ATU miss violation for %pM portvec %x spid %d\n",
-				    entry.mac, entry.portvec, spid);
+				    "ATU miss violation for %pM fid %u portvec %x spid %d\n",
+				    entry.mac, fid, entry.portvec, spid);
 		chip->ports[spid].atu_miss_violation++;
 	}
 
 	if (val & MV88E6XXX_G1_ATU_OP_FULL_VIOLATION) {
 		dev_err_ratelimited(chip->dev,
-				    "ATU full violation for %pM portvec %x spid %d\n",
-				    entry.mac, entry.portvec, spid);
+				    "ATU full violation for %pM fid %u portvec %x spid %d\n",
+				    entry.mac, fid, entry.portvec, spid);
 		chip->ports[spid].atu_full_violation++;
 	}
 	mv88e6xxx_reg_unlock(chip);
-- 
2.43.0

[PATCH 5.10 098/151] net: dsa: mv88e6xxx: replace ATU violation prints with trace points

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vladimir Oltean <vladimir.oltean@nxp.com>

[ Upstream commit 8646384d80f3d3b4a66b3284dbbd8232d1b8799e ]

In applications where the switch ports must perform 802.1X based
authentication and are therefore locked, ATU violation interrupts are
quite to be expected as part of normal operation. The problem is that
they currently spam the kernel log, even if rate limited.

Create a series of trace points, all derived from the same event class,
which log these violations to the kernel's trace buffer, which is both
much faster and much easier to ignore than printing to a serial console.

New usage model:

$ trace-cmd list | grep mv88e6xxx
mv88e6xxx
mv88e6xxx:mv88e6xxx_atu_full_violation
mv88e6xxx:mv88e6xxx_atu_miss_violation
mv88e6xxx:mv88e6xxx_atu_member_violation
$ trace-cmd record -e mv88e6xxx sleep 10

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 528876d867a2 ("net: dsa: mv88e6xxx: Fix out-of-bound access")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/Makefile      |  4 ++
 drivers/net/dsa/mv88e6xxx/global1_atu.c | 19 +++----
 drivers/net/dsa/mv88e6xxx/trace.c       |  6 +++
 drivers/net/dsa/mv88e6xxx/trace.h       | 66 +++++++++++++++++++++++++
 4 files changed, 86 insertions(+), 9 deletions(-)
 create mode 100644 drivers/net/dsa/mv88e6xxx/trace.c
 create mode 100644 drivers/net/dsa/mv88e6xxx/trace.h

diff --git a/drivers/net/dsa/mv88e6xxx/Makefile b/drivers/net/dsa/mv88e6xxx/Makefile
index 4b080b448ce74..1f7240e0d6bce 100644
--- a/drivers/net/dsa/mv88e6xxx/Makefile
+++ b/drivers/net/dsa/mv88e6xxx/Makefile
@@ -15,3 +15,7 @@ mv88e6xxx-objs += port_hidden.o
 mv88e6xxx-$(CONFIG_NET_DSA_MV88E6XXX_PTP) += ptp.o
 mv88e6xxx-objs += serdes.o
 mv88e6xxx-objs += smi.o
+mv88e6xxx-objs += trace.o
+
+# for tracing framework to find trace.h
+CFLAGS_trace.o := -I$(src)
diff --git a/drivers/net/dsa/mv88e6xxx/global1_atu.c b/drivers/net/dsa/mv88e6xxx/global1_atu.c
index b5580042250ff..1a4781a44e0d7 100644
--- a/drivers/net/dsa/mv88e6xxx/global1_atu.c
+++ b/drivers/net/dsa/mv88e6xxx/global1_atu.c
@@ -12,6 +12,7 @@
 
 #include "chip.h"
 #include "global1.h"
+#include "trace.h"
 
 /* Offset 0x01: ATU FID Register */
 
@@ -435,23 +436,23 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
 	}
 
 	if (val & MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION) {
-		dev_err_ratelimited(chip->dev,
-				    "ATU member violation for %pM fid %u portvec %x spid %d\n",
-				    entry.mac, fid, entry.portvec, spid);
+		trace_mv88e6xxx_atu_member_violation(chip->dev, spid,
+						     entry.portvec, entry.mac,
+						     fid);
 		chip->ports[spid].atu_member_violation++;
 	}
 
 	if (val & MV88E6XXX_G1_ATU_OP_MISS_VIOLATION) {
-		dev_err_ratelimited(chip->dev,
-				    "ATU miss violation for %pM fid %u portvec %x spid %d\n",
-				    entry.mac, fid, entry.portvec, spid);
+		trace_mv88e6xxx_atu_miss_violation(chip->dev, spid,
+						   entry.portvec, entry.mac,
+						   fid);
 		chip->ports[spid].atu_miss_violation++;
 	}
 
 	if (val & MV88E6XXX_G1_ATU_OP_FULL_VIOLATION) {
-		dev_err_ratelimited(chip->dev,
-				    "ATU full violation for %pM fid %u portvec %x spid %d\n",
-				    entry.mac, fid, entry.portvec, spid);
+		trace_mv88e6xxx_atu_full_violation(chip->dev, spid,
+						   entry.portvec, entry.mac,
+						   fid);
 		chip->ports[spid].atu_full_violation++;
 	}
 	mv88e6xxx_reg_unlock(chip);
diff --git a/drivers/net/dsa/mv88e6xxx/trace.c b/drivers/net/dsa/mv88e6xxx/trace.c
new file mode 100644
index 0000000000000..7833cb50ca5d7
--- /dev/null
+++ b/drivers/net/dsa/mv88e6xxx/trace.c
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Copyright 2022 NXP
+ */
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
diff --git a/drivers/net/dsa/mv88e6xxx/trace.h b/drivers/net/dsa/mv88e6xxx/trace.h
new file mode 100644
index 0000000000000..d9ab5c8dee55d
--- /dev/null
+++ b/drivers/net/dsa/mv88e6xxx/trace.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Copyright 2022 NXP
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM	mv88e6xxx
+
+#if !defined(_MV88E6XXX_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _MV88E6XXX_TRACE_H
+
+#include <linux/device.h>
+#include <linux/if_ether.h>
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(mv88e6xxx_atu_violation,
+
+	TP_PROTO(const struct device *dev, int spid, u16 portvec,
+		 const unsigned char *addr, u16 fid),
+
+	TP_ARGS(dev, spid, portvec, addr, fid),
+
+	TP_STRUCT__entry(
+		__string(name, dev_name(dev))
+		__field(int, spid)
+		__field(u16, portvec)
+		__array(unsigned char, addr, ETH_ALEN)
+		__field(u16, fid)
+	),
+
+	TP_fast_assign(
+		__assign_str(name, dev_name(dev));
+		__entry->spid = spid;
+		__entry->portvec = portvec;
+		memcpy(__entry->addr, addr, ETH_ALEN);
+		__entry->fid = fid;
+	),
+
+	TP_printk("dev %s spid %d portvec 0x%x addr %pM fid %u",
+		  __get_str(name), __entry->spid, __entry->portvec,
+		  __entry->addr, __entry->fid)
+);
+
+DEFINE_EVENT(mv88e6xxx_atu_violation, mv88e6xxx_atu_member_violation,
+	     TP_PROTO(const struct device *dev, int spid, u16 portvec,
+		      const unsigned char *addr, u16 fid),
+	     TP_ARGS(dev, spid, portvec, addr, fid));
+
+DEFINE_EVENT(mv88e6xxx_atu_violation, mv88e6xxx_atu_miss_violation,
+	     TP_PROTO(const struct device *dev, int spid, u16 portvec,
+		      const unsigned char *addr, u16 fid),
+	     TP_ARGS(dev, spid, portvec, addr, fid));
+
+DEFINE_EVENT(mv88e6xxx_atu_violation, mv88e6xxx_atu_full_violation,
+	     TP_PROTO(const struct device *dev, int spid, u16 portvec,
+		      const unsigned char *addr, u16 fid),
+	     TP_ARGS(dev, spid, portvec, addr, fid));
+
+#endif /* _MV88E6XXX_TRACE_H */
+
+/* We don't want to use include/trace/events */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE	trace
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
2.43.0

[PATCH 5.10 099/151] net: dsa: mv88e6xxx: Fix out-of-bound access

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Joseph Huang <Joseph.Huang@garmin.com>

[ Upstream commit 528876d867a23b5198022baf2e388052ca67c952 ]

If an ATU violation was caused by a CPU Load operation, the SPID could
be larger than DSA_MAX_PORTS (the size of mv88e6xxx_chip.ports[] array).

Fixes: 75c05a74e745 ("net: dsa: mv88e6xxx: Fix counting of ATU violations")
Signed-off-by: Joseph Huang <Joseph.Huang@garmin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240819235251.1331763-1-Joseph.Huang@garmin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/global1_atu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/global1_atu.c b/drivers/net/dsa/mv88e6xxx/global1_atu.c
index 1a4781a44e0d7..79377ceb66af5 100644
--- a/drivers/net/dsa/mv88e6xxx/global1_atu.c
+++ b/drivers/net/dsa/mv88e6xxx/global1_atu.c
@@ -453,7 +453,8 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
 		trace_mv88e6xxx_atu_full_violation(chip->dev, spid,
 						   entry.portvec, entry.mac,
 						   fid);
-		chip->ports[spid].atu_full_violation++;
+		if (spid < ARRAY_SIZE(chip->ports))
+			chip->ports[spid].atu_full_violation++;
 	}
 	mv88e6xxx_reg_unlock(chip);
 
-- 
2.43.0

[PATCH 5.10 100/151] netem: fix return value if duplicate enqueue fails

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stephen Hemminger <stephen@networkplumber.org>

[ Upstream commit c07ff8592d57ed258afee5a5e04991a48dbaf382 ]

There is a bug in netem_enqueue() introduced by
commit 5845f706388a ("net: netem: fix skb length BUG_ON in __skb_to_sgvec")
that can lead to a use-after-free.

This commit made netem_enqueue() always return NET_XMIT_SUCCESS
when a packet is duplicated, which can cause the parent qdisc's q.qlen
to be mistakenly incremented. When this happens qlen_notify() may be
skipped on the parent during destruction, leaving a dangling pointer
for some classful qdiscs like DRR.

There are two ways for the bug happen:

- If the duplicated packet is dropped by rootq->enqueue() and then
  the original packet is also dropped.
- If rootq->enqueue() sends the duplicated packet to a different qdisc
  and the original packet is dropped.

In both cases NET_XMIT_SUCCESS is returned even though no packets
are enqueued at the netem qdisc.

The fix is to defer the enqueue of the duplicate packet until after
the original packet has been guaranteed to return NET_XMIT_SUCCESS.

Fixes: 5845f706388a ("net: netem: fix skb length BUG_ON in __skb_to_sgvec")
Reported-by: Budimir Markovic <markovicbudimir@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240819175753.5151-1-stephen@networkplumber.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_netem.c | 47 ++++++++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 18 deletions(-)

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 08aaa6efc62c8..e0e16b0fdb179 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -437,12 +437,10 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 	struct netem_sched_data *q = qdisc_priv(sch);
 	/* We don't fill cb now as skb_unshare() may invalidate it */
 	struct netem_skb_cb *cb;
-	struct sk_buff *skb2;
+	struct sk_buff *skb2 = NULL;
 	struct sk_buff *segs = NULL;
 	unsigned int prev_len = qdisc_pkt_len(skb);
 	int count = 1;
-	int rc = NET_XMIT_SUCCESS;
-	int rc_drop = NET_XMIT_DROP;
 
 	/* Do not fool qdisc_drop_all() */
 	skb->prev = NULL;
@@ -471,19 +469,11 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 		skb_orphan_partial(skb);
 
 	/*
-	 * If we need to duplicate packet, then re-insert at top of the
-	 * qdisc tree, since parent queuer expects that only one
-	 * skb will be queued.
+	 * If we need to duplicate packet, then clone it before
+	 * original is modified.
 	 */
-	if (count > 1 && (skb2 = skb_clone(skb, GFP_ATOMIC)) != NULL) {
-		struct Qdisc *rootq = qdisc_root_bh(sch);
-		u32 dupsave = q->duplicate; /* prevent duplicating a dup... */
-
-		q->duplicate = 0;
-		rootq->enqueue(skb2, rootq, to_free);
-		q->duplicate = dupsave;
-		rc_drop = NET_XMIT_SUCCESS;
-	}
+	if (count > 1)
+		skb2 = skb_clone(skb, GFP_ATOMIC);
 
 	/*
 	 * Randomized packet corruption.
@@ -495,7 +485,8 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 		if (skb_is_gso(skb)) {
 			skb = netem_segment(skb, sch, to_free);
 			if (!skb)
-				return rc_drop;
+				goto finish_segs;
+
 			segs = skb->next;
 			skb_mark_not_on_list(skb);
 			qdisc_skb_cb(skb)->pkt_len = skb->len;
@@ -521,7 +512,24 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 		/* re-link segs, so that qdisc_drop_all() frees them all */
 		skb->next = segs;
 		qdisc_drop_all(skb, sch, to_free);
-		return rc_drop;
+		if (skb2)
+			__qdisc_drop(skb2, to_free);
+		return NET_XMIT_DROP;
+	}
+
+	/*
+	 * If doing duplication then re-insert at top of the
+	 * qdisc tree, since parent queuer expects that only one
+	 * skb will be queued.
+	 */
+	if (skb2) {
+		struct Qdisc *rootq = qdisc_root_bh(sch);
+		u32 dupsave = q->duplicate; /* prevent duplicating a dup... */
+
+		q->duplicate = 0;
+		rootq->enqueue(skb2, rootq, to_free);
+		q->duplicate = dupsave;
+		skb2 = NULL;
 	}
 
 	qdisc_qstats_backlog_inc(sch, skb);
@@ -592,9 +600,12 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 	}
 
 finish_segs:
+	if (skb2)
+		__qdisc_drop(skb2, to_free);
+
 	if (segs) {
 		unsigned int len, last_len;
-		int nb;
+		int rc, nb;
 
 		len = skb ? skb->len : 0;
 		nb = skb ? 1 : 0;
-- 
2.43.0

[PATCH 5.10 101/151] ipv6: prevent UAF in ip6_send_skb()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit faa389b2fbaaec7fd27a390b4896139f9da662e3 ]

syzbot reported an UAF in ip6_send_skb() [1]

After ip6_local_out() has returned, we no longer can safely
dereference rt, unless we hold rcu_read_lock().

A similar issue has been fixed in commit
a688caa34beb ("ipv6: take rcu lock in rawv6_send_hdrinc()")

Another potential issue in ip6_finish_output2() is handled in a
separate patch.

[1]
 BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
Read of size 8 at addr ffff88806dde4858 by task syz.1.380/6530

CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
  __dump_stack lib/dump_stack.c:93 [inline]
  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
  print_address_description mm/kasan/report.c:377 [inline]
  print_report+0x169/0x550 mm/kasan/report.c:488
  kasan_report+0x143/0x180 mm/kasan/report.c:601
  ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588
  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  sock_write_iter+0x2dd/0x400 net/socket.c:1160
 do_iter_readv_writev+0x60a/0x890
  vfs_writev+0x37c/0xbb0 fs/read_write.c:971
  do_writev+0x1b1/0x350 fs/read_write.c:1018
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f936bf79e79
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8
 </TASK>

Allocated by task 6530:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  unpoison_slab_object mm/kasan/common.c:312 [inline]
  __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
  kasan_slab_alloc include/linux/kasan.h:201 [inline]
  slab_post_alloc_hook mm/slub.c:3988 [inline]
  slab_alloc_node mm/slub.c:4037 [inline]
  kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044
  dst_alloc+0x12b/0x190 net/core/dst.c:89
  ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670
  make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]
  xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313
  ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257
  rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
  ___sys_sendmsg net/socket.c:2651 [inline]
  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 45:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
  poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
  __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
  kasan_slab_free include/linux/kasan.h:184 [inline]
  slab_free_hook mm/slub.c:2252 [inline]
  slab_free mm/slub.c:4473 [inline]
  kmem_cache_free+0x145/0x350 mm/slub.c:4548
  dst_destroy+0x2ac/0x460 net/core/dst.c:124
  rcu_do_batch kernel/rcu/tree.c:2569 [inline]
  rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2843
  handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
  __do_softirq kernel/softirq.c:588 [inline]
  invoke_softirq kernel/softirq.c:428 [inline]
  __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
  irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
  instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
  sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
  asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702

Last potentially related work creation:
  kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
  __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
  __call_rcu_common kernel/rcu/tree.c:3106 [inline]
  call_rcu+0x167/0xa70 kernel/rcu/tree.c:3210
  refdst_drop include/net/dst.h:263 [inline]
  skb_dst_drop include/net/dst.h:275 [inline]
  nf_ct_frag6_queue net/ipv6/netfilter/nf_conntrack_reasm.c:306 [inline]
  nf_ct_frag6_gather+0xb9a/0x2080 net/ipv6/netfilter/nf_conntrack_reasm.c:485
  ipv6_defrag+0x2c8/0x3c0 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c:67
  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
  nf_hook include/linux/netfilter.h:269 [inline]
  __ip6_local_out+0x6fa/0x800 net/ipv6/output_core.c:143
  ip6_local_out+0x26/0x70 net/ipv6/output_core.c:153
  ip6_send_skb+0x112/0x230 net/ipv6/ip6_output.c:1959
  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588
  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  sock_write_iter+0x2dd/0x400 net/socket.c:1160
 do_iter_readv_writev+0x60a/0x890

Fixes: 0625491493d9 ("ipv6: ip6_push_pending_frames() should increment IPSTATS_MIB_OUTDISCARDS")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240820160859.3786976-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/ip6_output.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 32512b8ca5e72..436733021b1e9 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1952,6 +1952,7 @@ int ip6_send_skb(struct sk_buff *skb)
 	struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
 	int err;
 
+	rcu_read_lock();
 	err = ip6_local_out(net, skb->sk, skb);
 	if (err) {
 		if (err > 0)
@@ -1961,6 +1962,7 @@ int ip6_send_skb(struct sk_buff *skb)
 				      IPSTATS_MIB_OUTDISCARDS);
 	}
 
+	rcu_read_unlock();
 	return err;
 }
 
-- 
2.43.0

[PATCH 5.10 102/151] net: xilinx: axienet: Always disable promiscuous mode

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sean Anderson <sean.anderson@linux.dev>

[ Upstream commit 4ae738dfef2c0323752ab81786e2d298c9939321 ]

If promiscuous mode is disabled when there are fewer than four multicast
addresses, then it will not be reflected in the hardware. Fix this by
always clearing the promiscuous mode flag even when we program multicast
addresses.

Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240822154059.1066595-2-sean.anderson@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 2a5a3f8761c30..b814ef1da3c73 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -427,6 +427,10 @@ static void axienet_set_multicast_list(struct net_device *ndev)
 	} else if (!netdev_mc_empty(ndev)) {
 		struct netdev_hw_addr *ha;
 
+		reg = axienet_ior(lp, XAE_FMI_OFFSET);
+		reg &= ~XAE_FMI_PM_MASK;
+		axienet_iow(lp, XAE_FMI_OFFSET, reg);
+
 		i = 0;
 		netdev_for_each_mc_addr(ha, ndev) {
 			if (i >= XAE_MULTICAST_CAM_TABLE_NUM)
-- 
2.43.0

[PATCH 5.10 103/151] net: xilinx: axienet: Fix dangling multicast addresses

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sean Anderson <sean.anderson@linux.dev>

[ Upstream commit 797a68c9de0f5a5447baf4bd3bb9c10a3993435b ]

If a multicast address is removed but there are still some multicast
addresses, that address would remain programmed into the frame filter.
Fix this by explicitly setting the enable bit for each filter.

Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240822154059.1066595-3-sean.anderson@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet.h  |  1 +
 .../net/ethernet/xilinx/xilinx_axienet_main.c | 21 ++++++++-----------
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
index c0c93d0e3c7f9..071822028ea5e 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
@@ -169,6 +169,7 @@
 #define XAE_UAW0_OFFSET		0x00000700 /* Unicast address word 0 */
 #define XAE_UAW1_OFFSET		0x00000704 /* Unicast address word 1 */
 #define XAE_FMI_OFFSET		0x00000708 /* Frame Filter Control */
+#define XAE_FFE_OFFSET		0x0000070C /* Frame Filter Enable */
 #define XAE_AF0_OFFSET		0x00000710 /* Address Filter 0 */
 #define XAE_AF1_OFFSET		0x00000714 /* Address Filter 1 */
 
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index b814ef1da3c73..3253ace2b6014 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -409,7 +409,7 @@ static int netdev_set_mac_address(struct net_device *ndev, void *p)
  */
 static void axienet_set_multicast_list(struct net_device *ndev)
 {
-	int i;
+	int i = 0;
 	u32 reg, af0reg, af1reg;
 	struct axienet_local *lp = netdev_priv(ndev);
 
@@ -431,7 +431,6 @@ static void axienet_set_multicast_list(struct net_device *ndev)
 		reg &= ~XAE_FMI_PM_MASK;
 		axienet_iow(lp, XAE_FMI_OFFSET, reg);
 
-		i = 0;
 		netdev_for_each_mc_addr(ha, ndev) {
 			if (i >= XAE_MULTICAST_CAM_TABLE_NUM)
 				break;
@@ -450,6 +449,7 @@ static void axienet_set_multicast_list(struct net_device *ndev)
 			axienet_iow(lp, XAE_FMI_OFFSET, reg);
 			axienet_iow(lp, XAE_AF0_OFFSET, af0reg);
 			axienet_iow(lp, XAE_AF1_OFFSET, af1reg);
+			axienet_iow(lp, XAE_FFE_OFFSET, 1);
 			i++;
 		}
 	} else {
@@ -457,18 +457,15 @@ static void axienet_set_multicast_list(struct net_device *ndev)
 		reg &= ~XAE_FMI_PM_MASK;
 
 		axienet_iow(lp, XAE_FMI_OFFSET, reg);
-
-		for (i = 0; i < XAE_MULTICAST_CAM_TABLE_NUM; i++) {
-			reg = axienet_ior(lp, XAE_FMI_OFFSET) & 0xFFFFFF00;
-			reg |= i;
-
-			axienet_iow(lp, XAE_FMI_OFFSET, reg);
-			axienet_iow(lp, XAE_AF0_OFFSET, 0);
-			axienet_iow(lp, XAE_AF1_OFFSET, 0);
-		}
-
 		dev_info(&ndev->dev, "Promiscuous mode disabled.\n");
 	}
+
+	for (; i < XAE_MULTICAST_CAM_TABLE_NUM; i++) {
+		reg = axienet_ior(lp, XAE_FMI_OFFSET) & 0xFFFFFF00;
+		reg |= i;
+		axienet_iow(lp, XAE_FMI_OFFSET, reg);
+		axienet_iow(lp, XAE_FFE_OFFSET, 0);
+	}
 }
 
 /**
-- 
2.43.0

[PATCH 5.10 104/151] drm/msm/dpu: dont play tricks with debug macros

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

[ Upstream commit df24373435f5899a2a98b7d377479c8d4376613b ]

DPU debugging macros need to be converted to a proper drm_debug_*
macros, however this is a going an intrusive patch, not suitable for a
fix. Wire DPU_DEBUG and DPU_DEBUG_DRIVER to always use DRM_DEBUG_DRIVER
to make sure that DPU debugging messages always end up in the drm debug
messages and are controlled via the usual drm.debug mask.

I don't think that it is a good idea for a generic DPU_DEBUG macro to be
tied to DRM_UT_KMS. It is used to report a debug message from driver, so by
default it should go to the DRM_UT_DRIVER channel. While refactoring
debug macros later on we might end up with particular messages going to
ATOMIC or KMS, but DRIVER should be the default.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/606932/
Link: https://lore.kernel.org/r/20240802-dpu-fix-wb-v2-2-7eac9eb8e895@linaro.org
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index bb7c7e437242e..31a5646f54939 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -32,24 +32,14 @@
  * @fmt: Pointer to format string
  */
 #define DPU_DEBUG(fmt, ...)                                                \
-	do {                                                               \
-		if (drm_debug_enabled(DRM_UT_KMS))                         \
-			DRM_DEBUG(fmt, ##__VA_ARGS__); \
-		else                                                       \
-			pr_debug(fmt, ##__VA_ARGS__);                      \
-	} while (0)
+	DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
 
 /**
  * DPU_DEBUG_DRIVER - macro for hardware driver logging
  * @fmt: Pointer to format string
  */
 #define DPU_DEBUG_DRIVER(fmt, ...)                                         \
-	do {                                                               \
-		if (drm_debug_enabled(DRM_UT_DRIVER))                      \
-			DRM_ERROR(fmt, ##__VA_ARGS__); \
-		else                                                       \
-			pr_debug(fmt, ##__VA_ARGS__);                      \
-	} while (0)
+	DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
 
 #define DPU_ERROR(fmt, ...) pr_err("[dpu error]" fmt, ##__VA_ARGS__)
 #define DPU_ERROR_RATELIMITED(fmt, ...) pr_err_ratelimited("[dpu error]" fmt, ##__VA_ARGS__)
-- 
2.43.0

[PATCH 5.10 105/151] drm/msm/dp: reset the link phy params before link training

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Abhinav Kumar <quic_abhinavk@quicinc.com>

[ Upstream commit 319aca883bfa1b85ee08411541b51b9a934ac858 ]

Before re-starting link training reset the link phy params namely
the pre-emphasis and voltage swing levels otherwise the next
link training begins at the previously cached levels which can result
in link training failures.

Fixes: 8ede2ecc3e5e ("drm/msm/dp: Add DP compliance tests on Snapdragon Chipsets")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # SM8350-HDK
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/605946/
Link: https://lore.kernel.org/r/20240725220450.131245-1-quic_abhinavk@quicinc.com
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/dp/dp_ctrl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index 07becbf3c64fc..0b0d86d2121b9 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -1246,6 +1246,8 @@ static int dp_ctrl_link_train(struct dp_ctrl_private *ctrl,
 	link_info.rate = ctrl->link->link_params.rate;
 	link_info.capabilities = DP_LINK_CAP_ENHANCED_FRAMING;
 
+	dp_link_reset_phy_params_vx_px(ctrl->link);
+
 	dp_aux_link_configure(ctrl->aux, &link_info);
 	drm_dp_dpcd_write(ctrl->aux, DP_MAIN_LINK_CHANNEL_CODING_SET,
 				&encoding, 1);
-- 
2.43.0

[PATCH 5.10 106/151] mmc: mmc_test: Fix NULL dereference on allocation failure

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@linaro.org>

[ Upstream commit a1e627af32ed60713941cbfc8075d44cad07f6dd ]

If the "test->highmem = alloc_pages()" allocation fails then calling
__free_pages(test->highmem) will result in a NULL dereference.  Also
change the error code to -ENOMEM instead of returning success.

Fixes: 2661081f5ab9 ("mmc_test: highmem tests")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/8c90be28-67b4-4b0d-a105-034dc72a0b31@stanley.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/core/mmc_test.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
index b9b6f000154bb..9ebd5cebd4e13 100644
--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -3125,13 +3125,13 @@ static ssize_t mtf_test_write(struct file *file, const char __user *buf,
 	test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
 #ifdef CONFIG_HIGHMEM
 	test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
+	if (!test->highmem) {
+		count = -ENOMEM;
+		goto free_test_buffer;
+	}
 #endif
 
-#ifdef CONFIG_HIGHMEM
-	if (test->buffer && test->highmem) {
-#else
 	if (test->buffer) {
-#endif
 		mutex_lock(&mmc_test_lock);
 		mmc_test_run(test, testcase);
 		mutex_unlock(&mmc_test_lock);
@@ -3139,6 +3139,7 @@ static ssize_t mtf_test_write(struct file *file, const char __user *buf,
 
 #ifdef CONFIG_HIGHMEM
 	__free_pages(test->highmem, BUFFER_ORDER);
+free_test_buffer:
 #endif
 	kfree(test->buffer);
 	kfree(test);
-- 
2.43.0

[PATCH 5.10 107/151] Bluetooth: MGMT: Add error handling to pair_device()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Griffin Kroah-Hartman <griffin@kroah.com>

commit 538fd3921afac97158d4177139a0ad39f056dbb2 upstream.

hci_conn_params_add() never checks for a NULL value and could lead to a NULL
pointer dereference causing a crash.

Fixed by adding error handling in the function.

Cc: Stable <stable@kernel.org>
Fixes: 5157b8a503fa ("Bluetooth: Fix initializing conn_params in scan phase")
Signed-off-by: Griffin Kroah-Hartman <griffin@kroah.com>
Reported-by: Yiwei Zhang <zhan4630@purdue.edu>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/bluetooth/mgmt.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2962,6 +2962,10 @@ static int pair_device(struct sock *sk,
 		 * will be kept and this function does nothing.
 		 */
 		p = hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
+		if (!p) {
+			err = -EIO;
+			goto unlock;
+		}
 
 		if (p->auto_connect == HCI_AUTO_CONN_EXPLICIT)
 			p->auto_connect = HCI_AUTO_CONN_DISABLED;

[PATCH 5.10 108/151] binfmt_misc: pass binfmt_misc flags to the interpreter

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Laurent Vivier <laurent@vivier.eu>

commit 2347961b11d4079deace3c81dceed460c08a8fc1 upstream.

It can be useful to the interpreter to know which flags are in use.

For instance, knowing if the preserve-argv[0] is in use would
allow to skip the pathname argument.

This patch uses an unused auxiliary vector, AT_FLAGS, to add a
flag to inform interpreter if the preserve-argv[0] is enabled.

Note by Helge Deller:
The real-world user of this patch is qemu-user, which needs to know
if it has to preserve the argv[0]. See Debian bug #970460.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: YunQiang Su <ysu@wavecomp.com>
URL: http://bugs.debian.org/970460
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Thorsten Glaser <tg@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/binfmt_elf.c              |    5 ++++-
 fs/binfmt_elf_fdpic.c        |    5 ++++-
 fs/binfmt_misc.c             |    4 +++-
 include/linux/binfmts.h      |    4 ++++
 include/uapi/linux/binfmts.h |    4 ++++
 5 files changed, 19 insertions(+), 3 deletions(-)

--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -186,6 +186,7 @@ create_elf_tables(struct linux_binprm *b
 	unsigned char k_rand_bytes[16];
 	int items;
 	elf_addr_t *elf_info;
+	elf_addr_t flags = 0;
 	int ei_index;
 	const struct cred *cred = current_cred();
 	struct vm_area_struct *vma;
@@ -260,7 +261,9 @@ create_elf_tables(struct linux_binprm *b
 	NEW_AUX_ENT(AT_PHENT, sizeof(struct elf_phdr));
 	NEW_AUX_ENT(AT_PHNUM, exec->e_phnum);
 	NEW_AUX_ENT(AT_BASE, interp_load_addr);
-	NEW_AUX_ENT(AT_FLAGS, 0);
+	if (bprm->interp_flags & BINPRM_FLAGS_PRESERVE_ARGV0)
+		flags |= AT_FLAGS_PRESERVE_ARGV0;
+	NEW_AUX_ENT(AT_FLAGS, flags);
 	NEW_AUX_ENT(AT_ENTRY, e_entry);
 	NEW_AUX_ENT(AT_UID, from_kuid_munged(cred->user_ns, cred->uid));
 	NEW_AUX_ENT(AT_EUID, from_kuid_munged(cred->user_ns, cred->euid));
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -506,6 +506,7 @@ static int create_elf_fdpic_tables(struc
 	char __user *u_platform, *u_base_platform, *p;
 	int loop;
 	int nr;	/* reset for each csp adjustment */
+	unsigned long flags = 0;
 
 #ifdef CONFIG_MMU
 	/* In some cases (e.g. Hyper-Threading), we want to avoid L1 evictions
@@ -648,7 +649,9 @@ static int create_elf_fdpic_tables(struc
 	NEW_AUX_ENT(AT_PHENT,	sizeof(struct elf_phdr));
 	NEW_AUX_ENT(AT_PHNUM,	exec_params->hdr.e_phnum);
 	NEW_AUX_ENT(AT_BASE,	interp_params->elfhdr_addr);
-	NEW_AUX_ENT(AT_FLAGS,	0);
+	if (bprm->interp_flags & BINPRM_FLAGS_PRESERVE_ARGV0)
+		flags |= AT_FLAGS_PRESERVE_ARGV0;
+	NEW_AUX_ENT(AT_FLAGS,	flags);
 	NEW_AUX_ENT(AT_ENTRY,	exec_params->entry_addr);
 	NEW_AUX_ENT(AT_UID,	(elf_addr_t) from_kuid_munged(cred->user_ns, cred->uid));
 	NEW_AUX_ENT(AT_EUID,	(elf_addr_t) from_kuid_munged(cred->user_ns, cred->euid));
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -191,7 +191,9 @@ static int load_misc_binary(struct linux
 	if (bprm->interp_flags & BINPRM_FLAGS_PATH_INACCESSIBLE)
 		goto ret;
 
-	if (!(fmt->flags & MISC_FMT_PRESERVE_ARGV0)) {
+	if (fmt->flags & MISC_FMT_PRESERVE_ARGV0) {
+		bprm->interp_flags |= BINPRM_FLAGS_PRESERVE_ARGV0;
+	} else {
 		retval = remove_arg_zero(bprm);
 		if (retval)
 			goto ret;
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -73,6 +73,10 @@ struct linux_binprm {
 #define BINPRM_FLAGS_PATH_INACCESSIBLE_BIT 2
 #define BINPRM_FLAGS_PATH_INACCESSIBLE (1 << BINPRM_FLAGS_PATH_INACCESSIBLE_BIT)
 
+/* preserve argv0 for the interpreter  */
+#define BINPRM_FLAGS_PRESERVE_ARGV0_BIT 3
+#define BINPRM_FLAGS_PRESERVE_ARGV0 (1 << BINPRM_FLAGS_PRESERVE_ARGV0_BIT)
+
 /* Function parameter for binfmt->coredump */
 struct coredump_params {
 	const kernel_siginfo_t *siginfo;
--- a/include/uapi/linux/binfmts.h
+++ b/include/uapi/linux/binfmts.h
@@ -18,4 +18,8 @@ struct pt_regs;
 /* sizeof(linux_binprm->buf) */
 #define BINPRM_BUF_SIZE 256
 
+/* preserve argv0 for the interpreter  */
+#define AT_FLAGS_PRESERVE_ARGV0_BIT 0
+#define AT_FLAGS_PRESERVE_ARGV0 (1 << AT_FLAGS_PRESERVE_ARGV0_BIT)
+
 #endif /* _UAPI_LINUX_BINFMTS_H */

[PATCH 5.10 109/151] MIPS: Loongson64: Set timer mode in cpu-probe

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jiaxun Yang <jiaxun.yang@flygoat.com>

commit 1cb6ab446424649f03c82334634360c2e3043684 upstream.

Loongson64 C and G processors have EXTIMER feature which
is conflicting with CP0 counter.

Although the processor resets in EXTIMER disabled & INTIMER
enabled mode, which is compatible with MIPS CP0 compare, firmware
may attempt to enable EXTIMER and interfere CP0 compare.

Set timer mode back to MIPS compatible mode to fix booting on
systems with such firmware before we have an actual driver for
EXTIMER.

