From: syzbot <syzbot+34ad5fab48f7bf510349@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org, ryasuoka@redhat.com,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] KMSAN: kernel-infoleak in __skb_datagram_iter (2)
Date: Mon, 19 Feb 2024 21:27:01 -0800 [thread overview]
Message-ID: <000000000000c15e6c0611c97530@google.com> (raw)
In-Reply-To: <ZdQvap_8BIiIq_GB@zeus>
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
.
[ 10.076074][ T1] fuse: init (API version 7.39)
[ 10.080364][ T1] orangefs_debugfs_init: called with debug mask: :none: :0:
[ 10.082002][ T1] orangefs_init: module version upstream loaded
[ 10.083592][ T1] JFS: nTxBlock = 8192, nTxLock = 65536
[ 10.099770][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled
[ 10.104241][ T1] 9p: Installing v9fs 9p2000 file system support
[ 10.105539][ T1] NILFS version 2 loaded
[ 10.106156][ T1] befs: version: 0.9.3
[ 10.107195][ T1] ocfs2: Registered cluster interface o2cb
[ 10.108527][ T1] ocfs2: Registered cluster interface user
[ 10.111379][ T1] OCFS2 User DLM kernel interface loaded
[ 10.118460][ T1] gfs2: GFS2 installed
[ 10.135588][ T1] ceph: loaded (mds proto 32)
[ 12.024322][ T1] NET: Registered PF_ALG protocol family
[ 12.025308][ T1] xor: automatically using best checksumming function avx
[ 12.027314][ T1] async_tx: api initialized (async)
[ 12.028180][ T1] Key type asymmetric registered
[ 12.029109][ T1] Asymmetric key parser 'x509' registered
[ 12.030157][ T1] Asymmetric key parser 'pkcs8' registered
[ 12.030980][ T1] Key type pkcs7_test registered
[ 12.032530][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240)
[ 12.034815][ T1] io scheduler mq-deadline registered
[ 12.035601][ T1] io scheduler kyber registered
[ 12.036477][ T1] io scheduler bfq registered
[ 12.043584][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 12.054905][ T1] ACPI: button: Power Button [PWRF]
[ 12.061506][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1
[ 12.071048][ T1] ACPI: button: Sleep Button [SLPF]
[ 12.086912][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00
[ 12.130351][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11
[ 12.135899][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver
[ 12.175460][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10
[ 12.181044][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver
[ 12.221372][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10
[ 12.226897][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver
[ 12.317580][ T257] kworker/u4:0 (257) used greatest stack depth: 11000 bytes left
[ 12.798023][ T1] N_HDLC line discipline registered with maxframe=4096
[ 12.805613][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 12.815494][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 12.835349][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A
[ 12.855309][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A
[ 12.875589][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A
[ 12.907146][ T1] Non-volatile memory driver v1.3
[ 12.921393][ T1] Linux agpgart interface v0.103
[ 12.931868][ T1] ACPI: bus type drm_connector registered
[ 12.943489][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
[ 12.959783][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
[ 13.248241][ T1] Console: switching to colour frame buffer device 128x48
[ 13.314754][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device
[ 13.322329][ T1] usbcore: registered new interface driver udl
[ 13.472888][ T1] brd: module loaded
[ 13.561610][ T1] loop: module loaded
[ 13.689528][ T1] zram: Added device: zram0
[ 13.702671][ T1] null_blk: disk nullb0 created
[ 13.707565][ T1] null_blk: module loaded
[ 13.712923][ T1] Guest personality initialized and is inactive
[ 13.719805][ T1] VMCI host device registered (name=vmci, major=10, minor=118)
[ 13.727398][ T1] Initialized host personality
[ 13.732444][ T1] usbcore: registered new interface driver rtsx_usb
[ 13.741306][ T1] usbcore: registered new interface driver viperboard
[ 13.748470][ T1] usbcore: registered new interface driver dln2
[ 13.755172][ T1] usbcore: registered new interface driver pn533_usb
[ 13.765466][ T1] nfcsim 0.2 initialized
[ 13.769944][ T1] usbcore: registered new interface driver port100
[ 13.776737][ T1] usbcore: registered new interface driver nfcmrvl
[ 13.789159][ T1] Loading iSCSI transport class v2.0-870.
