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Thu, 08 Dec 2022 19:46:26 -0800 (PST) Date: Thu, 08 Dec 2022 19:46:26 -0800 In-Reply-To: <20221209030750.1743-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000085901e05ef5cffda@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in rxrpc_destroy_all_locals From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot tried to test the proposed patch but the build/boot failed: 1] IPsec XFRM device driver [ 10.391370][ T1] NET: Registered PF_INET6 protocol family [ 10.401430][ T1] Segment Routing with IPv6 [ 10.402451][ T1] RPL Segment Routing with IPv6 [ 10.403552][ T1] In-situ OAM (IOAM) with IPv6 [ 10.404513][ T1] mip6: Mobile IPv6 [ 10.408666][ T1] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 10.414909][ T1] ip6_gre: GRE over IPv6 tunneling driver [ 10.418561][ T1] NET: Registered PF_PACKET protocol family [ 10.420016][ T1] NET: Registered PF_KEY protocol family [ 10.421217][ T1] Bridge firewalling registered [ 10.422716][ T1] NET: Registered PF_X25 protocol family [ 10.423756][ T1] X25: Linux Version 0.2 [ 10.464058][ T1] NET: Registered PF_NETROM protocol family [ 10.504639][ T1] NET: Registered PF_ROSE protocol family [ 10.506106][ T1] NET: Registered PF_AX25 protocol family [ 10.508103][ T1] can: controller area network core [ 10.509722][ T1] NET: Registered PF_CAN protocol family [ 10.510710][ T1] can: raw protocol [ 10.511327][ T1] can: broadcast manager protocol [ 10.512447][ T1] can: netlink gateway - max_hops=1 [ 10.513228][ T1] can: SAE J1939 [ 10.514598][ T1] can: isotp protocol [ 10.515523][ T1] Bluetooth: RFCOMM TTY layer initialized [ 10.517265][ T1] Bluetooth: RFCOMM socket layer initialized [ 10.518316][ T1] Bluetooth: RFCOMM ver 1.11 [ 10.519103][ T1] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 10.520174][ T1] Bluetooth: BNEP filters: protocol multicast [ 10.521428][ T1] Bluetooth: BNEP socket layer initialized [ 10.522281][ T1] Bluetooth: CMTP (CAPI Emulation) ver 1.0 [ 10.523367][ T1] Bluetooth: CMTP socket layer initialized [ 10.524213][ T1] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 10.525212][ T1] Bluetooth: HIDP socket layer initialized [ 10.529275][ T1] NET: Registered PF_RXRPC protocol family [ 10.530339][ T1] Key type rxrpc registered [ 10.531082][ T1] Key type rxrpc_s registered [ 10.532752][ T1] NET: Registered PF_KCM protocol family [ 10.534825][ T1] lec:lane_module_init: lec.c: initialized [ 10.537240][ T1] mpoa:atm_mpoa_init: mpc.c: initialized [ 10.539560][ T1] l2tp_core: L2TP core driver, V2.0 [ 10.541140][ T1] l2tp_ppp: PPPoL2TP kernel driver, V2.0 [ 10.542715][ T1] l2tp_ip: L2TP IP encapsulation support (L2TPv3) [ 10.544849][ T1] l2tp_netlink: L2TP netlink interface [ 10.546686][ T1] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) [ 10.549082][ T1] l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2TPv3) [ 10.550677][ T1] NET: Registered PF_PHONET protocol family [ 10.552447][ T1] 8021q: 802.1Q VLAN Support v1.8 [ 10.565308][ T1] DCCP: Activated CCID 2 (TCP-like) [ 10.567991][ T1] DCCP: Activated CCID 3 (TCP-Friendly Rate Control) [ 10.570250][ T1] sctp: Hash tables configured (bind 32/56) [ 10.573190][ T1] NET: Registered PF_RDS protocol family [ 10.574970][ T1] Registered RDS/infiniband transport [ 10.577010][ T1] Registered RDS/tcp transport [ 10.578040][ T1] tipc: Activated (version 2.0.0) [ 10.580751][ T1] NET: Registered PF_TIPC protocol family [ 10.582721][ T1] tipc: Started in single node mode [ 10.584345][ T1] NET: Registered PF_SMC protocol family [ 10.585878][ T1] 9pnet: Installing 9P2000 support [ 10.588031][ T1] NET: Registered PF_CAIF protocol family [ 10.594274][ T1] NET: Registered PF_IEEE802154 protocol family [ 10.596365][ T1] Key type dns_resolver registered [ 10.598569][ T1] Key type ceph registered [ 10.600505][ T1] libceph: loaded (mon/osd proto 15/24) [ 10.603175][ T1] batman_adv: B.A.T.M.A.N. advanced 2022.3 (compatibility version 15) loaded [ 10.606338][ T1] openvswitch: Open vSwitch switching datapath [ 10.610563][ T1] NET: Registered PF_VSOCK protocol family [ 10.612883][ T1] mpls_gso: MPLS GSO support [ 10.632582][ T1] IPI shorthand broadcast: enabled [ 10.634432][ T1] AVX2 version of gcm_enc/dec engaged. [ 10.636283][ T1] AES CTR mode by8 optimization enabled [ 11.036331][ T3320] ------------[ cut here ]------------ [ 11.036432][ T3320] WARNING: CPU: 1 PID: 3320 at kernel/rcu/tree_plugin.h:269 rcu_note_context_switch+0x913/0x1870 [ 11.036432][ T3320] Modules linked in: [ 11.036432][ T3320] CPU: 1 PID: 3320 Comm: kworker/u4:0 Not tainted 6.1.0-rc8-next-20221207-syzkaller-dirty #0 [ 11.036432][ T3320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 11.036432][ T3320] RIP: 0010:rcu_note_context_switch+0x913/0x1870 [ 11.036432][ T3320] Code: 7b 11 00 0f 85 f8 06 00 00 45 85 ff 0f 84 9b f8 ff ff 8b 05 ef 39 53 10 8d 50 01 83 f8 64 89 15 e3 39 53 10 0f 8e 83 f8 ff ff <0f> 0b e9 7c f8 ff ff 48 8d 7b 20 c6 43 11 00 48 b8 00 00 00 00 00 [ 11.036432][ T3320] RSP: 0000:ffffc9000e2bf3d0 EFLAGS: 00010002 [ 11.057837][ T3320] RAX: 0000000000000065 RBX: ffff8880b993c440 RCX: 0000000000000000 [ 11.059836][ T3320] RDX: 0000000000000066 RSI: 0000000000000004 RDI: 0000000000000001 [ 11.062326][ T3320] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8c79be43 [ 11.064438][ T3320] R10: fffffbfff18f37c8 R11: ffffffff8c79bf00 R12: ffffffff8c79be40 [ 11.066489][ T3320] R13: ffff8880b993c460 R14: ffff8880b993c451 R15: 0000000000000001 [ 11.068944][ T3320] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 11.071125][ T3320] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.073264][ T3320] CR2: 0000000000000000 CR3: 000000000c48e000 CR4: 00000000003506e0 [ 11.073264][ T3320] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 11.078150][ T3320] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 11.080625][ T3320] Call Trace: [ 11.082027][ T3320] [ 11.083007][ T3320] ? lockdep_hardirqs_off+0x94/0xd0 [ 11.083007][ T3320] ? preempt_schedule_notrace+0x5f/0xe0 [ 11.083007][ T3320] __schedule+0x24c/0x5450 [ 11.083007][ T3320] ? asm_sysvec_reschedule_ipi+0x1a/0x20 [ 11.083007][ T3320] ? pvclock_clocksource_read+0xd4/0x530 [ 11.083007][ T3320] ? io_schedule_timeout+0x150/0x150 [ 11.083007][ T3320] ? preempt_schedule_notrace_thunk+0x1a/0x20 [ 11.083007][ T3320] preempt_schedule_notrace+0x5f/0xe0 [ 11.083007][ T3320] preempt_schedule_notrace_thunk+0x1a/0x20 [ 11.083007][ T3320] ? sched_clock_local+0x139/0x1d0 [ 11.083007][ T3320] sched_clock_cpu+0x20d/0x2b0 [ 11.083007][ T3320] ? save_stack+0xbb/0x1e0 [ 11.083007][ T3320] ? prepare_to_wait+0x380/0x380 [ 11.083007][ T3320] ? __alloc_pages+0x1cb/0x5b0 [ 11.083007][ T3320] ? alloc_pages+0x1aa/0x270 [ 11.083007][ T3320] ? allocate_slab+0x25f/0x350 [ 11.083007][ T3320] ? ___slab_alloc+0xa91/0x1400 [ 11.083007][ T3320] ? __slab_alloc.constprop.0+0x56/0xa0 [ 11.083007][ T3320] ? kmem_cache_alloc+0x379/0x430 [ 11.083007][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.083007][ T3320] ? mas_preallocate+0x1bb/0x360 [ 11.083007][ T3320] __set_page_owner_handle+0x2ab/0x3b0 [ 11.083007][ T3320] __set_page_owner+0x48/0x60 [ 11.083007][ T3320] get_page_from_freelist+0x119c/0x2ce0 [ 11.083007][ T3320] ? __lock_acquire+0x166e/0x56d0 [ 11.083007][ T3320] ? __zone_watermark_ok+0x460/0x460 [ 11.083007][ T3320] ? prepare_alloc_pages+0x178/0x570 [ 11.083007][ T3320] __alloc_pages+0x1cb/0x5b0 [ 11.083007][ T3320] ? __alloc_pages_slowpath.constprop.0+0x23d0/0x23d0 [ 11.083007][ T3320] alloc_pages+0x1aa/0x270 [ 11.083007][ T3320] allocate_slab+0x25f/0x350 [ 11.083007][ T3320] ___slab_alloc+0xa91/0x1400 [ 11.083007][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.083007][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.083007][ T3320] __slab_alloc.constprop.0+0x56/0xa0 [ 11.083007][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.083007][ T3320] kmem_cache_alloc+0x379/0x430 [ 11.083007][ T3320] mas_alloc_nodes+0x429/0x810 [ 11.083007][ T3320] mas_preallocate+0x1bb/0x360 [ 11.083007][ T3320] vma_link+0xa6/0x290 [ 11.083007][ T3320] ? vma_mas_store+0x3f0/0x3f0 [ 11.083007][ T3320] insert_vm_struct+0x1e5/0x400 [ 11.083007][ T3320] ? exit_mmap+0x7b0/0x7b0 [ 11.083007][ T3320] ? kmem_cache_alloc+0x234/0x430 [ 11.083007][ T3320] alloc_bprm+0x4e1/0x900 [ 11.146529][ T3320] kernel_execve+0xaf/0x500 [ 11.148464][ T3320] call_usermodehelper_exec_async+0x2e7/0x580 [ 11.149019][ T3320] ? umh_complete+0x90/0x90 [ 11.149019][ T3320] ret_from_fork+0x1f/0x30 [ 11.149019][ T3320] [ 11.149019][ T3320] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 11.149019][ T3320] CPU: 1 PID: 3320 Comm: kworker/u4:0 Not tainted 6.1.0-rc8-next-20221207-syzkaller-dirty #0 [ 11.149019][ T3320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 11.149019][ T3320] Call Trace: [ 11.149019][ T3320] [ 11.149019][ T3320] dump_stack_lvl+0xd1/0x138 [ 11.149019][ T3320] panic+0x2cc/0x626 [ 11.149019][ T3320] ? panic_print_sys_info.part.0+0x110/0x110 [ 11.149019][ T3320] ? rcu_note_context_switch+0x913/0x1870 [ 11.149019][ T3320] check_panic_on_warn.cold+0x19/0x35 [ 11.149019][ T3320] __warn+0xf2/0x1a0 [ 11.149019][ T3320] ? rcu_note_context_switch+0x913/0x1870 [ 11.149019][ T3320] report_bug+0x1c0/0x210 [ 11.149019][ T3320] handle_bug+0x3c/0x70 [ 11.149019][ T3320] exc_invalid_op+0x18/0x50 [ 11.149019][ T3320] asm_exc_invalid_op+0x1a/0x20 [ 11.176555][ T3320] RIP: 0010:rcu_note_context_switch+0x913/0x1870 [ 11.176561][ T3320] Code: 7b 11 00 0f 85 f8 06 00 00 45 85 ff 0f 84 9b f8 ff ff 8b 05 ef 39 53 10 8d 50 01 83 f8 64 89 15 e3 39 53 10 0f 8e 83 f8 ff ff <0f> 0b e9 7c f8 ff ff 48 8d 7b 20 c6 43 11 00 48 b8 00 00 00 00 00 [ 11.184084][ T3320] RSP: 0000:ffffc9000e2bf3d0 EFLAGS: 00010002 [ 11.186302][ T3320] RAX: 0000000000000065 RBX: ffff8880b993c440 RCX: 0000000000000000 [ 11.188128][ T3320] RDX: 0000000000000066 RSI: 0000000000000004 RDI: 0000000000000001 [ 11.189513][ T3320] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8c79be43 [ 11.189513][ T3320] R10: fffffbfff18f37c8 R11: ffffffff8c79bf00 R12: ffffffff8c79be40 [ 11.189513][ T3320] R13: ffff8880b993c460 R14: ffff8880b993c451 R15: 0000000000000001 [ 11.189513][ T3320] ? lockdep_hardirqs_off+0x94/0xd0 [ 11.189513][ T3320] ? preempt_schedule_notrace+0x5f/0xe0 [ 11.189513][ T3320] __schedule+0x24c/0x5450 [ 11.189513][ T3320] ? asm_sysvec_reschedule_ipi+0x1a/0x20 [ 11.189513][ T3320] ? pvclock_clocksource_read+0xd4/0x530 [ 11.189513][ T3320] ? io_schedule_timeout+0x150/0x150 [ 11.189513][ T3320] ? preempt_schedule_notrace_thunk+0x1a/0x20 [ 11.206531][ T3320] preempt_schedule_notrace+0x5f/0xe0 [ 11.206531][ T3320] preempt_schedule_notrace_thunk+0x1a/0x20 [ 11.206531][ T3320] ? sched_clock_local+0x139/0x1d0 [ 11.206531][ T3320] sched_clock_cpu+0x20d/0x2b0 [ 11.206531][ T3320] ? save_stack+0xbb/0x1e0 [ 11.206531][ T3320] ? prepare_to_wait+0x380/0x380 [ 11.206531][ T3320] ? __alloc_pages+0x1cb/0x5b0 [ 11.206531][ T3320] ? alloc_pages+0x1aa/0x270 [ 11.206531][ T3320] ? allocate_slab+0x25f/0x350 [ 11.206531][ T3320] ? ___slab_alloc+0xa91/0x1400 [ 11.206531][ T3320] ? __slab_alloc.constprop.0+0x56/0xa0 [ 11.206531][ T3320] ? kmem_cache_alloc+0x379/0x430 [ 11.206531][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.206531][ T3320] ? mas_preallocate+0x1bb/0x360 [ 11.206531][ T3320] __set_page_owner_handle+0x2ab/0x3b0 [ 11.206531][ T3320] __set_page_owner+0x48/0x60 [ 11.206531][ T3320] get_page_from_freelist+0x119c/0x2ce0 [ 11.206531][ T3320] ? __lock_acquire+0x166e/0x56d0 [ 11.206531][ T3320] ? __zone_watermark_ok+0x460/0x460 [ 11.206531][ T3320] ? prepare_alloc_pages+0x178/0x570 [ 11.234792][ T3320] __alloc_pages+0x1cb/0x5b0 [ 11.236054][ T3320] ? __alloc_pages_slowpath.constprop.0+0x23d0/0x23d0 [ 11.236054][ T3320] alloc_pages+0x1aa/0x270 [ 11.236054][ T3320] allocate_slab+0x25f/0x350 [ 11.236054][ T3320] ___slab_alloc+0xa91/0x1400 [ 11.236054][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.236054][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.236054][ T3320] __slab_alloc.constprop.0+0x56/0xa0 [ 11.236054][ T3320] ? mas_alloc_nodes+0x429/0x810 [ 11.236054][ T3320] kmem_cache_alloc+0x379/0x430 [ 11.236054][ T3320] mas_alloc_nodes+0x429/0x810 [ 11.236054][ T3320] mas_preallocate+0x1bb/0x360 [ 11.236054][ T3320] vma_link+0xa6/0x290 [ 11.236054][ T3320] ? vma_mas_store+0x3f0/0x3f0 [ 11.236054][ T3320] insert_vm_struct+0x1e5/0x400 [ 11.236054][ T3320] ? exit_mmap+0x7b0/0x7b0 [ 11.236054][ T3320] ? kmem_cache_alloc+0x234/0x430 [ 11.236054][ T3320] alloc_bprm+0x4e1/0x900 [ 11.236054][ T3320] kernel_execve+0xaf/0x500 [ 11.236054][ T3320] call_usermodehelper_exec_async+0x2e7/0x580 [ 11.236054][ T3320] ? umh_complete+0x90/0x90 [ 11.236054][ T3320] ret_from_fork+0x1f/0x30 [ 11.236054][ T3320] [ 11.236054][ T3320] Kernel Offset: disabled [ 11.236054][ T3320] Rebooting in 86400 seconds.. syzkaller build log: go env (err=) 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/linux/gopath/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs/linux/gopath" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.17" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build1709421499=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at d88f3abb0 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=d88f3abb0873e90df9259d60d5bcd3ad796db6b8 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20221206-135530'" "-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=d88f3abb0873e90df9259d60d5bcd3ad796db6b8 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20221206-135530'" "-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=d88f3abb0873e90df9259d60d5bcd3ad796db6b8 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20221206-135530'" "-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 -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"d88f3abb0873e90df9259d60d5bcd3ad796db6b8\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=1263316d880000 Tested on: commit: 591cd615 Add linux-next specific files for 20221207 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git kernel config: https://syzkaller.appspot.com/x/.config?x=8b2d3e63e054c24f dashboard link: https://syzkaller.appspot.com/bug?extid=1eb4232fca28c0a6d1c2 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=11621467880000