Cc: stable@vger.kernel.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/mips/kernel/cpu-probe.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1769,12 +1769,16 @@ static inline void cpu_probe_loongson(st
 		c->ases |= (MIPS_ASE_LOONGSON_MMI | MIPS_ASE_LOONGSON_CAM |
 			MIPS_ASE_LOONGSON_EXT | MIPS_ASE_LOONGSON_EXT2);
 		c->ases &= ~MIPS_ASE_VZ; /* VZ of Loongson-3A2000/3000 is incomplete */
+		change_c0_config6(LOONGSON_CONF6_EXTIMER | LOONGSON_CONF6_INTIMER,
+				  LOONGSON_CONF6_INTIMER);
 		break;
 	case PRID_IMP_LOONGSON_64G:
 		__cpu_name[cpu] = "ICT Loongson-3";
 		set_elf_platform(cpu, "loongson3a");
 		set_isa(c, MIPS_CPU_ISA_M64R2);
 		decode_cpucfg(c);
+		change_c0_config6(LOONGSON_CONF6_EXTIMER | LOONGSON_CONF6_INTIMER,
+				  LOONGSON_CONF6_INTIMER);
 		break;
 	default:
 		panic("Unknown Loongson Processor ID!");

[PATCH 5.10 110/151] HID: wacom: Defer calculation of resolution until resolution_code is known

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jason Gerecke <jason.gerecke@wacom.com>

commit 1b8f9c1fb464968a5b18d3acc1da8c00bad24fad upstream.

The Wacom driver maps the HID_DG_TWIST usage to ABS_Z (rather than ABS_RZ)
for historic reasons. When the code to support twist was introduced in
commit 50066a042da5 ("HID: wacom: generic: Add support for height, tilt,
and twist usages"), we were careful to write it in such a way that it had
HID calculate the resolution of the twist axis assuming ABS_RZ instead
(so that we would get correct angular behavior). This was broken with
the introduction of commit 08a46b4190d3 ("HID: wacom: Set a default
resolution for older tablets"), which moved the resolution calculation
to occur *before* the adjustment from ABS_Z to ABS_RZ occurred.

This commit moves the calculation of resolution after the point that
we are finished setting things up for its proper use.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Fixes: 08a46b4190d3 ("HID: wacom: Set a default resolution for older tablets")
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/wacom_wac.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1920,12 +1920,14 @@ static void wacom_map_usage(struct input
 	int fmax = field->logical_maximum;
 	unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
 	int resolution_code = code;
-	int resolution = hidinput_calc_abs_res(field, resolution_code);
+	int resolution;
 
 	if (equivalent_usage == HID_DG_TWIST) {
 		resolution_code = ABS_RZ;
 	}
 
+	resolution = hidinput_calc_abs_res(field, resolution_code);
+
 	if (equivalent_usage == HID_GD_X) {
 		fmin += features->offset_left;
 		fmax -= features->offset_right;

[PATCH 5.10 111/151] HID: microsoft: Add rumble support to latest xbox controllers

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Siarhei Vishniakou <svv@google.com>

commit f5554725f30475b05b5178b998366f11ecb50c7f upstream.

Currently, rumble is only supported via bluetooth on a single xbox
controller, called 'model 1708'. On the back of the device, it's named
'wireless controller for xbox one'. However, in 2021, Microsoft released
a firmware update for this controller. As part of this update, the HID
descriptor of the device changed. The product ID was also changed from
0x02fd to 0x0b20. On this controller, rumble was supported via
hid-microsoft, which matched against the old product id (0x02fd). As a
result, the firmware update broke rumble support on this controller.

See:
https://news.xbox.com/en-us/2021/09/08/xbox-controller-firmware-update-rolling-out-to-insiders-starting-today/

The hid-microsoft driver actually supports rumble on the new firmware,
as well. So simply adding new product id is sufficient to bring back
this support.

After discussing further with the xbox team, it was pointed out that
another xbox controller, xbox elite series 2, can be supported in a
similar way.

Add rumble support for all of these devices in this patch. Two of the
devices have received firmware updates that caused their product id's to
change. Both old and new firmware versions of these devices were tested.

The tested controllers are:

1. 'wireless controller for xbox one', model 1708
2. 'xbox wireless controller', model 1914. This is also sometimes
   referred to as 'xbox series S|X'.
3. 'elite series 2', model 1797.

The tested configurations are:
1. model 1708, pid 0x02fd (old firmware)
2. model 1708, pid 0x0b20 (new firmware)
3. model 1914, pid 0x0b13
4. model 1797, pid 0x0b05 (old firmware)
5. model 1797, pid 0x0b22 (new firmware)

I verified rumble support on both bluetooth and usb.

Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Siarhei Vishniakou <svv@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-ids.h       |   10 +++++++++-
 drivers/hid/hid-microsoft.c |   11 ++++++++++-
 2 files changed, 19 insertions(+), 2 deletions(-)

--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -875,7 +875,15 @@
 #define USB_DEVICE_ID_MS_TYPE_COVER_2    0x07a9
 #define USB_DEVICE_ID_MS_POWER_COVER     0x07da
 #define USB_DEVICE_ID_MS_SURFACE3_COVER		0x07de
-#define USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER	0x02fd
+/*
+ * For a description of the Xbox controller models, refer to:
+ * https://en.wikipedia.org/wiki/Xbox_Wireless_Controller#Summary
+ */
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708	0x02fd
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708_BLE	0x0b20
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1914	0x0b13
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797	0x0b05
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797_BLE	0x0b22
 #define USB_DEVICE_ID_MS_PIXART_MOUSE    0x00cb
 #define USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS      0x02e0
 #define USB_DEVICE_ID_MS_MOUSE_0783      0x0783
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -446,7 +446,16 @@ static const struct hid_device_id ms_dev
 		.driver_data = MS_PRESENTER },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, 0x091B),
 		.driver_data = MS_SURFACE_DIAL },
-	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER),
+
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708),
+		.driver_data = MS_QUIRK_FF },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708_BLE),
+		.driver_data = MS_QUIRK_FF },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1914),
+		.driver_data = MS_QUIRK_FF },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797),
+		.driver_data = MS_QUIRK_FF },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797_BLE),
 		.driver_data = MS_QUIRK_FF },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS),
 		.driver_data = MS_QUIRK_FF },

[PATCH 5.10 112/151] cxgb4: add forgotten u64 ivlan cast before shift

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nikolay Kuratov <kniv@yandex-team.ru>

commit 80a1e7b83bb1834b5568a3872e64c05795d88f31 upstream.

It is done everywhere in cxgb4 code, e.g. in is_filter_exact_match()
There is no reason it should not be done here

Found by Linux Verification Center (linuxtesting.org) with SVACE

Signed-off-by: Nikolay Kuratov <kniv@yandex-team.ru>
Cc: stable@vger.kernel.org
Fixes: 12b276fbf6e0 ("cxgb4: add support to create hash filters")
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240819075408.92378-1-kniv@yandex-team.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
@@ -1244,7 +1244,8 @@ static u64 hash_filter_ntuple(struct ch_
 	 * in the Compressed Filter Tuple.
 	 */
 	if (tp->vlan_shift >= 0 && fs->mask.ivlan)
-		ntuple |= (FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift;
+		ntuple |= (u64)(FT_VLAN_VLD_F |
+				fs->val.ivlan) << tp->vlan_shift;
 
 	if (tp->port_shift >= 0 && fs->mask.iport)
 		ntuple |= (u64)fs->val.iport << tp->port_shift;

[PATCH 5.10 113/151] KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marc Zyngier <maz@kernel.org>

commit 3e6245ebe7ef341639e9a7e402b3ade8ad45a19f upstream.

On a system with a GICv3, if a guest hasn't been configured with
GICv3 and that the host is not capable of GICv2 emulation,
a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2.

We therefore try to emulate the SGI access, only to hit a NULL
pointer as no private interrupt is allocated (no GIC, remember?).

The obvious fix is to give the guest what it deserves, in the
shape of a UNDEF exception.

Reported-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240820100349.3544850-2-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kvm/sys_regs.c  |    6 ++++++
 arch/arm64/kvm/vgic/vgic.h |    7 +++++++
 2 files changed, 13 insertions(+)

--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -30,6 +30,7 @@
 #include <trace/events/kvm.h>
 
 #include "sys_regs.h"
+#include "vgic/vgic.h"
 
 #include "trace.h"
 
@@ -275,6 +276,11 @@ static bool access_gic_sgi(struct kvm_vc
 {
 	bool g1;
 
+	if (!kvm_has_gicv3(vcpu->kvm)) {
+		kvm_inject_undefined(vcpu);
+		return false;
+	}
+
 	if (!p->is_write)
 		return read_from_write_only(vcpu, p, r);
 
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -318,4 +318,11 @@ int vgic_v4_init(struct kvm *kvm);
 void vgic_v4_teardown(struct kvm *kvm);
 void vgic_v4_configure_vsgis(struct kvm *kvm);
 
+static inline bool kvm_has_gicv3(struct kvm *kvm)
+{
+	return (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif) &&
+		irqchip_in_kernel(kvm) &&
+		kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3);
+}
+
 #endif

[PATCH 5.10 114/151] mmc: dw_mmc: allow biu and ciu clocks to defer

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Whitten <ben.whitten@gmail.com>

commit 6275c7bc8dd07644ea8142a1773d826800f0f3f7 upstream.

Fix a race condition if the clock provider comes up after mmc is probed,
this causes mmc to fail without retrying.
When given the DEFER error from the clk source, pass it on up the chain.

Fixes: f90a0612f0e1 ("mmc: dw_mmc: lookup for optional biu and ciu clocks")
Signed-off-by: Ben Whitten <ben.whitten@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240811212212.123255-1-ben.whitten@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/dw_mmc.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -3171,6 +3171,10 @@ int dw_mci_probe(struct dw_mci *host)
 	host->biu_clk = devm_clk_get(host->dev, "biu");
 	if (IS_ERR(host->biu_clk)) {
 		dev_dbg(host->dev, "biu clock not available\n");
+		ret = PTR_ERR(host->biu_clk);
+		if (ret == -EPROBE_DEFER)
+			return ret;
+
 	} else {
 		ret = clk_prepare_enable(host->biu_clk);
 		if (ret) {
@@ -3182,6 +3186,10 @@ int dw_mci_probe(struct dw_mci *host)
 	host->ciu_clk = devm_clk_get(host->dev, "ciu");
 	if (IS_ERR(host->ciu_clk)) {
 		dev_dbg(host->dev, "ciu clock not available\n");
+		ret = PTR_ERR(host->ciu_clk);
+		if (ret == -EPROBE_DEFER)
+			goto err_clk_biu;
+
 		host->bus_hz = host->pdata->bus_hz;
 	} else {
 		ret = clk_prepare_enable(host->ciu_clk);

[PATCH 5.10 115/151] Revert "drm/amd/display: Validate hw_points_num before using it"

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Hung <alex.hung@amd.com>

commit 8f4bdbc8e99db6ec9cb0520748e49a2f2d7d1727 upstream.

This reverts commit 58c3b3341cea4f75dc8c003b89f8a6dd8ec55e50.

[WHY & HOW]
The writeback series cause a regression in thunderbolt display.

Signed-off-by: Alex Hung <alex.hung@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c
@@ -243,9 +243,6 @@ static bool dwb3_program_ogam_lut(
 		return false;
 	}
 
-	if (params->hw_points_num == 0)
-		return false;
-
 	REG_SET(DWB_OGAM_CONTROL, 0, DWB_OGAM_MODE, 2);
 
 	current_mode = dwb3_get_ogam_current(dwbc30);

[PATCH 5.10 116/151] ALSA: timer: Relax start tick time check for slave timer elements

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@suse.de>

commit ccbfcac05866ebe6eb3bc6d07b51d4ed4fcde436 upstream.

The recent addition of a sanity check for a too low start tick time
seems breaking some applications that uses aloop with a certain slave
timer setup.  They may have the initial resolution 0, hence it's
treated as if it were a too low value.

Relax and skip the check for the slave timer instance for addressing
the regression.

Fixes: 4a63bd179fa8 ("ALSA: timer: Set lower bound of start tick time")
Cc: <stable@vger.kernel.org>
Link: https://github.com/raspberrypi/linux/issues/6294
Link: https://patch.msgid.link/20240810084833.10939-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/timer.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -556,7 +556,7 @@ static int snd_timer_start1(struct snd_t
 	/* check the actual time for the start tick;
 	 * bail out as error if it's way too low (< 100us)
 	 */
-	if (start) {
+	if (start && !(timer->hw.flags & SNDRV_TIMER_HW_SLAVE)) {
 		if ((u64)snd_timer_hw_resolution(timer) * ticks < 100000) {
 			result = -EINVAL;
 			goto unlock;

[PATCH 5.10 117/151] nfsd: Dont call freezable_schedule_timeout() after each successful page allocation in svc_alloc_arg().

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kuniyuki Iwashima <kuniyu@amazon.com>

When commit 390390240145 ("nfsd: don't allow nfsd threads to be
signalled.") is backported to 5.10, it was adjusted considering commit
3feac2b55293 ("sunrpc: exclude from freezer when waiting for requests:").

However, 3feac2b55293 is based on commit f6e70aab9dfe ("SUNRPC: refresh
rq_pages using a bulk page allocator"), which converted page-by-page
allocation to a batch allocation, so schedule_timeout() is placed
un-nested.

As a result, the backported commit 7229200f6866 ("nfsd: don't allow nfsd
threads to be signalled.") placed freezable_schedule_timeout() in the wrong
place.

Now, freezable_schedule_timeout() is called after every successful page
allocation, and we see 30%+ performance regression on 5.10.220 in our
test suite.

Let's move it to the correct place so that freezable_schedule_timeout()
is called only when page allocation fails.

Fixes: 7229200f6866 ("nfsd: don't allow nfsd threads to be signalled.")
Reported-by: Hughdan Liu <hughliu@amazon.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sunrpc/svc_xprt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -679,8 +679,8 @@ static int svc_alloc_arg(struct svc_rqst
 					set_current_state(TASK_RUNNING);
 					return -EINTR;
 				}
+				freezable_schedule_timeout(msecs_to_jiffies(500));
 			}
-			freezable_schedule_timeout(msecs_to_jiffies(500));
 			rqstp->rq_pages[i] = p;
 		}
 	rqstp->rq_page_end = &rqstp->rq_pages[i];

[PATCH 5.10 118/151] Bluetooth: hci_ldisc: check HCI_UART_PROTO_READY flag in HCIUARTGETPROTO

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lee, Chun-Yi <joeyli.kernel@gmail.com>

commit 9c33663af9ad115f90c076a1828129a3fbadea98 upstream.

This patch adds code to check HCI_UART_PROTO_READY flag before
accessing hci_uart->proto. It fixes the race condition in
hci_uart_tty_ioctl() between HCIUARTSETPROTO and HCIUARTGETPROTO.
This issue bug found by Yu Hao and Weiteng Chen:

BUG: general protection fault in hci_uart_tty_ioctl [1]

The information of C reproducer can also reference the link [2]

Reported-by: Yu Hao <yhao016@ucr.edu>
Closes: https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g@mail.gmail.com/ [1]
Reported-by: Weiteng Chen <wchen130@ucr.edu>
Closes: https://lore.kernel.org/lkml/CA+UBctDPEvHdkHMwD340=n02rh+jNRJNNQ5LBZNA+Wm4Keh2ow@mail.gmail.com/T/ [2]
Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bluetooth/hci_ldisc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -768,7 +768,8 @@ static int hci_uart_tty_ioctl(struct tty
 		break;
 
 	case HCIUARTGETPROTO:
-		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
+		if (test_bit(HCI_UART_PROTO_SET, &hu->flags) &&
+		    test_bit(HCI_UART_PROTO_READY, &hu->flags))
 			err = hu->proto->id;
 		else
 			err = -EUNATCH;

[PATCH 5.10 119/151] Input: MT - limit max slots

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

commit 99d3bf5f7377d42f8be60a6b9cb60fb0be34dceb upstream.

syzbot is reporting too large allocation at input_mt_init_slots(), for
num_slots is supplied from userspace using ioctl(UI_DEV_CREATE).

Since nobody knows possible max slots, this patch chose 1024.

Reported-by: syzbot <syzbot+0122fa359a69694395d5@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=0122fa359a69694395d5
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/input-mt.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -45,6 +45,9 @@ int input_mt_init_slots(struct input_dev
 		return 0;
 	if (mt)
 		return mt->num_slots != num_slots ? -EINVAL : 0;
+	/* Arbitrary limit for avoiding too large memory allocation. */
+	if (num_slots > 1024)
+		return -EINVAL;
 
 	mt = kzalloc(struct_size(mt, slots, num_slots), GFP_KERNEL);
 	if (!mt)

[PATCH 5.10 120/151] tools: move alignment-related macros to new <linux/align.h>

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Lobakin <aleksander.lobakin@intel.com>

commit 10a04ff09bcc39e0044190ffe9f00f998f13647c upstream.