[ 13.809621][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues
[ 13.830894][ T1] scsi host0: Virtio SCSI HBA
[ 14.080706][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256
[ 14.093000][ T41] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6
[ 14.119106][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288
[ 14.128024][ T1] db_root: cannot open: /etc/target
[ 14.157608][ T1] =====================================================
[ 14.157758][ T1] BUG: KMSAN: use-after-free in __list_del_entry_valid_or_report+0x19e/0x490
[ 14.157853][ T1] __list_del_entry_valid_or_report+0x19e/0x490
[ 14.157942][ T1] stack_depot_save_flags+0x3e7/0x7b0
[ 14.158005][ T1] stack_depot_save+0x12/0x20
[ 14.158059][ T1] ref_tracker_alloc+0x215/0x700
[ 14.158123][ T1] linkwatch_fire_event+0x32b/0x6d0
[ 14.158208][ T1] netif_carrier_off+0xec/0x110
[ 14.158278][ T1] bond_create+0x19d/0x2a0
[ 14.158354][ T1] bonding_init+0x1a7/0x2d0
[ 14.158412][ T1] do_one_initcall+0x216/0x960
[ 14.158478][ T1] do_initcall_level+0x140/0x350
[ 14.158540][ T1] do_initcalls+0xf0/0x1d0
[ 14.158595][ T1] do_basic_setup+0x22/0x30
[ 14.158651][ T1] kernel_init_freeable+0x300/0x4b0
[ 14.158713][ T1] kernel_init+0x2f/0x7e0
[ 14.158781][ T1] ret_from_fork+0x66/0x80
[ 14.158855][ T1] ret_from_fork_asm+0x11/0x20
[ 14.158921][ T1]
[ 14.158930][ T1] Uninit was created at:
[ 14.158959][ T1] __free_pages_ok+0x133/0xeb0
[ 14.159060][ T1] alloc_pages_exact+0x2f5/0x350
[ 14.159060][ T1] vring_alloc_queue_split+0x2d9/0x990
[ 14.159060][ T1] vring_create_virtqueue_split+0x89/0x380
[ 14.159060][ T1] vring_create_virtqueue+0x101/0x1a0
[ 14.159060][ T1] setup_vq+0x175/0x510
[ 14.159060][ T1] vp_setup_vq+0x103/0x630
[ 14.159060][ T1] vp_find_vqs_msix+0x1162/0x16c0
[ 14.159060][ T1] vp_find_vqs+0x78/0x770
[ 14.159060][ T1] virtscsi_init+0xff7/0x17a0
[ 14.159060][ T1] virtscsi_probe+0x43b/0xfe0
[ 14.159060][ T1] virtio_dev_probe+0x16df/0x1900
[ 14.159060][ T1] really_probe+0x506/0xf40
[ 14.159060][ T1] __driver_probe_device+0x2a7/0x5d0
[ 14.159060][ T1] driver_probe_device+0x72/0x7b0
[ 14.159060][ T1] __driver_attach+0x710/0xa30
[ 14.159060][ T1] bus_for_each_dev+0x34c/0x530
[ 14.159060][ T1] driver_attach+0x51/0x60
[ 14.159060][ T1] bus_add_driver+0x747/0xca0
[ 14.159060][ T1] driver_register+0x3fb/0x650
[ 14.159060][ T1] register_virtio_driver+0xd1/0xf0
[ 14.159060][ T1] virtio_scsi_init+0x123/0x2f0
[ 14.159060][ T1] do_one_initcall+0x216/0x960
[ 14.159060][ T1] do_initcall_level+0x140/0x350
[ 14.159060][ T1] do_initcalls+0xf0/0x1d0
[ 14.159060][ T1] do_basic_setup+0x22/0x30
[ 14.159060][ T1] kernel_init_freeable+0x300/0x4b0
[ 14.159060][ T1] kernel_init+0x2f/0x7e0
[ 14.159060][ T1] ret_from_fork+0x66/0x80
[ 14.159060][ T1] ret_from_fork_asm+0x11/0x20
[ 14.159060][ T1]
[ 14.159060][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc5-syzkaller-gb401b621758e-dirty #0
[ 14.159060][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
[ 14.159060][ T1] =====================================================
[ 14.159060][ T1] Disabling lock debugging due to kernel taint
[ 14.159060][ T1] Kernel panic - not syncing: kmsan.panic set ...
