./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2729784314 <...> Warning: Permanently added '10.128.1.39' (ED25519) to the list of known hosts. execve("./syz-executor2729784314", ["./syz-executor2729784314"], 0x7fff01234800 /* 10 vars */) = 0 brk(NULL) = 0x555556161000 brk(0x555556161d00) = 0x555556161d00 arch_prctl(ARCH_SET_FS, 0x555556161380) = 0 set_tid_address(0x555556161650) = 5028 set_robust_list(0x555556161660, 24) = 0 rseq(0x555556161ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2729784314", 4096) = 28 getrandom("\x07\xa7\xd9\xdb\x4a\xd2\x60\x12", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556161d00 brk(0x555556182d00) = 0x555556182d00 brk(0x555556183000) = 0x555556183000 mprotect(0x7f9cce487000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5029 attached , child_tidptr=0x555556161650) = 5029 [pid 5029] set_robust_list(0x555556161660, 24) = 0 [pid 5029] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5029] setsid() = 1 [pid 5029] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5029] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5029] unshare(CLONE_NEWNS) = 0 [pid 5029] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5029] unshare(CLONE_NEWIPC) = 0 [pid 5029] unshare(CLONE_NEWCGROUP) = 0 [pid 5029] unshare(CLONE_NEWUTS) = 0 [pid 5029] unshare(CLONE_SYSVSEM) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "16777216", 8) = 8 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "536870912", 9) = 9 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "8192", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5029] close(3) = 0 [pid 5029] getpid() = 1 [pid 5029] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<nohomeok > 0) [ 56.920130][ T108] ------------[ cut here ]------------ [ 56.925682][ T108] kernel BUG at fs/jfs/jfs_txnmgr.c:931! [ 56.934032][ T108] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 56.940111][ T108] CPU: 0 PID: 108 Comm: jfsCommit Not tainted 6.6.0-rc6-syzkaller-00334-g1acfd2bd3f0d #0 [ 56.949890][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 56.959925][ T108] RIP: 0010:txUnlock+0xc6e/0xca0 [ 56.964849][ T108] Code: 78 ea b6 07 0f 0b e8 41 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba a3 03 00 00 48 c7 c1 60 5a 42 8b e8 52 ea b6 07 <0f> 0b e8 1b 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba [ 56.984434][ T108] RSP: 0018:ffffc90002ccfce8 EFLAGS: 00010246 [ 56.990480][ T108] RAX: 0000000000000037 RBX: 0000000000000000 RCX: cc8eecb27865ec00 [ 56.998431][ T108] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 57.006380][ T108] RBP: ffff888072f8d3e0 R08: ffffffff81710cfc R09: 1ffff92000599f3c [ 57.014356][ T108] R10: dffffc0000000000 R11: fffff52000599f3d R12: ffff88802a6449d0 [ 57.022315][ T108] R13: ffff88802a7dba94 R14: ffffc90002822000 R15: dffffc0000000000 [ 57.030272][ T108] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.039202][ T108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.045761][ T108] CR2: 00007f9cce48b130 CR3: 000000000d130000 CR4: 00000000003506f0 [ 57.053712][ T108] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.061658][ T108] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.069632][ T108] Call Trace: [ 57.072894][ T108] [ 57.075803][ T108] ? __die_body+0x8b/0xe0 [ 57.080113][ T108] ? die+0xa1/0xd0 [ 57.083812][ T108] ? do_trap+0x153/0x380 [ 57.088033][ T108] ? txUnlock+0xc6e/0xca0 [ 57.092346][ T108] ? do_error_trap+0x1dc/0x2c0 [ 57.097097][ T108] ? txUnlock+0xc6e/0xca0 [ 57.101403][ T108] ? do_int3+0x50/0x50 [ 57.105452][ T108] ? report_bug+0x3e4/0x500 [ 57.109932][ T108] ? handle_invalid_op+0x34/0x40 [ 57.114849][ T108] ? txUnlock+0xc6e/0xca0 [ 57.119156][ T108] ? exc_invalid_op+0x33/0x50 [ 57.123828][ T108] ? asm_exc_invalid_op+0x1a/0x20 [ 57.128835][ T108] ? __wake_up_klogd+0xcc/0x100 [ 57.133667][ T108] ? txUnlock+0xc6e/0xca0 [ 57.137973][ T108] ? txUnlock+0xc6e/0xca0 [ 57.142279][ T108] ? lockdep_hardirqs_on+0x98/0x140 [ 57.147472][ T108] jfs_lazycommit+0x5d4/0xb70 [ 57.152127][ T108] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 57.158000][ T108] ? lockdep_hardirqs_on+0x98/0x140 [ 57.163178][ T108] ? txFreelock+0x580/0x580 [ 57.167657][ T108] ? do_task_dead+0xd0/0xd0 [ 57.172138][ T108] kthread+0x2d3/0x370 [ 57.176184][ T108] ? txFreelock+0x580/0x580 [ 57.180661][ T108] ? kthread_blkcg+0xd0/0xd0 [ 57.185226][ T108] ret_from_fork+0x48/0x80 [ 57.189619][ T108] ? kthread_blkcg+0xd0/0xd0 [ 57.194185][ T108] ret_from_fork_asm+0x11/0x20 [ 57.198943][ T108] [ 57.201936][ T108] Modules linked in: [ 57.206651][ T108] ---[ end trace 0000000000000000 ]--- [ 57.212111][ T108] RIP: 0010:txUnlock+0xc6e/0xca0 [ 57.217301][ T108] Code: 78 ea b6 07 0f 0b e8 41 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba a3 03 00 00 48 c7 c1 60 5a 42 8b e8 52 ea b6 07 <0f> 0b e8 1b 4d 7a fe 48 c7 c7 80 4d 42 8b 48 c7 c6 79 49 42 8b ba [ 57.236961][ T108] RSP: 0018:ffffc90002ccfce8 EFLAGS: 00010246 [ 57.243042][ T108] RAX: 0000000000000037 RBX: 0000000000000000 RCX: cc8eecb27865ec00 [ 57.250992][ T108] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 57.258977][ T108] RBP: ffff888072f8d3e0 R08: ffffffff81710cfc R09: 1ffff92000599f3c [ 57.266962][ T108] R10: dffffc0000000000 R11: fffff52000599f3d R12: ffff88802a6449d0 [ 57.274942][ T108] R13: ffff88802a7dba94 R14: ffffc90002822000 R15: dffffc0000000000 [ 57.282923][ T108] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 57.291830][ T108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.298436][ T108] CR2: 00007ff5c7d95ed8 CR3: 000000000d130000 CR4: 00000000003506e0 [ 57.306424][ T108] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.314508][ T108] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.322580][ T108] Kernel panic - not syncing: Fatal exception [ 57.328807][ T108] Kernel Offset: disabled [ 57.333109][ T108] Rebooting in 86400 seconds..