Currently, tools have *ALIGN*() macros scattered across the unrelated
headers, as there are only 3 of them and they were added separately
each time on an as-needed basis.
Anyway, let's make it more consistent with the kernel headers and allow
using those macros outside of the mentioned headers. Create
<linux/align.h> inside the tools/ folder and include it where needed.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/include/linux/align.h  |   12 ++++++++++++
 tools/include/linux/bitmap.h |    2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 tools/include/linux/align.h

--- /dev/null
+++ b/tools/include/linux/align.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _TOOLS_LINUX_ALIGN_H
+#define _TOOLS_LINUX_ALIGN_H
+
+#include <uapi/linux/const.h>
+
+#define ALIGN(x, a)		__ALIGN_KERNEL((x), (a))
+#define ALIGN_DOWN(x, a)	__ALIGN_KERNEL((x) - ((a) - 1), (a))
+#define IS_ALIGNED(x, a)	(((x) & ((typeof(x))(a) - 1)) == 0)
+
+#endif /* _TOOLS_LINUX_ALIGN_H */
--- a/tools/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -3,6 +3,7 @@
 #define _PERF_BITOPS_H
 
 #include <string.h>
+#include <linux/align.h>
 #include <linux/bitops.h>
 #include <stdlib.h>
 #include <linux/kernel.h>
@@ -166,7 +167,6 @@ static inline int bitmap_and(unsigned lo
 #define BITMAP_MEM_ALIGNMENT (8 * sizeof(unsigned long))
 #endif
 #define BITMAP_MEM_MASK (BITMAP_MEM_ALIGNMENT - 1)
-#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
 
 static inline int bitmap_equal(const unsigned long *src1,
 			const unsigned long *src2, unsigned int nbits)

[PATCH 5.10 121/151] drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jesse Zhang <jesse.zhang@amd.com>

commit 88a9a467c548d0b3c7761b4fd54a68e70f9c0944 upstream.

Initialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001.
V2: To really improve the handling we would actually
   need to have a separate value of 0xffffffff.(Christian)

Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Vamsi Krishna Brahmajosyula <vamsi-krishna.brahmajosyula@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -725,7 +725,8 @@ int amdgpu_vce_ring_parse_cs(struct amdg
 	uint32_t created = 0;
 	uint32_t allocated = 0;
 	uint32_t tmp, handle = 0;
-	uint32_t *size = &tmp;
+	uint32_t dummy = 0xffffffff;
+	uint32_t *size = &dummy;
 	unsigned idx;
 	int i, r = 0;
 

[PATCH 5.10 122/151] KVM: arm64: Dont use cbz/adr with external symbols

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sami Tolvanen <samitolvanen@google.com>

commit dbaee836d60a8e1b03e7d53a37893235662ba124 upstream.

allmodconfig + CONFIG_LTO_CLANG_THIN=y fails to build due to following
linker errors:

  ld.lld: error: irqbypass.c:(function __guest_enter: .text+0x21CC):
  relocation R_AARCH64_CONDBR19 out of range: 2031220 is not in
  [-1048576, 1048575]; references hyp_panic
  >>> defined in vmlinux.o

  ld.lld: error: irqbypass.c:(function __guest_enter: .text+0x21E0):
  relocation R_AARCH64_ADR_PREL_LO21 out of range: 2031200 is not in
  [-1048576, 1048575]; references hyp_panic
  >>> defined in vmlinux.o

This is because with LTO, the compiler ends up placing hyp_panic()
more than 1MB away from __guest_enter(). Use an unconditional branch
and adr_l instead to fix the issue.

Link: https://github.com/ClangBuiltLinux/linux/issues/1317
Reported-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Marc Zyngier <maz@kernel.org>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210305202124.3768527-1-samitolvanen@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kvm/hyp/entry.S |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/arch/arm64/kvm/hyp/entry.S
+++ b/arch/arm64/kvm/hyp/entry.S
@@ -85,8 +85,10 @@ SYM_INNER_LABEL(__guest_exit_panic, SYM_
 
 	// If the hyp context is loaded, go straight to hyp_panic
 	get_loaded_vcpu x0, x1
-	cbz	x0, hyp_panic
+	cbnz	x0, 1f
+	b	hyp_panic
 
+1:
 	// The hyp context is saved so make sure it is restored to allow
 	// hyp_panic to run at hyp and, subsequently, panic to run in the host.
 	// This makes use of __guest_exit to avoid duplication but sets the
@@ -94,7 +96,7 @@ SYM_INNER_LABEL(__guest_exit_panic, SYM_
 	// current state is saved to the guest context but it will only be
 	// accurate if the guest had been completely restored.
 	adr_this_cpu x0, kvm_hyp_ctxt, x1
-	adr	x1, hyp_panic
+	adr_l	x1, hyp_panic
 	str	x1, [x0, #CPU_XREG_OFFSET(30)]
 
 	get_vcpu_ptr	x1, x0

[PATCH 5.10 123/151] pinctrl: rockchip: correct RK3328 iomux width flag for GPIO2-B pins

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Huang-Huang Bao <i@eh5.me>

commit 128f71fe014fc91efa1407ce549f94a9a9f1072c upstream.

The base iomux offsets for each GPIO pin line are accumulatively
calculated based off iomux width flag in rockchip_pinctrl_get_soc_data.
If the iomux width flag is one of IOMUX_WIDTH_4BIT, IOMUX_WIDTH_3BIT or
IOMUX_WIDTH_2BIT, the base offset for next pin line would increase by 8
bytes, otherwise it would increase by 4 bytes.

Despite most of GPIO2-B iomux have 2-bit data width, which can be fit
into 4 bytes space with write mask, it actually take 8 bytes width for
whole GPIO2-B line.

Commit e8448a6c817c ("pinctrl: rockchip: fix pinmux bits for RK3328
GPIO2-B pins") wrongly set iomux width flag to 0, causing all base
iomux offset for line after GPIO2-B to be calculated wrong. Fix the
iomux width flag to IOMUX_WIDTH_2BIT so the offset after GPIO2-B is
correctly increased by 8, matching the actual width of GPIO2-B iomux.

Fixes: e8448a6c817c ("pinctrl: rockchip: fix pinmux bits for RK3328 GPIO2-B pins")
Cc: stable@vger.kernel.org
Reported-by: Richard Kojedzinszky <richard@kojedz.in>
Closes: https://lore.kernel.org/linux-rockchip/4f29b743202397d60edfb3c725537415@kojedz.in/
Tested-by: Richard Kojedzinszky <richard@kojedz.in>
Signed-off-by: Huang-Huang Bao <i@eh5.me>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Trevor Woerner <twoerner@gmail.com>
Link: https://lore.kernel.org/20240709105428.1176375-1-i@eh5.me
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/pinctrl-rockchip.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -3695,7 +3695,7 @@ static struct rockchip_pin_bank rk3328_p
 	PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
 	PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
 	PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
-			     0,
+			     IOMUX_WIDTH_2BIT,
 			     IOMUX_WIDTH_3BIT,
 			     0),
 	PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",

[PATCH 5.10 124/151] pinctrl: single: fix potential NULL dereference in pcs_get_function()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ma Ke <make24@iscas.ac.cn>

commit 1c38a62f15e595346a1106025722869e87ffe044 upstream.

pinmux_generic_get_function() can return NULL and the pointer 'function'
was dereferenced without checking against NULL. Add checking of pointer
'function' in pcs_get_function().

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 571aec4df5b7 ("pinctrl: single: Use generic pinmux helpers for managing functions")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://lore.kernel.org/20240808041355.2766009-1-make24@iscas.ac.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/pinctrl-single.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -350,6 +350,8 @@ static int pcs_get_function(struct pinct
 		return -ENOTSUPP;
 	fselector = setting->func;
 	function = pinmux_generic_get_function(pctldev, fselector);
+	if (!function)
+		return -EINVAL;
 	*func = function->data;
 	if (!(*func)) {
 		dev_err(pcs->dev, "%s could not find function%i\n",

[PATCH 5.10 125/151] wifi: mwifiex: duplicate static structs used in driver instances

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sascha Hauer <s.hauer@pengutronix.de>

commit 27ec3c57fcadb43c79ed05b2ea31bc18c72d798a upstream.

mwifiex_band_2ghz and mwifiex_band_5ghz are statically allocated, but
used and modified in driver instances. Duplicate them before using
them in driver instances so that different driver instances do not
influence each other.

This was observed on a board which has one PCIe and one SDIO mwifiex
adapter. It blew up in mwifiex_setup_ht_caps(). This was called with
the statically allocated struct which is modified in this function.

Cc: stable@vger.kernel.org
Fixes: d6bffe8bb520 ("mwifiex: support for creation of AP interface")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240809-mwifiex-duplicate-static-structs-v1-1-6837b903b1a4@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/marvell/mwifiex/cfg80211.c |   32 +++++++++++++++++++-----
 1 file changed, 26 insertions(+), 6 deletions(-)

--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -4314,11 +4314,27 @@ int mwifiex_register_cfg80211(struct mwi
 	if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
 		wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
 
-	wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
-	if (adapter->config_bands & BAND_A)
-		wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
-	else
+	wiphy->bands[NL80211_BAND_2GHZ] = devm_kmemdup(adapter->dev,
+						       &mwifiex_band_2ghz,
+						       sizeof(mwifiex_band_2ghz),
+						       GFP_KERNEL);
+	if (!wiphy->bands[NL80211_BAND_2GHZ]) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	if (adapter->config_bands & BAND_A) {
+		wiphy->bands[NL80211_BAND_5GHZ] = devm_kmemdup(adapter->dev,
+							       &mwifiex_band_5ghz,
+							       sizeof(mwifiex_band_5ghz),
+							       GFP_KERNEL);
+		if (!wiphy->bands[NL80211_BAND_5GHZ]) {
+			ret = -ENOMEM;
+			goto err;
+		}
+	} else {
 		wiphy->bands[NL80211_BAND_5GHZ] = NULL;
+	}
 
 	if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
 		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
@@ -4411,8 +4427,7 @@ int mwifiex_register_cfg80211(struct mwi
 	if (ret < 0) {
 		mwifiex_dbg(adapter, ERROR,
 			    "%s: wiphy_register failed: %d\n", __func__, ret);
-		wiphy_free(wiphy);
-		return ret;
+		goto err;
 	}
 
 	if (!adapter->regd) {
@@ -4454,4 +4469,9 @@ int mwifiex_register_cfg80211(struct mwi
 
 	adapter->wiphy = wiphy;
 	return ret;
+
+err:
+	wiphy_free(wiphy);
+
+	return ret;
 }

[PATCH 5.10 126/151] mptcp: sched: check both backup in retrans

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matthieu Baerts (NGI0) <matttbe@kernel.org>

commit 2a1f596ebb23eadc0f9b95a8012e18ef76295fc8 upstream.

The 'mptcp_subflow_context' structure has two items related to the
backup flags:

 - 'backup': the subflow has been marked as backup by the other peer

 - 'request_bkup': the backup flag has been set by the host

Looking only at the 'backup' flag can make sense in some cases, but it
is not the behaviour of the default packet scheduler when selecting
paths.

As explained in the commit b6a66e521a20 ("mptcp: sched: check both
directions for backup"), the packet scheduler should look at both flags,
because that was the behaviour from the beginning: the 'backup' flag was
set by accident instead of the 'request_bkup' one. Now that the latter
has been fixed, get_retrans() needs to be adapted as well.

Fixes: b6a66e521a20 ("mptcp: sched: check both directions for backup")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240826-net-mptcp-close-extra-sf-fin-v1-3-905199fe1172@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mptcp/protocol.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -1664,7 +1664,7 @@ static struct sock *mptcp_subflow_get_re
 			return NULL;
 		}
 
-		if (subflow->backup) {
+		if (subflow->backup || subflow->request_bkup) {
 			if (!backup)
 				backup = ssk;
 			continue;

[PATCH 5.10 127/151] ipc: replace costly bailout check in sysvipc_find_ipc()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Rafael Aquini <aquini@redhat.com>

commit 20401d1058f3f841f35a594ac2fc1293710e55b9 upstream.

sysvipc_find_ipc() was left with a costly way to check if the offset
position fed to it is bigger than the total number of IPC IDs in use.  So
much so that the time it takes to iterate over /proc/sysvipc/* files grows
exponentially for a custom benchmark that creates "N" SYSV shm segments
and then times the read of /proc/sysvipc/shm (milliseconds):

    12 msecs to read   1024 segs from /proc/sysvipc/shm
    18 msecs to read   2048 segs from /proc/sysvipc/shm
    65 msecs to read   4096 segs from /proc/sysvipc/shm
   325 msecs to read   8192 segs from /proc/sysvipc/shm
  1303 msecs to read  16384 segs from /proc/sysvipc/shm
  5182 msecs to read  32768 segs from /proc/sysvipc/shm

The root problem lies with the loop that computes the total amount of ids
in use to check if the "pos" feeded to sysvipc_find_ipc() grew bigger than
"ids->in_use".  That is a quite inneficient way to get to the maximum
index in the id lookup table, specially when that value is already
provided by struct ipc_ids.max_idx.

This patch follows up on the optimization introduced via commit
15df03c879836 ("sysvipc: make get_maxid O(1) again") and gets rid of the
aforementioned costly loop replacing it by a simpler checkpoint based on
ipc_get_maxidx() returned value, which allows for a smooth linear increase
in time complexity for the same custom benchmark:

     2 msecs to read   1024 segs from /proc/sysvipc/shm
     2 msecs to read   2048 segs from /proc/sysvipc/shm
     4 msecs to read   4096 segs from /proc/sysvipc/shm
     9 msecs to read   8192 segs from /proc/sysvipc/shm
    19 msecs to read  16384 segs from /proc/sysvipc/shm
    39 msecs to read  32768 segs from /proc/sysvipc/shm

Link: https://lkml.kernel.org/r/20210809203554.1562989-1-aquini@redhat.com
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Waiman Long <llong@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Hugo SIMELIERE <hsimeliere.opensource@witekio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 ipc/util.c |   16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

--- a/ipc/util.c
+++ b/ipc/util.c
@@ -754,21 +754,13 @@ struct pid_namespace *ipc_seq_pid_ns(str
 static struct kern_ipc_perm *sysvipc_find_ipc(struct ipc_ids *ids, loff_t pos,
 					      loff_t *new_pos)
 {
-	struct kern_ipc_perm *ipc;
-	int total, id;
+	struct kern_ipc_perm *ipc = NULL;
+	int max_idx = ipc_get_maxidx(ids);
 
-	total = 0;
-	for (id = 0; id < pos && total < ids->in_use; id++) {
-		ipc = idr_find(&ids->ipcs_idr, id);
-		if (ipc != NULL)
-			total++;
-	}
-
-	ipc = NULL;
-	if (total >= ids->in_use)
+	if (max_idx == -1 || pos > max_idx)
 		goto out;
 
-	for (; pos < ipc_mni; pos++) {
+	for (; pos <= max_idx; pos++) {
 		ipc = idr_find(&ids->ipcs_idr, pos);
 		if (ipc != NULL) {
 			rcu_read_lock();

[PATCH 5.10 128/151] drm/amdkfd: dont allow mapping the MMIO HDP page with large pages

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

commit be4a2a81b6b90d1a47eaeaace4cc8e2cb57b96c7 upstream.

We don't get the right offset in that case.  The GPU has
an unused 4K area of the register BAR space into which you can
remap registers.  We remap the HDP flush registers into this
space to allow userspace (CPU or GPU) to flush the HDP when it
updates VRAM.  However, on systems with >4K pages, we end up
exposing PAGE_SIZE of MMIO space.

Fixes: d8e408a82704 ("drm/amdkfd: Expose HDP registers to user space")
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1311,7 +1311,7 @@ static int kfd_ioctl_alloc_memory_of_gpu
 			goto err_unlock;
 		}
 		offset = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd);
-		if (!offset) {
+		if (!offset || (PAGE_SIZE > 4096)) {
 			err = -ENOMEM;
 			goto err_unlock;
 		}
@@ -1969,6 +1969,9 @@ static int kfd_mmio_mmap(struct kfd_dev
 	if (vma->vm_end - vma->vm_start != PAGE_SIZE)
 		return -EINVAL;
 
+	if (PAGE_SIZE > 4096)
+		return -EINVAL;
+
 	address = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd);
 
 	vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE |

[PATCH 5.10 129/151] media: uvcvideo: Fix integer overflow calculating timestamp

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ricardo Ribalda <ribalda@chromium.org>

commit 8676a5e796fa18f55897ca36a94b2adf7f73ebd1 upstream.

The function uvc_video_clock_update() supports a single SOF overflow. Or
in other words, the maximum difference between the first ant the last
timestamp can be 4096 ticks or 4.096 seconds.

This results in a maximum value for y2 of: 0x12FBECA00, that overflows
32bits.
y2 = (u32)ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1;

Extend the size of y2 to u64 to support all its values.