[ 14.159060][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 6.8.0-rc5-syzkaller-gb401b621758e-dirty #0
[ 14.159060][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
[ 14.159060][ T1] Call Trace:
[ 14.159060][ T1] <TASK>
[ 14.159060][ T1] dump_stack_lvl+0x1bf/0x240
[ 14.159060][ T1] dump_stack+0x1e/0x20
[ 14.159060][ T1] panic+0x4de/0xc90
[ 14.159060][ T1] kmsan_report+0x2d0/0x2d0
[ 14.159060][ T1] ? filter_irq_stacks+0x164/0x1a0
[ 14.159060][ T1] ? __msan_warning+0x96/0x110
[ 14.159060][ T1] ? __list_del_entry_valid_or_report+0x19e/0x490
[ 14.159060][ T1] ? stack_depot_save_flags+0x3e7/0x7b0
[ 14.159060][ T1] ? stack_depot_save+0x12/0x20
[ 14.159060][ T1] ? ref_tracker_alloc+0x215/0x700
[ 14.159060][ T1] ? linkwatch_fire_event+0x32b/0x6d0
[ 14.159060][ T1] ? netif_carrier_off+0xec/0x110
[ 14.159060][ T1] ? bond_create+0x19d/0x2a0
[ 14.159060][ T1] ? bonding_init+0x1a7/0x2d0
[ 14.159060][ T1] ? do_one_initcall+0x216/0x960
[ 14.159060][ T1] ? do_initcall_level+0x140/0x350
[ 14.159060][ T1] ? do_initcalls+0xf0/0x1d0
[ 14.159060][ T1] ? do_basic_setup+0x22/0x30
[ 14.159060][ T1] ? kernel_init_freeable+0x300/0x4b0
[ 14.159060][ T1] ? kernel_init+0x2f/0x7e0
[ 14.159060][ T1] ? ret_from_fork+0x66/0x80
[ 14.159060][ T1] ? ret_from_fork_asm+0x11/0x20
[ 14.159060][ T1] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[ 14.159060][ T1] ? _raw_spin_lock_irqsave+0x35/0xc0
[ 14.159060][ T1] ? filter_irq_stacks+0x60/0x1a0
[ 14.159060][ T1] ? stack_depot_save_flags+0x2c/0x7b0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[ 14.159060][ T1] __msan_warning+0x96/0x110
[ 14.159060][ T1] __list_del_entry_valid_or_report+0x19e/0x490
[ 14.159060][ T1] stack_depot_save_flags+0x3e7/0x7b0
[ 14.159060][ T1] stack_depot_save+0x12/0x20
[ 14.159060][ T1] ref_tracker_alloc+0x215/0x700
[ 14.159060][ T1] ? linkwatch_fire_event+0x32b/0x6d0
[ 14.159060][ T1] ? netif_carrier_off+0xec/0x110
[ 14.159060][ T1] ? bond_create+0x19d/0x2a0
[ 14.159060][ T1] ? bonding_init+0x1a7/0x2d0
[ 14.159060][ T1] ? do_one_initcall+0x216/0x960
[ 14.159060][ T1] ? do_initcall_level+0x140/0x350
[ 14.159060][ T1] ? do_initcalls+0xf0/0x1d0
[ 14.159060][ T1] ? do_basic_setup+0x22/0x30
[ 14.159060][ T1] ? kernel_init_freeable+0x300/0x4b0
[ 14.159060][ T1] ? kernel_init+0x2f/0x7e0
[ 14.159060][ T1] ? ret_from_fork+0x66/0x80
[ 14.159060][ T1] ? ret_from_fork_asm+0x11/0x20
[ 14.159060][ T1] ? kmsan_internal_unpoison_memory+0x14/0x20
[ 14.159060][ T1] linkwatch_fire_event+0x32b/0x6d0
[ 14.159060][ T1] ? advisor_target_scan_time_store+0xe0/0x170
[ 14.159060][ T1] netif_carrier_off+0xec/0x110
[ 14.159060][ T1] bond_create+0x19d/0x2a0
[ 14.159060][ T1] bonding_init+0x1a7/0x2d0
[ 14.159060][ T1] ? spi_dln2_driver_init+0x40/0x40
[ 14.159060][ T1] do_one_initcall+0x216/0x960
[ 14.159060][ T1] ? spi_dln2_driver_init+0x40/0x40
[ 14.159060][ T1] ? kmsan_get_metadata+0xb0/0x1c0
[ 14.159060][ T1] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[ 14.159060][ T1] ? filter_irq_stacks+0x164/0x1a0