Without this patch:
 # yavta -s 1920x1080 -f YUYV -t 1/5 -c /dev/video0
Device /dev/v4l/by-id/usb-Shine-Optics_Integrated_Camera_0001-video-index0 opened.
Device `Integrated Camera: Integrated C' on `usb-0000:00:14.0-6' (driver 'uvcvideo') supports video, capture, without mplanes.
Video format set: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200
Video format: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200
Current frame rate: 1/5
Setting frame rate to: 1/5
Frame rate set: 1/5
8 buffers requested.
length: 4147200 offset: 0 timestamp type/source: mono/SoE
Buffer 0/0 mapped at address 0x7947ea94c000.
length: 4147200 offset: 4149248 timestamp type/source: mono/SoE
Buffer 1/0 mapped at address 0x7947ea557000.
length: 4147200 offset: 8298496 timestamp type/source: mono/SoE
Buffer 2/0 mapped at address 0x7947ea162000.
length: 4147200 offset: 12447744 timestamp type/source: mono/SoE
Buffer 3/0 mapped at address 0x7947e9d6d000.
length: 4147200 offset: 16596992 timestamp type/source: mono/SoE
Buffer 4/0 mapped at address 0x7947e9978000.
length: 4147200 offset: 20746240 timestamp type/source: mono/SoE
Buffer 5/0 mapped at address 0x7947e9583000.
length: 4147200 offset: 24895488 timestamp type/source: mono/SoE
Buffer 6/0 mapped at address 0x7947e918e000.
length: 4147200 offset: 29044736 timestamp type/source: mono/SoE
Buffer 7/0 mapped at address 0x7947e8d99000.
0 (0) [-] none 0 4147200 B 507.554210 508.874282 242.836 fps ts mono/SoE
1 (1) [-] none 2 4147200 B 508.886298 509.074289 0.751 fps ts mono/SoE
2 (2) [-] none 3 4147200 B 509.076362 509.274307 5.261 fps ts mono/SoE
3 (3) [-] none 4 4147200 B 509.276371 509.474336 5.000 fps ts mono/SoE
4 (4) [-] none 5 4147200 B 509.476394 509.674394 4.999 fps ts mono/SoE
5 (5) [-] none 6 4147200 B 509.676506 509.874345 4.997 fps ts mono/SoE
6 (6) [-] none 7 4147200 B 509.876430 510.074370 5.002 fps ts mono/SoE
7 (7) [-] none 8 4147200 B 510.076434 510.274365 5.000 fps ts mono/SoE
8 (0) [-] none 9 4147200 B 510.276421 510.474333 5.000 fps ts mono/SoE
9 (1) [-] none 10 4147200 B 510.476391 510.674429 5.001 fps ts mono/SoE
10 (2) [-] none 11 4147200 B 510.676434 510.874283 4.999 fps ts mono/SoE
11 (3) [-] none 12 4147200 B 510.886264 511.074349 4.766 fps ts mono/SoE
12 (4) [-] none 13 4147200 B 511.070577 511.274304 5.426 fps ts mono/SoE
13 (5) [-] none 14 4147200 B 511.286249 511.474301 4.637 fps ts mono/SoE
14 (6) [-] none 15 4147200 B 511.470542 511.674251 5.426 fps ts mono/SoE
15 (7) [-] none 16 4147200 B 511.672651 511.874337 4.948 fps ts mono/SoE
16 (0) [-] none 17 4147200 B 511.873988 512.074462 4.967 fps ts mono/SoE
17 (1) [-] none 18 4147200 B 512.075982 512.278296 4.951 fps ts mono/SoE
18 (2) [-] none 19 4147200 B 512.282631 512.482423 4.839 fps ts mono/SoE
19 (3) [-] none 20 4147200 B 518.986637 512.686333 0.149 fps ts mono/SoE
20 (4) [-] none 21 4147200 B 518.342709 512.886386 -1.553 fps ts mono/SoE
21 (5) [-] none 22 4147200 B 517.909812 513.090360 -2.310 fps ts mono/SoE
22 (6) [-] none 23 4147200 B 517.590775 513.294454 -3.134 fps ts mono/SoE
23 (7) [-] none 24 4147200 B 513.298465 513.494335 -0.233 fps ts mono/SoE
24 (0) [-] none 25 4147200 B 513.510273 513.698375 4.721 fps ts mono/SoE
25 (1) [-] none 26 4147200 B 513.698904 513.902327 5.301 fps ts mono/SoE
26 (2) [-] none 27 4147200 B 513.895971 514.102348 5.074 fps ts mono/SoE
27 (3) [-] none 28 4147200 B 514.099091 514.306337 4.923 fps ts mono/SoE
28 (4) [-] none 29 4147200 B 514.310348 514.510567 4.734 fps ts mono/SoE
29 (5) [-] none 30 4147200 B 514.509295 514.710367 5.026 fps ts mono/SoE
30 (6) [-] none 31 4147200 B 521.532513 514.914398 0.142 fps ts mono/SoE
31 (7) [-] none 32 4147200 B 520.885277 515.118385 -1.545 fps ts mono/SoE
32 (0) [-] none 33 4147200 B 520.411140 515.318336 -2.109 fps ts mono/SoE
33 (1) [-] none 34 4147200 B 515.325425 515.522278 -0.197 fps ts mono/SoE
34 (2) [-] none 35 4147200 B 515.538276 515.726423 4.698 fps ts mono/SoE
35 (3) [-] none 36 4147200 B 515.720767 515.930373 5.480 fps ts mono/SoE

Cc: stable@vger.kernel.org
Fixes: 66847ef013cc ("[media] uvcvideo: Add UVC timestamps support")
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20240610-hwtimestamp-followup-v1-2-f9eaed7be7f0@chromium.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/uvc/uvc_video.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -723,11 +723,11 @@ void uvc_video_clock_update(struct uvc_s
 	unsigned long flags;
 	u64 timestamp;
 	u32 delta_stc;
-	u32 y1, y2;
+	u32 y1;
 	u32 x1, x2;
 	u32 mean;
 	u32 sof;
-	u64 y;
+	u64 y, y2;
 
 	if (!uvc_hw_timestamps_param)
 		return;
@@ -767,7 +767,7 @@ void uvc_video_clock_update(struct uvc_s
 	sof = y;
 
 	uvc_trace(UVC_TRACE_CLOCK, "%s: PTS %u y %llu.%06llu SOF %u.%06llu "
-		  "(x1 %u x2 %u y1 %u y2 %u SOF offset %u)\n",
+		  "(x1 %u x2 %u y1 %u y2 %llu SOF offset %u)\n",
 		  stream->dev->name, buf->pts,
 		  y >> 16, div_u64((y & 0xffff) * 1000000, 65536),
 		  sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536),
@@ -782,7 +782,7 @@ void uvc_video_clock_update(struct uvc_s
 		goto done;
 
 	y1 = NSEC_PER_SEC;
-	y2 = (u32)ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1;
+	y2 = ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1;
 
 	/* Interpolated and host SOF timestamps can wrap around at slightly
 	 * different times. Handle this by adding or removing 2048 to or from
@@ -802,7 +802,7 @@ void uvc_video_clock_update(struct uvc_s
 	timestamp = ktime_to_ns(first->host_time) + y - y1;
 
 	uvc_trace(UVC_TRACE_CLOCK, "%s: SOF %u.%06llu y %llu ts %llu "
-		  "buf ts %llu (x1 %u/%u/%u x2 %u/%u/%u y1 %u y2 %u)\n",
+		  "buf ts %llu (x1 %u/%u/%u x2 %u/%u/%u y1 %u y2 %llu)\n",
 		  stream->dev->name,
 		  sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536),
 		  y, timestamp, vbuf->vb2_buf.timestamp,

[PATCH 5.10 130/151] Revert "Input: ioc3kbd - convert to platform remove callback returning void"

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 0096d223f78cb48db1ae8ae9fd56d702896ba8ae which is
commit 150e792dee9ca8416f3d375e48f2f4d7f701fc6b upstream.

It breaks the build and shouldn't be here, it was applied to make a
follow-up one apply easier.

Reported-by: Dominique Martinet <asmadeus@codewreck.org>
Link: https://lore.kernel.org/r/Zs6hwNxk7QkCe7AW@codewreck.org
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230920125829.1478827-37-u.kleine-koenig@pengutronix.de
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/serio/ioc3kbd.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/input/serio/ioc3kbd.c
+++ b/drivers/input/serio/ioc3kbd.c
@@ -190,7 +190,7 @@ static int ioc3kbd_probe(struct platform
 	return 0;
 }
 
-static void ioc3kbd_remove(struct platform_device *pdev)
+static int ioc3kbd_remove(struct platform_device *pdev)
 {
 	struct ioc3kbd_data *d = platform_get_drvdata(pdev);
 
@@ -198,6 +198,8 @@ static void ioc3kbd_remove(struct platfo
 
 	serio_unregister_port(d->kbd);
 	serio_unregister_port(d->aux);
+
+	return 0;
 }
 
 static const struct platform_device_id ioc3kbd_id_table[] = {
@@ -208,7 +210,7 @@ MODULE_DEVICE_TABLE(platform, ioc3kbd_id
 
 static struct platform_driver ioc3kbd_driver = {
 	.probe          = ioc3kbd_probe,
-	.remove_new     = ioc3kbd_remove,
+	.remove         = ioc3kbd_remove,
 	.id_table	= ioc3kbd_id_table,
 	.driver = {
 		.name = "ioc3-kbd",

[PATCH 5.10 131/151] ata: libata-core: Fix null pointer dereference on error

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Niklas Cassel <cassel@kernel.org>

commit 5d92c7c566dc76d96e0e19e481d926bbe6631c1e upstream.

If the ata_port_alloc() call in ata_host_alloc() fails,
ata_host_release() will get called.

However, the code in ata_host_release() tries to free ata_port struct
members unconditionally, which can lead to the following:

BUG: unable to handle page fault for address: 0000000000003990
PGD 0 P4D 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 PID: 594 Comm: (udev-worker) Not tainted 6.10.0-rc5 #44
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
RIP: 0010:ata_host_release.cold+0x2f/0x6e [libata]
Code: e4 4d 63 f4 44 89 e2 48 c7 c6 90 ad 32 c0 48 c7 c7 d0 70 33 c0 49 83 c6 0e 41
RSP: 0018:ffffc90000ebb968 EFLAGS: 00010246
RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0
RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68
R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004
R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006
FS:  00007f6cc55b9980(0000) GS:ffff88813b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000003990 CR3: 00000001122a2000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
 <TASK>
 ? __die_body.cold+0x19/0x27
 ? page_fault_oops+0x15a/0x2f0
 ? exc_page_fault+0x7e/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? ata_host_release.cold+0x2f/0x6e [libata]
 ? ata_host_release.cold+0x2f/0x6e [libata]
 release_nodes+0x35/0xb0
 devres_release_group+0x113/0x140
 ata_host_alloc+0xed/0x120 [libata]
 ata_host_alloc_pinfo+0x14/0xa0 [libata]
 ahci_init_one+0x6c9/0xd20 [ahci]

Do not access ata_port struct members unconditionally.

Fixes: 633273a3ed1c ("libata-pmp: hook PMP support and enable it")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240629124210.181537-7-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Oleksandr Tymoshenko <ovt@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/libata-core.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5366,6 +5366,9 @@ static void ata_host_release(struct kref
 	for (i = 0; i < host->n_ports; i++) {
 		struct ata_port *ap = host->ports[i];
 
+		if (!ap)
+			continue;
+
 		kfree(ap->pmp_link);
 		kfree(ap->slave_link);
 		kfree(ap);

[PATCH 5.10 132/151] cgroup/cpuset: Prevent UAF in proc_cpuset_show()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chen Ridong <chenridong@huawei.com>

commit 1be59c97c83ccd67a519d8a49486b3a8a73ca28a upstream.

An UAF can happen when /proc/cpuset is read as reported in [1].

This can be reproduced by the following methods:
1.add an mdelay(1000) before acquiring the cgroup_lock In the
 cgroup_path_ns function.
2.$cat /proc/<pid>/cpuset   repeatly.
3.$mount -t cgroup -o cpuset cpuset /sys/fs/cgroup/cpuset/
$umount /sys/fs/cgroup/cpuset/   repeatly.

The race that cause this bug can be shown as below:

(umount)		|	(cat /proc/<pid>/cpuset)
css_release		|	proc_cpuset_show
css_release_work_fn	|	css = task_get_css(tsk, cpuset_cgrp_id);
css_free_rwork_fn	|	cgroup_path_ns(css->cgroup, ...);
cgroup_destroy_root	|	mutex_lock(&cgroup_mutex);
rebind_subsystems	|
cgroup_free_root 	|
			|	// cgrp was freed, UAF
			|	cgroup_path_ns_locked(cgrp,..);

When the cpuset is initialized, the root node top_cpuset.css.cgrp
will point to &cgrp_dfl_root.cgrp. In cgroup v1, the mount operation will
allocate cgroup_root, and top_cpuset.css.cgrp will point to the allocated
&cgroup_root.cgrp. When the umount operation is executed,
top_cpuset.css.cgrp will be rebound to &cgrp_dfl_root.cgrp.

The problem is that when rebinding to cgrp_dfl_root, there are cases
where the cgroup_root allocated by setting up the root for cgroup v1
is cached. This could lead to a Use-After-Free (UAF) if it is
subsequently freed. The descendant cgroups of cgroup v1 can only be
freed after the css is released. However, the css of the root will never
be released, yet the cgroup_root should be freed when it is unmounted.
This means that obtaining a reference to the css of the root does
not guarantee that css.cgrp->root will not be freed.

Fix this problem by using rcu_read_lock in proc_cpuset_show().
As cgroup_root is kfree_rcu after commit d23b5c577715
("cgroup: Make operations on the cgroup root_list RCU safe"),
css->cgroup won't be freed during the critical section.
To call cgroup_path_ns_locked, css_set_lock is needed, so it is safe to
replace task_get_css with task_css.

[1] https://syzkaller.appspot.com/bug?extid=9b1ff7be974a403aa4cd

Fixes: a79a908fd2b0 ("cgroup: introduce cgroup namespaces")
Signed-off-by: Chen Ridong <chenridong@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Shivani Agarwal <shivani.agarwal@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/cgroup/cpuset.c |   13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -22,6 +22,7 @@
  *  distribution for more details.
  */
 
+#include "cgroup-internal.h"
 #include <linux/cpu.h>
 #include <linux/cpumask.h>
 #include <linux/cpuset.h>
@@ -3725,10 +3726,14 @@ int proc_cpuset_show(struct seq_file *m,
 	if (!buf)
 		goto out;
 
-	css = task_get_css(tsk, cpuset_cgrp_id);
-	retval = cgroup_path_ns(css->cgroup, buf, PATH_MAX,
-				current->nsproxy->cgroup_ns);
-	css_put(css);
+	rcu_read_lock();
+	spin_lock_irq(&css_set_lock);
+	css = task_css(tsk, cpuset_cgrp_id);
+	retval = cgroup_path_ns_locked(css->cgroup, buf, PATH_MAX,
+				       current->nsproxy->cgroup_ns);
+	spin_unlock_irq(&css_set_lock);
+	rcu_read_unlock();
+
 	if (retval >= PATH_MAX)
 		retval = -ENAMETOOLONG;
 	if (retval < 0)

[PATCH 5.10 133/151] net:rds: Fix possible deadlock in rds_message_put

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Allison Henderson <allison.henderson@oracle.com>

commit f1acf1ac84d2ae97b7889b87223c1064df850069 upstream.

Functions rds_still_queued and rds_clear_recv_queue lock a given socket
in order to safely iterate over the incoming rds messages. However
calling rds_inc_put while under this lock creates a potential deadlock.
rds_inc_put may eventually call rds_message_purge, which will lock
m_rs_lock. This is the incorrect locking order since m_rs_lock is
meant to be locked before the socket. To fix this, we move the message
item to a local list or variable that wont need rs_recv_lock protection.
Then we can safely call rds_inc_put on any item stored locally after
rs_recv_lock is released.

Fixes: bdbe6fbc6a2f ("RDS: recv.c")
Reported-by: syzbot+f9db6ff27b9bfdcfeca0@syzkaller.appspotmail.com
Reported-by: syzbot+dcd73ff9291e6d34b3ab@syzkaller.appspotmail.com
Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Link: https://lore.kernel.org/r/20240209022854.200292-1-allison.henderson@oracle.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/rds/recv.c |   13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -424,6 +424,7 @@ static int rds_still_queued(struct rds_s
 	struct sock *sk = rds_rs_to_sk(rs);
 	int ret = 0;
 	unsigned long flags;
+	struct rds_incoming *to_drop = NULL;
 
 	write_lock_irqsave(&rs->rs_recv_lock, flags);
 	if (!list_empty(&inc->i_item)) {
@@ -434,11 +435,14 @@ static int rds_still_queued(struct rds_s
 					      -be32_to_cpu(inc->i_hdr.h_len),
 					      inc->i_hdr.h_dport);
 			list_del_init(&inc->i_item);
-			rds_inc_put(inc);
+			to_drop = inc;
 		}
 	}
 	write_unlock_irqrestore(&rs->rs_recv_lock, flags);
 
+	if (to_drop)
+		rds_inc_put(to_drop);
+
 	rdsdebug("inc %p rs %p still %d dropped %d\n", inc, rs, ret, drop);
 	return ret;
 }
@@ -761,16 +765,21 @@ void rds_clear_recv_queue(struct rds_soc
 	struct sock *sk = rds_rs_to_sk(rs);
 	struct rds_incoming *inc, *tmp;
 	unsigned long flags;
+	LIST_HEAD(to_drop);
 
 	write_lock_irqsave(&rs->rs_recv_lock, flags);
 	list_for_each_entry_safe(inc, tmp, &rs->rs_recv_queue, i_item) {
 		rds_recv_rcvbuf_delta(rs, sk, inc->i_conn->c_lcong,
 				      -be32_to_cpu(inc->i_hdr.h_len),
 				      inc->i_hdr.h_dport);
+		list_move(&inc->i_item, &to_drop);
+	}
+	write_unlock_irqrestore(&rs->rs_recv_lock, flags);
+
+	list_for_each_entry_safe(inc, tmp, &to_drop, i_item) {
 		list_del_init(&inc->i_item);
 		rds_inc_put(inc);
 	}
-	write_unlock_irqrestore(&rs->rs_recv_lock, flags);
 }
 
 /*

[PATCH 5.10 134/151] ovl: do not fail because of O_NOATIME

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Miklos Szeredi <mszeredi@redhat.com>

commit b6650dab404c701d7fe08a108b746542a934da84 upstream.

In case the file cannot be opened with O_NOATIME because of lack of
capabilities, then clear O_NOATIME instead of failing.

Remove WARN_ON(), since it would now trigger if O_NOATIME was cleared.
Noticed by Amir Goldstein.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Hugo SIMELIERE <hsimeliere.opensource@witekio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/overlayfs/file.c |   11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -53,9 +53,10 @@ static struct file *ovl_open_realfile(co
 	err = inode_permission(realinode, MAY_OPEN | acc_mode);
 	if (err) {
 		realfile = ERR_PTR(err);
-	} else if (!inode_owner_or_capable(realinode)) {
-		realfile = ERR_PTR(-EPERM);
 	} else {
+		if (!inode_owner_or_capable(realinode))
+			flags &= ~O_NOATIME;
+
 		realfile = open_with_fake_path(&file->f_path, flags, realinode,
 					       current_cred());
 	}
@@ -75,12 +76,6 @@ static int ovl_change_flags(struct file
 	struct inode *inode = file_inode(file);
 	int err;
 
-	flags |= OVL_OPEN_FLAGS;
-
-	/* If some flag changed that cannot be changed then something's amiss */
-	if (WARN_ON((file->f_flags ^ flags) & ~OVL_SETFL_MASK))
-		return -EIO;
-
 	flags &= OVL_SETFL_MASK;
 
 	if (((flags ^ file->f_flags) & O_APPEND) && IS_APPEND(inode))

[PATCH 5.10 135/151] soundwire: stream: fix programming slave ports for non-continous port maps

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

commit ab8d66d132bc8f1992d3eb6cab8d32dda6733c84 upstream.

Two bitmasks in 'struct sdw_slave_prop' - 'source_ports' and
'sink_ports' - define which ports to program in
sdw_program_slave_port_params().  The masks are used to get the
appropriate data port properties ('struct sdw_get_slave_dpn_prop') from
an array.

Bitmasks can be non-continuous or can start from index different than 0,
thus when looking for matching port property for given port, we must
iterate over mask bits, not from 0 up to number of ports.

This fixes allocation and programming slave ports, when a source or sink
masks start from further index.

Fixes: f8101c74aa54 ("soundwire: Add Master and Slave port programming")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20240729140157.326450-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soundwire/stream.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -1425,18 +1425,18 @@ struct sdw_dpn_prop *sdw_get_slave_dpn_p
 					    unsigned int port_num)
 {
 	struct sdw_dpn_prop *dpn_prop;
-	u8 num_ports;
+	unsigned long mask;
 	int i;
 
 	if (direction == SDW_DATA_DIR_TX) {
-		num_ports = hweight32(slave->prop.source_ports);
+		mask = slave->prop.source_ports;
 		dpn_prop = slave->prop.src_dpn_prop;
 	} else {
-		num_ports = hweight32(slave->prop.sink_ports);
+		mask = slave->prop.sink_ports;
 		dpn_prop = slave->prop.sink_dpn_prop;
 	}
 
-	for (i = 0; i < num_ports; i++) {
+	for_each_set_bit(i, &mask, 32) {
 		if (dpn_prop[i].num == port_num)
 			return &dpn_prop[i];
 	}

[PATCH 5.10 136/151] dmaengine: dw: Add peripheral bus width verification

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Serge Semin <fancer.lancer@gmail.com>

[ Upstream commit b336268dde75cb09bd795cb24893d52152a9191f ]

Currently the src_addr_width and dst_addr_width fields of the
dma_slave_config structure are mapped to the CTLx.SRC_TR_WIDTH and
CTLx.DST_TR_WIDTH fields of the peripheral bus side in order to have the
properly aligned data passed to the target device. It's done just by
converting the passed peripheral bus width to the encoded value using the
__ffs() function. This implementation has several problematic sides:

1. __ffs() is undefined if no bit exist in the passed value. Thus if the
specified addr-width is DMA_SLAVE_BUSWIDTH_UNDEFINED, __ffs() may return
unexpected value depending on the platform-specific implementation.

2. DW AHB DMA-engine permits having the power-of-2 transfer width limited
by the DMAH_Mk_HDATA_WIDTH IP-core synthesize parameter. Specifying
bus-width out of that constraints scope will definitely cause unexpected
result since the destination reg will be only partly touched than the
client driver implied.

Let's fix all of that by adding the peripheral bus width verification
method and calling it in dwc_config() which is supposed to be executed
before preparing any transfer. The new method will make sure that the
passed source or destination address width is valid and if undefined then
the driver will just fallback to the 1-byte width transfer.

Fixes: 029a40e97d0d ("dmaengine: dw: provide DMA capabilities")
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240802075100.6475-2-fancer.lancer@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/dw/core.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 7ab83fe601ede..128c194d65b6d 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/log2.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -783,10 +784,43 @@ bool dw_dma_filter(struct dma_chan *chan, void *param)
 }
 EXPORT_SYMBOL_GPL(dw_dma_filter);
 
+static int dwc_verify_p_buswidth(struct dma_chan *chan)
+{
+	struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
+	struct dw_dma *dw = to_dw_dma(chan->device);
+	u32 reg_width, max_width;
+
+	if (dwc->dma_sconfig.direction == DMA_MEM_TO_DEV)
+		reg_width = dwc->dma_sconfig.dst_addr_width;
+	else if (dwc->dma_sconfig.direction == DMA_DEV_TO_MEM)
+		reg_width = dwc->dma_sconfig.src_addr_width;
+	else /* DMA_MEM_TO_MEM */
+		return 0;
+
+	max_width = dw->pdata->data_width[dwc->dws.p_master];
+
+	/* Fall-back to 1-byte transfer width if undefined */
+	if (reg_width == DMA_SLAVE_BUSWIDTH_UNDEFINED)
+		reg_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
+	else if (!is_power_of_2(reg_width) || reg_width > max_width)
+		return -EINVAL;
+	else /* bus width is valid */
+		return 0;
+
+	/* Update undefined addr width value */
+	if (dwc->dma_sconfig.direction == DMA_MEM_TO_DEV)
+		dwc->dma_sconfig.dst_addr_width = reg_width;
+	else /* DMA_DEV_TO_MEM */
+		dwc->dma_sconfig.src_addr_width = reg_width;
+
+	return 0;
+}
+
 static int dwc_config(struct dma_chan *chan, struct dma_slave_config *sconfig)
 {
 	struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
 	struct dw_dma *dw = to_dw_dma(chan->device);
+	int ret;
 
 	memcpy(&dwc->dma_sconfig, sconfig, sizeof(*sconfig));
 
@@ -795,6 +829,10 @@ static int dwc_config(struct dma_chan *chan, struct dma_slave_config *sconfig)
 	dwc->dma_sconfig.dst_maxburst =
 		clamp(dwc->dma_sconfig.dst_maxburst, 0U, dwc->max_burst);
 
+	ret = dwc_verify_p_buswidth(chan);
+	if (ret)
+		return ret;
+
 	dw->encode_maxburst(dwc, &dwc->dma_sconfig.src_maxburst);
 	dw->encode_maxburst(dwc, &dwc->dma_sconfig.dst_maxburst);
 
-- 
2.43.0

[PATCH 5.10 137/151] dmaengine: dw: Add memory bus width verification

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Serge Semin <fancer.lancer@gmail.com>

[ Upstream commit d04b21bfa1c50a2ade4816cab6fdc91827b346b1 ]

Currently in case of the DEV_TO_MEM or MEM_TO_DEV DMA transfers the memory
data width (single transfer width) is determined based on the buffer
length, buffer base address or DMA master-channel max address width
capability. It isn't enough in case of the channel disabling prior the
block transfer is finished. Here is what DW AHB DMA IP-core databook says
regarding the port suspension (DMA-transfer pause) implementation in the
controller:

"When CTLx.SRC_TR_WIDTH < CTLx.DST_TR_WIDTH and the CFGx.CH_SUSP bit is
high, the CFGx.FIFO_EMPTY is asserted once the contents of the FIFO do not
permit a single word of CTLx.DST_TR_WIDTH to be formed. However, there may
still be data in the channel FIFO, but not enough to form a single
transfer of CTLx.DST_TR_WIDTH. In this scenario, once the channel is
disabled, the remaining data in the channel FIFO is not transferred to the
destination peripheral."

So in case if the port gets to be suspended and then disabled it's
possible to have the data silently discarded even though the controller
reported that FIFO is empty and the CTLx.BLOCK_TS indicated the dropped
data already received from the source device. This looks as if the data
somehow got lost on a way from the peripheral device to memory and causes
problems for instance in the DW APB UART driver, which pauses and disables
the DMA-transfer as soon as the recv data timeout happens. Here is the way
it looks:

 Memory <------- DMA FIFO <------ UART FIFO <---------------- UART
  DST_TR_WIDTH -+--------|       |         |
                |        |       |         |                No more data
   Current lvl -+--------|       |---------+- DMA-burst lvl
                |        |       |---------+- Leftover data
                |        |       |---------+- SRC_TR_WIDTH
               -+--------+-------+---------+

In the example above: no more data is getting received over the UART port
and BLOCK_TS is not even close to be fully received; some data is left in
the UART FIFO, but not enough to perform a bursted DMA-xfer to the DMA
FIFO; some data is left in the DMA FIFO, but not enough to be passed
further to the system memory in a single transfer. In this situation the
8250 UART driver catches the recv timeout interrupt, pauses the
DMA-transfer and terminates it completely, after which the IRQ handler
manually fetches the leftover data from the UART FIFO into the
recv-buffer. But since the DMA-channel has been disabled with the data
left in the DMA FIFO, that data will be just discarded and the recv-buffer
will have a gap of the "current lvl" size in the recv-buffer at the tail
of the lately received data portion. So the data will be lost just due to
the misconfigured DMA transfer.

Note this is only relevant for the case of the transfer suspension and
_disabling_. No problem will happen if the transfer will be re-enabled
afterwards or the block transfer is fully completed. In the later case the
"FIFO flush mode" will be executed at the transfer final stage in order to
push out the data left in the DMA FIFO.

In order to fix the denoted problem the DW AHB DMA-engine driver needs to
make sure that the _bursted_ source transfer width is greater or equal to
the single destination transfer (note the HW databook describes more
strict constraint than actually required). Since the peripheral-device
side is prescribed by the client driver logic, the memory-side can be only
used for that. The solution can be easily implemented for the DEV_TO_MEM
transfers just by adjusting the memory-channel address width. Sadly it's
not that easy for the MEM_TO_DEV transfers since the mem-to-dma burst size
is normally dynamically determined by the controller. So the only thing
that can be done is to make sure that memory-side address width is greater
than the peripheral device address width.

Fixes: a09820043c9e ("dw_dmac: autoconfigure data_width or get it via platform data")
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240802075100.6475-3-fancer.lancer@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/dw/core.c | 51 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 44 insertions(+), 7 deletions(-)

diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 128c194d65b6d..0beafcee72673 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -625,12 +625,10 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 	struct dw_desc		*prev;
 	struct dw_desc		*first;
 	u32			ctllo, ctlhi;
-	u8			m_master = dwc->dws.m_master;
-	u8			lms = DWC_LLP_LMS(m_master);
+	u8			lms = DWC_LLP_LMS(dwc->dws.m_master);
 	dma_addr_t		reg;
 	unsigned int		reg_width;
 	unsigned int		mem_width;
-	unsigned int		data_width = dw->pdata->data_width[m_master];
 	unsigned int		i;
 	struct scatterlist	*sg;
 	size_t			total_len = 0;
@@ -664,7 +662,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 			mem = sg_dma_address(sg);
 			len = sg_dma_len(sg);
 
-			mem_width = __ffs(data_width | mem | len);
+			mem_width = __ffs(sconfig->src_addr_width | mem | len);
 
 slave_sg_todev_fill_desc:
 			desc = dwc_desc_get(dwc);
@@ -724,7 +722,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 			lli_write(desc, sar, reg);
 			lli_write(desc, dar, mem);
 			lli_write(desc, ctlhi, ctlhi);
-			mem_width = __ffs(data_width | mem);
+			mem_width = __ffs(sconfig->dst_addr_width | mem);
 			lli_write(desc, ctllo, ctllo | DWC_CTLL_DST_WIDTH(mem_width));
 			desc->len = dlen;
 
@@ -816,6 +814,41 @@ static int dwc_verify_p_buswidth(struct dma_chan *chan)
 	return 0;
 }
 
+static int dwc_verify_m_buswidth(struct dma_chan *chan)
+{
+	struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
+	struct dw_dma *dw = to_dw_dma(chan->device);
+	u32 reg_width, reg_burst, mem_width;
+
+	mem_width = dw->pdata->data_width[dwc->dws.m_master];
+
+	/*
+	 * It's possible to have a data portion locked in the DMA FIFO in case
+	 * of the channel suspension. Subsequent channel disabling will cause
+	 * that data silent loss. In order to prevent that maintain the src and
+	 * dst transfer widths coherency by means of the relation:
+	 * (CTLx.SRC_TR_WIDTH * CTLx.SRC_MSIZE >= CTLx.DST_TR_WIDTH)
+	 * Look for the details in the commit message that brings this change.
+	 *
+	 * Note the DMA configs utilized in the calculations below must have
+	 * been verified to have correct values by this method call.
+	 */
+	if (dwc->dma_sconfig.direction == DMA_MEM_TO_DEV) {
+		reg_width = dwc->dma_sconfig.dst_addr_width;
+		if (mem_width < reg_width)
+			return -EINVAL;
+
+		dwc->dma_sconfig.src_addr_width = mem_width;
+	} else if (dwc->dma_sconfig.direction == DMA_DEV_TO_MEM) {
+		reg_width = dwc->dma_sconfig.src_addr_width;
+		reg_burst = rounddown_pow_of_two(dwc->dma_sconfig.src_maxburst);
+
+		dwc->dma_sconfig.dst_addr_width = min(mem_width, reg_width * reg_burst);
+	}
+
+	return 0;
+}
+
 static int dwc_config(struct dma_chan *chan, struct dma_slave_config *sconfig)
 {
 	struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
@@ -825,14 +858,18 @@ static int dwc_config(struct dma_chan *chan, struct dma_slave_config *sconfig)
 	memcpy(&dwc->dma_sconfig, sconfig, sizeof(*sconfig));
 
 	dwc->dma_sconfig.src_maxburst =
-		clamp(dwc->dma_sconfig.src_maxburst, 0U, dwc->max_burst);
+		clamp(dwc->dma_sconfig.src_maxburst, 1U, dwc->max_burst);
 	dwc->dma_sconfig.dst_maxburst =
-		clamp(dwc->dma_sconfig.dst_maxburst, 0U, dwc->max_burst);
+		clamp(dwc->dma_sconfig.dst_maxburst, 1U, dwc->max_burst);
 
 	ret = dwc_verify_p_buswidth(chan);
 	if (ret)
 		return ret;
 
+	ret = dwc_verify_m_buswidth(chan);
+	if (ret)
+		return ret;
+
 	dw->encode_maxburst(dwc, &dwc->dma_sconfig.src_maxburst);
 	dw->encode_maxburst(dwc, &dwc->dma_sconfig.dst_maxburst);
 
-- 
2.43.0

[PATCH 5.10 138/151] ethtool: check device is present when getting link settings

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jamie Bainbridge <jamie.bainbridge@gmail.com>

[ Upstream commit a699781c79ecf6cfe67fb00a0331b4088c7c8466 ]

A sysfs reader can race with a device reset or removal, attempting to
read device state when the device is not actually present. eg:

     [exception RIP: qed_get_current_link+17]
  #8 [ffffb9e4f2907c48] qede_get_link_ksettings at ffffffffc07a994a [qede]
  #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings at ffffffff992b01a3
 #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings at ffffffff992b04e4
 #11 [ffffb9e4f2907d90] duplex_show at ffffffff99260300
 #12 [ffffb9e4f2907e38] dev_attr_show at ffffffff9905a01c
 #13 [ffffb9e4f2907e50] sysfs_kf_seq_show at ffffffff98e0145b
 #14 [ffffb9e4f2907e68] seq_read at ffffffff98d902e3
 #15 [ffffb9e4f2907ec8] vfs_read at ffffffff98d657d1
 #16 [ffffb9e4f2907f00] ksys_read at ffffffff98d65c3f
 #17 [ffffb9e4f2907f38] do_syscall_64 at ffffffff98a052fb

 crash> struct net_device.state ffff9a9d21336000
    state = 5,

state 5 is __LINK_STATE_START (0b1) and __LINK_STATE_NOCARRIER (0b100).
The device is not present, note lack of __LINK_STATE_PRESENT (0b10).

This is the same sort of panic as observed in commit 4224cfd7fb65
("net-sysfs: add check for netdevice being present to speed_show").

There are many other callers of __ethtool_get_link_ksettings() which
don't have a device presence check.

Move this check into ethtool to protect all callers.

Fixes: d519e17e2d01 ("net: export device speed and duplex via sysfs")
Fixes: 4224cfd7fb65 ("net-sysfs: add check for netdevice being present to speed_show")
Signed-off-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Link: https://patch.msgid.link/8bae218864beaa44ed01628140475b9bf641c5b0.1724393671.git.jamie.bainbridge@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/net-sysfs.c | 2 +-
 net/ethtool/ioctl.c  | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 989b3f7ee85f4..99303897b7bb7 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -213,7 +213,7 @@ static ssize_t speed_show(struct device *dev,
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	if (netif_running(netdev) && netif_device_present(netdev)) {
+	if (netif_running(netdev)) {
 		struct ethtool_link_ksettings cmd;
 
 		if (!__ethtool_get_link_ksettings(netdev, &cmd))
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 12bf740e2fb31..0a588545d3526 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -432,6 +432,9 @@ int __ethtool_get_link_ksettings(struct net_device *dev,
 	if (!dev->ethtool_ops->get_link_ksettings)
 		return -EOPNOTSUPP;
 
+	if (!netif_device_present(dev))
+		return -ENODEV;
+
 	memset(link_ksettings, 0, sizeof(*link_ksettings));
 	return dev->ethtool_ops->get_link_ksettings(dev, link_ksettings);
 }
-- 
2.43.0

[PATCH 5.10 139/151] gtp: fix a potential NULL pointer dereference

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Cong Wang <cong.wang@bytedance.com>

[ Upstream commit defd8b3c37b0f9cb3e0f60f47d3d78d459d57fda ]

When sockfd_lookup() fails, gtp_encap_enable_socket() returns a
NULL pointer, but its callers only check for error pointers thus miss
the NULL pointer case.

Fix it by returning an error pointer with the error code carried from
sockfd_lookup().

(I found this bug during code inspection.)