[ 14.159060][ T1] ? stack_depot_save_flags+0x2c/0x7b0
[ 14.159060][ T1] ? skip_spaces+0x8f/0xc0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[ 14.159060][ T1] ? parse_args+0x1511/0x15e0
[ 14.159060][ T1] ? kmsan_get_metadata+0x146/0x1c0
[ 14.159060][ T1] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[ 14.159060][ T1] ? spi_dln2_driver_init+0x40/0x40
[ 14.159060][ T1] do_initcall_level+0x140/0x350
[ 14.159060][ T1] do_initcalls+0xf0/0x1d0
[ 14.159060][ T1] ? arch_cpuhp_init_parallel_bringup+0xe0/0xe0
[ 14.159060][ T1] do_basic_setup+0x22/0x30
[ 14.159060][ T1] kernel_init_freeable+0x300/0x4b0
[ 14.159060][ T1] ? rest_init+0x260/0x260
[ 14.159060][ T1] kernel_init+0x2f/0x7e0
[ 14.159060][ T1] ? rest_init+0x260/0x260
[ 14.159060][ T1] ret_from_fork+0x66/0x80
[ 14.159060][ T1] ? rest_init+0x260/0x260
[ 14.159060][ T1] ret_from_fork_asm+0x11/0x20
[ 14.159060][ T1] </TASK>
[ 14.159060][ T1] Kernel Offset: disabled
syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.21.4'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3485226163=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at 3222d10cb
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:32: run command via tools/syz-env for best compatibility, see:
Makefile:33: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=3222d10cbe77bbedb5a7c455e5bcb6b7081a63b7 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20231213-164354'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=3222d10cbe77bbedb5a7c455e5bcb6b7081a63b7 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20231213-164354'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=3222d10cbe77bbedb5a7c455e5bcb6b7081a63b7 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20231213-164354'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"3222d10cbe77bbedb5a7c455e5bcb6b7081a63b7\"
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=1556f362180000
Tested on:
commit: b401b621 Linux 6.8-rc5
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=d33318d4e4a0d226
dashboard link: https://syzkaller.appspot.com/bug?extid=34ad5fab48f7bf510349
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=127e7e94180000
next parent reply other threads:[~2024-02-20 5:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <ZdQvap_8BIiIq_GB@zeus>
2024-02-20 5:27 ` syzbot [this message]
[not found] <ZdSUXJYRA8jatpIP@zeus>
2024-02-20 12:25 ` [syzbot] [net?] KMSAN: kernel-infoleak in __skb_datagram_iter (2) syzbot
[not found] <20240220.161605.1886801832131178688.syoshida@redhat.com>
2024-02-20 7:47 ` syzbot
[not found] <ZdQRnIUGz-j1ubag@zeus>
2024-02-20 2:56 ` syzbot
[not found] <CAHpthZpJeO1JGpOS3h_7n-wu28pEZuxo-SVB=x=OJKXpZ71Brg@mail.gmail.com>
2024-02-17 14:55 ` syzbot
[not found] <CAHpthZoG-4eO91UNScaiL1GUcoTZRDMQDzTZ0RvhGZdRZHHGLw@mail.gmail.com>
2024-02-17 12:58 ` syzbot
[not found] <CAHpthZr+VHsntmc5QRrL+viRKDu4sWJcX2Yf+oauEv9FghyB0A@mail.gmail.com>
2024-02-15 9:51 ` syzbot
2024-02-02 13:26 syzbot
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