Fixes: 1e3a3abd8b28 ("gtp: make GTP sockets in gtp_newlink optional")
Cc: Andreas Schultz <aschultz@tpip.net>
Cc: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20240825191638.146748-1-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 993960f0fa3cb..24cb7b97e4fcc 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -801,7 +801,7 @@ static struct sock *gtp_encap_enable_socket(int fd, int type,
 	sock = sockfd_lookup(fd, &err);
 	if (!sock) {
 		pr_debug("gtp socket fd=%d not found\n", fd);
-		return NULL;
+		return ERR_PTR(err);
 	}
 
 	sk = sock->sk;
-- 
2.43.0

[PATCH 5.10 140/151] net: busy-poll: use ktime_get_ns() instead of local_clock()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 0870b0d8b393dde53106678a1e2cec9dfa52f9b7 ]

Typically, busy-polling durations are below 100 usec.

When/if the busy-poller thread migrates to another cpu,
local_clock() can be off by +/-2msec or more for small
values of HZ, depending on the platform.

Use ktimer_get_ns() to ensure deterministic behavior,
which is the whole point of busy-polling.

Fixes: 060212928670 ("net: add low latency socket poll")
Fixes: 9a3c71aa8024 ("net: convert low latency sockets to sched_clock()")
Fixes: 37089834528b ("sched, net: Fixup busy_loop_us_clock()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20240827114916.223377-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/busy_poll.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index 36e5e75e71720..be01eda3b6ff7 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -61,7 +61,7 @@ static inline bool sk_can_busy_loop(struct sock *sk)
 static inline unsigned long busy_loop_current_time(void)
 {
 #ifdef CONFIG_NET_RX_BUSY_POLL
-	return (unsigned long)(local_clock() >> 10);
+	return (unsigned long)(ktime_get_ns() >> 10);
 #else
 	return 0;
 #endif
-- 
2.43.0

[PATCH 5.10 141/151] nfc: pn533: Add poll mod list filling check

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aleksandr Mishin <amishin@t-argos.ru>

[ Upstream commit febccb39255f9df35527b88c953b2e0deae50e53 ]

In case of im_protocols value is 1 and tm_protocols value is 0 this
combination successfully passes the check
'if (!im_protocols && !tm_protocols)' in the nfc_start_poll().
But then after pn533_poll_create_mod_list() call in pn533_start_poll()
poll mod list will remain empty and dev->poll_mod_count will remain 0
which lead to division by zero.

Normally no im protocol has value 1 in the mask, so this combination is
not expected by driver. But these protocol values actually come from
userspace via Netlink interface (NFC_CMD_START_POLL operation). So a
broken or malicious program may pass a message containing a "bad"
combination of protocol parameter values so that dev->poll_mod_count
is not incremented inside pn533_poll_create_mod_list(), thus leading
to division by zero.
Call trace looks like:
nfc_genl_start_poll()
  nfc_start_poll()
    ->start_poll()
    pn533_start_poll()

Add poll mod list filling check.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: dfccd0f58044 ("NFC: pn533: Add some polling entropy")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240827084822.18785-1-amishin@t-argos.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nfc/pn533/pn533.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index 87e1296c68381..4de5205d9d61b 100644
--- a/drivers/nfc/pn533/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -1751,6 +1751,11 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev,
 	}
 
 	pn533_poll_create_mod_list(dev, im_protocols, tm_protocols);
+	if (!dev->poll_mod_count) {
+		nfc_err(dev->dev,
+			"Poll mod list is empty\n");
+		return -EINVAL;
+	}
 
 	/* Do not always start polling from the same modulation */
 	get_random_bytes(&rand_mod, sizeof(rand_mod));
-- 
2.43.0

[PATCH 5.10 142/151] soc: qcom: cmd-db: Map shared memory as WC, not WB

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>

commit f9bb896eab221618927ae6a2f1d566567999839d upstream.

Linux does not write into cmd-db region. This region of memory is write
protected by XPU. XPU may sometime falsely detect clean cache eviction
as "write" into the write protected region leading to secure interrupt
which causes an endless loop somewhere in Trust Zone.

The only reason it is working right now is because Qualcomm Hypervisor
maps the same region as Non-Cacheable memory in Stage 2 translation
tables. The issue manifests if we want to use another hypervisor (like
Xen or KVM), which does not know anything about those specific mappings.

Changing the mapping of cmd-db memory from MEMREMAP_WB to MEMREMAP_WT/WC
removes dependency on correct mappings in Stage 2 tables. This patch
fixes the issue by updating the mapping to MEMREMAP_WC.

I tested this on SA8155P with Xen.

Fixes: 312416d9171a ("drivers: qcom: add command DB driver")
Cc: stable@vger.kernel.org # 5.4+
Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Tested-by: Nikita Travkin <nikita@trvn.ru> # sc7180 WoA in EL2
Signed-off-by: Maulik Shah <quic_mkshah@quicinc.com>
Tested-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20240718-cmd_db_uncached-v2-1-f6cf53164c90@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soc/qcom/cmd-db.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/soc/qcom/cmd-db.c
+++ b/drivers/soc/qcom/cmd-db.c
@@ -319,7 +319,7 @@ static int cmd_db_dev_probe(struct platf
 		return -EINVAL;
 	}
 
-	cmd_db_header = memremap(rmem->base, rmem->size, MEMREMAP_WB);
+	cmd_db_header = memremap(rmem->base, rmem->size, MEMREMAP_WC);
 	if (!cmd_db_header) {
 		ret = -ENOMEM;
 		cmd_db_header = NULL;

[PATCH 5.10 143/151] cdc-acm: Add DISABLE_ECHO quirk for GE HealthCare UI Controller

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ian Ray <ian.ray@gehealthcare.com>

commit 0b00583ecacb0b51712a5ecd34cf7e6684307c67 upstream.

USB_DEVICE(0x1901, 0x0006) may send data before cdc_acm is ready, which
may be misinterpreted in the default N_TTY line discipline.

Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
Acked-by: Oliver Neuku <oneukum@suse.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20240814072905.2501-1-ian.ray@gehealthcare.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/class/cdc-acm.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1757,6 +1757,9 @@ static const struct usb_device_id acm_id
 	{ USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */
 	.driver_info = SINGLE_RX_URB,
 	},
+	{ USB_DEVICE(0x1901, 0x0006), /* GE Healthcare Patient Monitor UI Controller */
+	.driver_info = DISABLE_ECHO, /* DISABLE ECHO in termios flag */
+	},
 	{ USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */
 	.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
 	},

[PATCH 5.10 144/151] USB: serial: option: add MeiG Smart SRM825L

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: ZHANG Yuntian <yt@radxa.com>

commit 9a471de516c35219d1722c13367191ce1f120fe9 upstream.

Add support for MeiG Smart SRM825L which is based on Qualcomm 315 chip.

T:  Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=5000 MxCh= 0
D:  Ver= 3.20 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=2dee ProdID=4d22 Rev= 4.14
S:  Manufacturer=MEIG
S:  Product=LTE-A Module
S:  SerialNumber=6f345e48
C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=896mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E:  Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=84(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=86(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E:  Ad=05(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=88(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan
E:  Ad=89(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
E:  Ad=8e(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=0f(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms

Signed-off-by: ZHANG Yuntian <yt@radxa.com>
Link: https://lore.kernel.org/0041DFA5200EFB1B+20240803074619.563116-1-yt@radxa.com/
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -619,6 +619,8 @@ static void option_instat_callback(struc
 
 /* MeiG Smart Technology products */
 #define MEIGSMART_VENDOR_ID			0x2dee
+/* MeiG Smart SRM825L based on Qualcomm 315 */
+#define MEIGSMART_PRODUCT_SRM825L		0x4d22
 /* MeiG Smart SLM320 based on UNISOC UIS8910 */
 #define MEIGSMART_PRODUCT_SLM320		0x4d41
 
@@ -2366,6 +2368,9 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, TOZED_PRODUCT_LT70C, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, LUAT_PRODUCT_AIR720U, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SLM320, 0xff, 0, 0) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SRM825L, 0xff, 0xff, 0x30) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SRM825L, 0xff, 0xff, 0x40) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SRM825L, 0xff, 0xff, 0x60) },
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);

[PATCH 5.10 145/151] usb: dwc3: omap: add missing depopulate in probe error path

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

commit 2aa765a43817ec8add990f83c8e54a9a5d87aa9c upstream.

Depopulate device in probe error paths to fix leak of children
resources.

Fixes: ee249b455494 ("usb: dwc3: omap: remove IRQ_NOAUTOEN used with shared irq")
Cc: stable@vger.kernel.org
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://lore.kernel.org/r/20240816075409.23080-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/dwc3-omap.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -522,11 +522,13 @@ static int dwc3_omap_probe(struct platfo
 	if (ret) {
 		dev_err(dev, "failed to request IRQ #%d --> %d\n",
 			omap->irq, ret);
-		goto err1;
+		goto err2;
 	}
 	dwc3_omap_enable_irqs(omap);
 	return 0;
 
+err2:
+	of_platform_depopulate(dev);
 err1:
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);

[PATCH 5.10 146/151] usb: dwc3: core: Prevent USB core invalid event buffer address access

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Selvarasu Ganesan <selvarasu.g@samsung.com>

commit 14e497183df28c006603cc67fd3797a537eef7b9 upstream.

This commit addresses an issue where the USB core could access an
invalid event buffer address during runtime suspend, potentially causing
SMMU faults and other memory issues in Exynos platforms. The problem
arises from the following sequence.
        1. In dwc3_gadget_suspend, there is a chance of a timeout when
        moving the USB core to the halt state after clearing the
        run/stop bit by software.
        2. In dwc3_core_exit, the event buffer is cleared regardless of
        the USB core's status, which may lead to an SMMU faults and
        other memory issues. if the USB core tries to access the event
        buffer address.

To prevent this hardware quirk on Exynos platforms, this commit ensures
that the event buffer address is not cleared by software  when the USB
core is active during runtime suspend by checking its status before
clearing the buffer address.

Cc: stable <stable@kernel.org>
Signed-off-by: Selvarasu Ganesan <selvarasu.g@samsung.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240815064836.1491-1-selvarasu.g@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/core.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -477,9 +477,17 @@ int dwc3_event_buffers_setup(struct dwc3
 void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
 {
 	struct dwc3_event_buffer	*evt;
+	u32				reg;
 
 	if (!dwc->ev_buf)
 		return;
+	/*
+	 * Exynos platforms may not be able to access event buffer if the
+	 * controller failed to halt on dwc3_core_exit().
+	 */
+	reg = dwc3_readl(dwc->regs, DWC3_DSTS);
+	if (!(reg & DWC3_DSTS_DEVCTRLHLT))
+		return;
 
 	evt = dwc->ev_buf;
 

[PATCH 5.10 147/151] usb: dwc3: st: fix probed platform device ref count on probe error path

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

commit ddfcfeba891064b88bb844208b43bef2ef970f0c upstream.

The probe function never performs any paltform device allocation, thus
error path "undo_platform_dev_alloc" is entirely bogus.  It drops the
reference count from the platform device being probed.  If error path is
triggered, this will lead to unbalanced device reference counts and
premature release of device resources, thus possible use-after-free when
releasing remaining devm-managed resources.

Fixes: f83fca0707c6 ("usb: dwc3: add ST dwc3 glue layer to manage dwc3 HC")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20240814093957.37940-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/dwc3-st.c |   11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -219,10 +219,8 @@ static int st_dwc3_probe(struct platform
 	dwc3_data->regmap = regmap;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "syscfg-reg");
-	if (!res) {
-		ret = -ENXIO;
-		goto undo_platform_dev_alloc;
-	}
+	if (!res)
+		return -ENXIO;
 
 	dwc3_data->syscfg_reg_off = res->start;
 
@@ -233,8 +231,7 @@ static int st_dwc3_probe(struct platform
 		devm_reset_control_get_exclusive(dev, "powerdown");
 	if (IS_ERR(dwc3_data->rstc_pwrdn)) {
 		dev_err(&pdev->dev, "could not get power controller\n");
-		ret = PTR_ERR(dwc3_data->rstc_pwrdn);
-		goto undo_platform_dev_alloc;
+		return PTR_ERR(dwc3_data->rstc_pwrdn);
 	}
 
 	/* Manage PowerDown */
@@ -300,8 +297,6 @@ undo_softreset:
 	reset_control_assert(dwc3_data->rstc_rst);
 undo_powerdown:
 	reset_control_assert(dwc3_data->rstc_pwrdn);
-undo_platform_dev_alloc:
-	platform_device_put(pdev);
 	return ret;
 }
 

[PATCH 5.10 148/151] usb: dwc3: st: add missing depopulate in probe error path

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

commit cd4897bfd14f6a5388b21ba45a066541a0425199 upstream.

Depopulate device in probe error paths to fix leak of children
resources.

Fixes: f83fca0707c6 ("usb: dwc3: add ST dwc3 glue layer to manage dwc3 HC")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240814093957.37940-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/dwc3-st.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -266,7 +266,7 @@ static int st_dwc3_probe(struct platform
 	if (!child_pdev) {
 		dev_err(dev, "failed to find dwc3 core device\n");
 		ret = -ENODEV;
-		goto err_node_put;
+		goto depopulate;
 	}
 
 	dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev);
@@ -282,6 +282,7 @@ static int st_dwc3_probe(struct platform
 	ret = st_dwc3_drd_init(dwc3_data);
 	if (ret) {
 		dev_err(dev, "drd initialisation failed\n");
+		of_platform_depopulate(dev);
 		goto undo_softreset;
 	}
 
@@ -291,6 +292,8 @@ static int st_dwc3_probe(struct platform
 	platform_set_drvdata(pdev, dwc3_data);
 	return 0;
 
+depopulate:
+	of_platform_depopulate(dev);
 err_node_put:
 	of_node_put(child);
 undo_softreset:

[PATCH 5.10 149/151] usb: core: sysfs: Unmerge @usb3_hardware_lpm_attr_group in remove_power_attributes()

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zijun Hu <quic_zijuhu@quicinc.com>

commit 3a8839bbb86da7968a792123ed2296d063871a52 upstream.

Device attribute group @usb3_hardware_lpm_attr_group is merged by
add_power_attributes(), but it is not unmerged explicitly, fixed by
unmerging it in remove_power_attributes().

Fixes: 655fe4effe0f ("usbcore: add sysfs support to xHCI usb3 hardware LPM")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20240820-sysfs_fix-v2-1-a9441487077e@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/sysfs.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -667,6 +667,7 @@ static int add_power_attributes(struct d
 
 static void remove_power_attributes(struct device *dev)
 {
+	sysfs_unmerge_group(&dev->kobj, &usb3_hardware_lpm_attr_group);
 	sysfs_unmerge_group(&dev->kobj, &usb2_hardware_lpm_attr_group);
 	sysfs_unmerge_group(&dev->kobj, &power_attr_group);
 }

[PATCH 5.10 150/151] scsi: aacraid: Fix double-free on probe failure

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <benh@debian.org>

[ Upstream commit 919ddf8336f0b84c0453bac583808c9f165a85c2 ]

aac_probe_one() calls hardware-specific init functions through the
aac_driver_ident::init pointer, all of which eventually call down to
aac_init_adapter().

If aac_init_adapter() fails after allocating memory for aac_dev::queues,
it frees the memory but does not clear that member.

After the hardware-specific init function returns an error,
aac_probe_one() goes down an error path that frees the memory pointed to
by aac_dev::queues, resulting.in a double-free.

Reported-by: Michael Gordon <m.gordon.zelenoborsky@gmail.com>
Link: https://bugs.debian.org/1075855
Fixes: 8e0c5ebde82b ("[SCSI] aacraid: Newer adapter communication iterface support")
Signed-off-by: Ben Hutchings <benh@debian.org>
Link: https://lore.kernel.org/r/ZsZvfqlQMveoL5KQ@decadent.org.uk
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/aacraid/comminit.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 355b16f0b1456..34e45c87cae03 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -642,6 +642,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 
 	if (aac_comm_init(dev)<0){
 		kfree(dev->queues);
+		dev->queues = NULL;
 		return NULL;
 	}
 	/*
@@ -649,6 +650,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	 */
 	if (aac_fib_setup(dev) < 0) {
 		kfree(dev->queues);
+		dev->queues = NULL;
 		return NULL;
 	}
 		
-- 
2.43.0

[PATCH 5.10 151/151] apparmor: fix policy_unpack_test on big endian systems

[Greg Kroah-Hartman]

5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Guenter Roeck <linux@roeck-us.net>

[ Upstream commit 98c0cc48e27e9d269a3e4db2acd72b486c88ec77 ]

policy_unpack_test fails on big endian systems because data byte order
is expected to be little endian but is generated in host byte order.
This results in test failures such as:

 # policy_unpack_test_unpack_array_with_null_name: EXPECTATION FAILED at security/apparmor/policy_unpack_test.c:150
    Expected array_size == (u16)16, but
        array_size == 4096 (0x1000)
        (u16)16 == 16 (0x10)
    # policy_unpack_test_unpack_array_with_null_name: pass:0 fail:1 skip:0 total:1
    not ok 3 policy_unpack_test_unpack_array_with_null_name
    # policy_unpack_test_unpack_array_with_name: EXPECTATION FAILED at security/apparmor/policy_unpack_test.c:164
    Expected array_size == (u16)16, but
        array_size == 4096 (0x1000)
        (u16)16 == 16 (0x10)
    # policy_unpack_test_unpack_array_with_name: pass:0 fail:1 skip:0 total:1

Add the missing endianness conversions when generating test data.

Fixes: 4d944bcd4e73 ("apparmor: add AppArmor KUnit tests for policy unpack")
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/apparmor/policy_unpack_test.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/security/apparmor/policy_unpack_test.c b/security/apparmor/policy_unpack_test.c
index 533137f45361c..4951d9bef5794 100644
--- a/security/apparmor/policy_unpack_test.c
+++ b/security/apparmor/policy_unpack_test.c
@@ -78,14 +78,14 @@ struct aa_ext *build_aa_ext_struct(struct policy_unpack_fixture *puf,
 	*(buf + 1) = strlen(TEST_U32_NAME) + 1;
 	strcpy(buf + 3, TEST_U32_NAME);
 	*(buf + 3 + strlen(TEST_U32_NAME) + 1) = AA_U32;
-	*((u32 *)(buf + 3 + strlen(TEST_U32_NAME) + 2)) = TEST_U32_DATA;
+	*((__le32 *)(buf + 3 + strlen(TEST_U32_NAME) + 2)) = cpu_to_le32(TEST_U32_DATA);
 
 	buf = e->start + TEST_NAMED_U64_BUF_OFFSET;
 	*buf = AA_NAME;
 	*(buf + 1) = strlen(TEST_U64_NAME) + 1;
 	strcpy(buf + 3, TEST_U64_NAME);
 	*(buf + 3 + strlen(TEST_U64_NAME) + 1) = AA_U64;
-	*((u64 *)(buf + 3 + strlen(TEST_U64_NAME) + 2)) = TEST_U64_DATA;
+	*((__le64 *)(buf + 3 + strlen(TEST_U64_NAME) + 2)) = cpu_to_le64(TEST_U64_DATA);
 
 	buf = e->start + TEST_NAMED_BLOB_BUF_OFFSET;
 	*buf = AA_NAME;
@@ -101,7 +101,7 @@ struct aa_ext *build_aa_ext_struct(struct policy_unpack_fixture *puf,
 	*(buf + 1) = strlen(TEST_ARRAY_NAME) + 1;
 	strcpy(buf + 3, TEST_ARRAY_NAME);
 	*(buf + 3 + strlen(TEST_ARRAY_NAME) + 1) = AA_ARRAY;
-	*((u16 *)(buf + 3 + strlen(TEST_ARRAY_NAME) + 2)) = TEST_ARRAY_SIZE;
+	*((__le16 *)(buf + 3 + strlen(TEST_ARRAY_NAME) + 2)) = cpu_to_le16(TEST_ARRAY_SIZE);
 
 	return e;
 }
-- 
2.43.0

Re: [PATCH 5.10 000/151] 5.10.225-rc1 review

[Dominique Martinet]

Greg Kroah-Hartman wrote on Sun, Sep 01, 2024 at 06:16:00PM +0200:
> This is the start of the stable review cycle for the 5.10.225 release.
> There are 151 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Tue, 03 Sep 2024 16:07:34 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.225-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
> and the diffstat can be found below.

Tested ee485d4aa099 ("Linux 5.10.225-rc1") on:
- arm i.MX6ULL (Armadillo 640)
- arm64 i.MX8MP (Armadillo G4)

No obvious regression in dmesg or basic tests:
Tested-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
-- 
Dominique Martinet

Re: [PATCH 5.10 130/151] Revert "Input: ioc3kbd - convert to platform remove callback returning void"

[Dominique Martinet]

Greg Kroah-Hartman wrote on Sun, Sep 01, 2024 at 06:18:10PM +0200:
> From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> 
> This reverts commit 0096d223f78cb48db1ae8ae9fd56d702896ba8ae which is
> commit 150e792dee9ca8416f3d375e48f2f4d7f701fc6b upstream.
> 
> It breaks the build and shouldn't be here, it was applied to make a
> follow-up one apply easier.
> 
> Reported-by: Dominique Martinet <asmadeus@codewreck.org>

It's a detail but if you fix anything else in this branch I'd appreciate
this mail being updated to my work address:
Reported-by: Dominique Martinet <dominique.martinet@atmark-techno.com>

(Sorry for the annoyance, just trying to keep the boundary with stable
kernel work I do for $job and 9p work on I do on my free time; if you're
not updating the patches feel free to leave it that way - thanks for
having taken the time to revert the commit in the first place!)

Cheers,
-- 
Dominique

Re: [PATCH 5.10 130/151] Revert "Input: ioc3kbd - convert to platform remove callback returning void"

[Greg Kroah-Hartman]

On Mon, Sep 02, 2024 at 10:15:30AM +0900, Dominique Martinet wrote:
> Greg Kroah-Hartman wrote on Sun, Sep 01, 2024 at 06:18:10PM +0200:
> > From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > 
> > This reverts commit 0096d223f78cb48db1ae8ae9fd56d702896ba8ae which is
> > commit 150e792dee9ca8416f3d375e48f2f4d7f701fc6b upstream.
> > 
> > It breaks the build and shouldn't be here, it was applied to make a
> > follow-up one apply easier.
> > 
> > Reported-by: Dominique Martinet <asmadeus@codewreck.org>
> 
> It's a detail but if you fix anything else in this branch I'd appreciate
> this mail being updated to my work address:
> Reported-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
> 
> (Sorry for the annoyance, just trying to keep the boundary with stable
> kernel work I do for $job and 9p work on I do on my free time; if you're
> not updating the patches feel free to leave it that way - thanks for
> having taken the time to revert the commit in the first place!)

We can't really change things that are already in the tree, so we just
copy the commit directly from that, sorry.

thanks for the contribution!

greg k-h

Re: [PATCH 5.10 130/151] Revert "Input: ioc3kbd - convert to platform remove callback returning void"

[Dominique Martinet]

Greg Kroah-Hartman wrote on Mon, Sep 02, 2024 at 08:03:24AM +0200:
> On Mon, Sep 02, 2024 at 10:15:30AM +0900, Dominique Martinet wrote:
> > Greg Kroah-Hartman wrote on Sun, Sep 01, 2024 at 06:18:10PM +0200:
> > > From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > > 
> > > This reverts commit 0096d223f78cb48db1ae8ae9fd56d702896ba8ae which is
> > > commit 150e792dee9ca8416f3d375e48f2f4d7f701fc6b upstream.
> > > 
> > > It breaks the build and shouldn't be here, it was applied to make a
> > > follow-up one apply easier.
> > > 
> > > Reported-by: Dominique Martinet <asmadeus@codewreck.org>
> > 
> > It's a detail but if you fix anything else in this branch I'd appreciate
> > this mail being updated to my work address:
> > Reported-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
> > 
> > (Sorry for the annoyance, just trying to keep the boundary with stable
> > kernel work I do for $job and 9p work on I do on my free time; if you're
> > not updating the patches feel free to leave it that way - thanks for
> > having taken the time to revert the commit in the first place!)
> 
> We can't really change things that are already in the tree, so we just
> copy the commit directly from that, sorry.

This commit isn't in tree yet -- it's a patch specific to the 5.10
branch that doesn't exist anywhere else (not a backport), and 5.10.225
hasn't been tagged yet.

With that said I'll reiterate it's probably not worth the trouble,
just replying because I don't understand where that "already in the
tree" came from.

Thanks,
-- 
Dominique

Re: [PATCH 5.10 130/151] Revert "Input: ioc3kbd - convert to platform remove callback returning void"

[Greg Kroah-Hartman]

On Mon, Sep 02, 2024 at 03:42:33PM +0900, Dominique Martinet wrote:
> Greg Kroah-Hartman wrote on Mon, Sep 02, 2024 at 08:03:24AM +0200:
> > On Mon, Sep 02, 2024 at 10:15:30AM +0900, Dominique Martinet wrote:
> > > Greg Kroah-Hartman wrote on Sun, Sep 01, 2024 at 06:18:10PM +0200:
> > > > From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > > > 
> > > > This reverts commit 0096d223f78cb48db1ae8ae9fd56d702896ba8ae which is
> > > > commit 150e792dee9ca8416f3d375e48f2f4d7f701fc6b upstream.
> > > > 
> > > > It breaks the build and shouldn't be here, it was applied to make a
> > > > follow-up one apply easier.
> > > > 
> > > > Reported-by: Dominique Martinet <asmadeus@codewreck.org>
> > > 
> > > It's a detail but if you fix anything else in this branch I'd appreciate
> > > this mail being updated to my work address:
> > > Reported-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
> > > 
> > > (Sorry for the annoyance, just trying to keep the boundary with stable
> > > kernel work I do for $job and 9p work on I do on my free time; if you're
> > > not updating the patches feel free to leave it that way - thanks for
> > > having taken the time to revert the commit in the first place!)
> > 
> > We can't really change things that are already in the tree, so we just
> > copy the commit directly from that, sorry.
> 
> This commit isn't in tree yet -- it's a patch specific to the 5.10
> branch that doesn't exist anywhere else (not a backport), and 5.10.225
> hasn't been tagged yet.
> 
> With that said I'll reiterate it's probably not worth the trouble,
> just replying because I don't understand where that "already in the
> tree" came from.

Ah, you are right, sorry about that.  Dealing with thousands of patches
here...

I'll go fix it up right now, not a problem.

greg k-h

Re: [PATCH 5.10 000/151] 5.10.225-rc1 review

[Pavel Machek]

[-- Attachment #1: Type: text/plain, Size: 662 bytes --]

Hi!

> This is the start of the stable review cycle for the 5.10.225 release.
> There are 151 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.

CIP testing did not find any problems here:

https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/tree/linux-5.10.y

Tested-by: Pavel Machek (CIP) <pavel@denx.de>

Best regards,
                                                                Pavel
-- 
DENX Software Engineering GmbH,        Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]

Re: [PATCH 5.10 000/151] 5.10.225-rc1 review

[Naresh Kamboju]

On Sun, 1 Sept 2024 at 22:20, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.10.225 release.
> There are 151 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Tue, 03 Sep 2024 16:07:34 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.225-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

The Powerpc defconfig builds failed on Linux stable-rc due to following
build warnings / errors with clang-18 and gcc-12.

This is a same problem on current stable-rc review on
   - 5.4.283-rc1 review
   - 5.10.225-rc1 review
   - 5.15.166-rc1 review

In the case of stable-rc linux-5.10.y

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Anders bisected this to first bad commit id as,
  fbdev: offb: replace of_node_put with __free(device_node)
  [ Upstream commit ce4a7ae84a58b9f33aae8d6c769b3c94f3d5ce76 ]

build log:
--------
drivers/video/fbdev/offb.c: In function 'offb_init_palette_hacks':
drivers/video/fbdev/offb.c:357:47: error: expected '=', ',', ';',
'asm' or '__attribute__' before '__free'
  357 |                 struct device_node *pciparent
__free(device_node) = of_get_parent(dp);
      |                                               ^~~~~~
drivers/video/fbdev/offb.c:357:47: error: implicit declaration of
function '__free'; did you mean 'kfree'?
[-Werror=implicit-function-declaration]
  357 |                 struct device_node *pciparent
__free(device_node) = of_get_parent(dp);
      |                                               ^~~~~~
      |                                               kfree
drivers/video/fbdev/offb.c:357:54: error: 'device_node' undeclared
(first use in this function)
  357 |                 struct device_node *pciparent
__free(device_node) = of_get_parent(dp);
      |                                                      ^~~~~~~~~~~
drivers/video/fbdev/offb.c:357:54: note: each undeclared identifier is
reported only once for each function it appears in
drivers/video/fbdev/offb.c:358:17: warning: ISO C90 forbids mixed
declarations and code [-Wdeclaration-after-statement]
  358 |                 const u32 *vid, *did;
      |                 ^~~~~
drivers/video/fbdev/offb.c:359:39: error: 'pciparent' undeclared
(first use in this function); did you mean 'xa_parent'?
  359 |                 vid = of_get_property(pciparent, "vendor-id", NULL);
      |                                       ^~~~~~~~~
      |                                       xa_parent
cc1: some warnings being treated as errors


Build Log links,
--------
 - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.10.y/build/v5.10.224-152-gee485d4aa099/testrun/24999742/suite/build/test/gcc-12-ppc6xx_defconfig/log

Build failed comparison:
 - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.10.y/build/v5.10.224-152-gee485d4aa099/testrun/24999742/suite/build/test/gcc-12-ppc6xx_defconfig/history/

metadata:
----
  git describe: v5.10.224-152-gee485d4aa099
  git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
  git sha: ee485d4aa099209aaf39d4a5b8fe624ce3b3499d
  kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2lTio0YVAvyu3ldUd5EvqiE4ii0/config
  build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2lTio0YVAvyu3ldUd5EvqiE4ii0/
  toolchain: clang-18 and gcc-12
  config: defconfig
  arch: powerpc

Steps to reproduce:
---------
 - tuxmake --runtime podman --target-arch powerpc --toolchain gcc-12
--kconfig ppc6xx_defconfig


--
Linaro LKFT
https://lkft.linaro.org

Re: [PATCH 5.10 000/151] 5.10.225-rc1 review

[Florian Fainelli]

On 9/1/2024 9:16 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.10.225 release.
> There are 151 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Tue, 03 Sep 2024 16:07:34 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.225-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels, build tested on 
BMIPS_GENERIC:

Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

Re: [PATCH 5.10 000/151] 5.10.225-rc1 review

[Jon Hunter]

On Sun, 01 Sep 2024 18:16:00 +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.10.225 release.
> There are 151 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Tue, 03 Sep 2024 16:07:34 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.225-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

All tests passing for Tegra ...

Test results for stable-v5.10:
    10 builds:	10 pass, 0 fail
    26 boots:	26 pass, 0 fail
    67 tests:	67 pass, 0 fail

Linux version:	5.10.225-rc1-gee485d4aa099
Boards tested:	tegra124-jetson-tk1, tegra186-p2771-0000,
                tegra194-p2972-0000, tegra194-p3509-0000+p3668-0000,
                tegra20-ventana, tegra210-p2371-2180,
                tegra210-p3450-0000, tegra30-cardhu-a04

Tested-by: Jon Hunter <jonathanh@nvidia.com>

Jon

Re: [PATCH 5.10 000/151] 5.10.225-rc1 review

[Mark Brown]

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On Sun, Sep 01, 2024 at 06:16:00PM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.10.225 release.
> There are 151 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.

Tested-by: Mark Brown <broonie@kernel.org>

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Re: [PATCH 5.10 000/151] 5.10.225-rc1 review

[Greg Kroah-Hartman]

On Mon, Sep 02, 2024 at 02:03:13PM +0530, Naresh Kamboju wrote:
> On Sun, 1 Sept 2024 at 22:20, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 5.10.225 release.
> > There are 151 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Tue, 03 Sep 2024 16:07:34 +0000.
> > Anything received after that time might be too late.
> >
> > The whole patch series can be found in one patch at:
> >         https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.225-rc1.gz
> > or in the git tree and branch at:
> >         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
> 
> The Powerpc defconfig builds failed on Linux stable-rc due to following
> build warnings / errors with clang-18 and gcc-12.
> 
> This is a same problem on current stable-rc review on
>    - 5.4.283-rc1 review
>    - 5.10.225-rc1 review
>    - 5.15.166-rc1 review
> 
> In the case of stable-rc linux-5.10.y
> 
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> 
> Anders bisected this to first bad commit id as,
>   fbdev: offb: replace of_node_put with __free(device_node)
>   [ Upstream commit ce4a7ae84a58b9f33aae8d6c769b3c94f3d5ce76 ]

Now dropped, thanks.

greg k-h

Re: [PATCH 5.10 064/151] btrfs: change BUG_ON to assertion when checking for delayed_node root

[Dominique Martinet]

(this patch was already merged to stable last window, I was late on
review -- this is more feedback for master that has the same code)

Greg Kroah-Hartman wrote on Sun, Sep 01, 2024 at 06:17:04PM +0200:
> From: David Sterba <dsterba@suse.com>
> 
> [ Upstream commit be73f4448b607e6b7ce41cd8ef2214fdf6e7986f ]
> 
> The pointer to root is initialized in btrfs_init_delayed_node(), no need
> to check for it again. Change the BUG_ON to assertion.
> 
> Reviewed-by: Josef Bacik <josef@toxicpanda.com>
> Reviewed-by: Anand Jain <anand.jain@oracle.com>
> Signed-off-by: David Sterba <dsterba@suse.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  fs/btrfs/delayed-inode.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
> index cdfc791b3c405..e2afaa70ae5e5 100644
> --- a/fs/btrfs/delayed-inode.c
> +++ b/fs/btrfs/delayed-inode.c
> @@ -986,7 +986,7 @@ static void btrfs_release_delayed_inode(struct btrfs_delayed_node *delayed_node)
>  
>  	if (delayed_node &&
>  	    test_bit(BTRFS_DELAYED_NODE_INODE_DIRTY, &delayed_node->flags)) {
> -		BUG_ON(!delayed_node->root);
> +		ASSERT(delayed_node->root);

Note that if !delayed_node->root we will bug on a null deref immediately anyway.

This patch was missing just one line of context, I've added it below:
>  		clear_bit(BTRFS_DELAYED_NODE_INODE_DIRTY, &delayed_node->flags);
>  		delayed_node->count--;
>  
> 		delayed_root = delayed_node->root->fs_info->delayed_root;

So, ASSERT doesn't feel appropriate -- if you want to protect
non-developers from BUGs then the check needs to be spelled out and
return early or not enter the if; or it really cannot happen (it used to
be a BUG...) and the check can be removed altogether.

-- 
Dominique Martinet | Asmadeus

Re: [PATCH 5.10 064/151] btrfs: change BUG_ON to assertion when checking for delayed_node root

[Greg Kroah-Hartman]

On Wed, Sep 11, 2024 at 01:02:36PM +0900, Dominique Martinet wrote:
> (this patch was already merged to stable last window, I was late on
> review -- this is more feedback for master that has the same code)

I recommend providing feedback on the developer list for the subsystem,
in response to the posted patch originally.  Here you got almost none of
the developers involved in it :(

thanks,

greg k-h