./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3005261693 <...> Warning: Permanently added '10.128.10.9' (ECDSA) to the list of known hosts. execve("./syz-executor3005261693", ["./syz-executor3005261693"], 0x7fff2e6a59f0 /* 10 vars */) = 0 brk(NULL) = 0x5555563dc000 brk(0x5555563dcc40) = 0x5555563dcc40 arch_prctl(ARCH_SET_FS, 0x5555563dc300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3005261693", 4096) = 28 brk(0x5555563fdc40) = 0x5555563fdc40 brk(0x5555563fe000) = 0x5555563fe000 mprotect(0x7fa22af1e000, 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, child_tidptr=0x5555563dc5d0) = 4994 ./strace-static-x86_64: Process 4994 attached [pid 4994] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4994] setsid() = 1 [pid 4994] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4994] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4994] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4994] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4994] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4994] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4994] unshare(CLONE_NEWNS) = 0 [pid 4994] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4994] unshare(CLONE_NEWIPC) = 0 [pid 4994] unshare(CLONE_NEWCGROUP) = 0 [pid 4994] unshare(CLONE_NEWUTS) = 0 [pid 4994] unshare(CLONE_SYSVSEM) = 0 [pid 4994] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4994] write(3, "16777216", 8) = 8 [pid 4994] close(3) = 0 [pid 4994] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4994] write(3, "536870912", 9) = 9 [pid 4994] close(3) = 0 [pid 4994] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4994] write(3, "1024", 4) = 4 [pid 4994] close(3) = 0 [pid 4994] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4994] write(3, "8192", 4) = 4 [pid 4994] close(3) = 0 [pid 4994] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4994] write(3, "1024", 4) = 4 [pid 4994] close(3) = 0 [pid 4994] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4994] write(3, "1024", 4) = 4 [pid 4994] close(3) = 0 [pid 4994] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4994] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4994] close(3) = 0 [pid 4994] getpid() = 1 [pid 4994] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<nohomeok > 0) [ 72.910269][ T107] ------------[ cut here ]------------ [ 72.916093][ T107] kernel BUG at fs/jfs/jfs_txnmgr.c:926! [ 72.928188][ T107] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 72.934302][ T107] CPU: 0 PID: 107 Comm: jfsCommit Not tainted 6.4.0-rc4-syzkaller-00268-g51f269a6ecc7 #0 [ 72.944110][ T107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 72.954168][ T107] RIP: 0010:txUnlock+0xc6e/0xca0 [ 72.959142][ T107] Code: d8 8f a1 07 0f 0b e8 e1 e0 7f fe 48 c7 c7 00 7e 21 8b 48 c7 c6 39 7a 21 8b ba 9e 03 00 00 48 c7 c1 e0 8a 21 8b e8 b2 8f a1 07 <0f> 0b e8 bb e0 7f fe 48 c7 c7 00 7e 21 8b 48 c7 c6 39 7a 21 8b ba [ 72.978749][ T107] RSP: 0018:ffffc900015e7d08 EFLAGS: 00010246 [ 72.984822][ T107] RAX: 0000000000000037 RBX: 0000000000000000 RCX: d46a055f60749c00 [ 72.992794][ T107] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 73.000773][ T107] RBP: ffff88807ae3dd90 R08: ffffffff816f004c R09: fffff520002bcf55 [ 73.008749][ T107] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802cfb49d0 [ 73.016744][ T107] R13: ffff88801e990094 R14: ffffc90002892000 R15: dffffc0000000000 [ 73.024737][ T107] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 73.033684][ T107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.040275][ T107] CR2: 000055f5d5d0fff0 CR3: 000000002a611000 CR4: 00000000003506f0 [ 73.048516][ T107] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.056576][ T107] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.064554][ T107] Call Trace: [ 73.067834][ T107] [ 73.070766][ T107] ? __die_body+0x5e/0xa0 [ 73.075114][ T107] ? die+0x87/0xb0 [ 73.078841][ T107] ? do_trap+0x11e/0x350 [ 73.083107][ T107] ? txUnlock+0xc6e/0xca0 [ 73.087447][ T107] ? txUnlock+0xc6e/0xca0 [ 73.091789][ T107] ? do_error_trap+0x141/0x1f0 [ 73.096566][ T107] ? txUnlock+0xc6e/0xca0 [ 73.100909][ T107] ? do_int3+0x30/0x30 [ 73.104986][ T107] ? report_bug+0x3e4/0x500 [ 73.109500][ T107] ? handle_invalid_op+0x2c/0x40 [ 73.114468][ T107] ? txUnlock+0xc6e/0xca0 [ 73.118828][ T107] ? exc_invalid_op+0x33/0x50 [ 73.123607][ T107] ? asm_exc_invalid_op+0x1a/0x20 [ 73.128646][ T107] ? __wake_up_klogd+0xcc/0x100 [ 73.133511][ T107] ? txUnlock+0xc6e/0xca0 [ 73.137851][ T107] ? txUnlock+0xc6e/0xca0 [ 73.142227][ T107] ? lockdep_hardirqs_on+0x98/0x140 [ 73.147435][ T107] jfs_lazycommit+0x5d4/0xb70 [ 73.152144][ T107] ? txFreelock+0x580/0x580 [ 73.156690][ T107] ? do_task_dead+0xd0/0xd0 [ 73.161221][ T107] ? _raw_spin_unlock+0x40/0x40 [ 73.166086][ T107] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 73.172091][ T107] ? __kthread_parkme+0x164/0x1c0 [ 73.177223][ T107] kthread+0x2b8/0x350 [ 73.181305][ T107] ? txFreelock+0x580/0x580 [ 73.185820][ T107] ? kthread_blkcg+0xd0/0xd0 [ 73.190420][ T107] ret_from_fork+0x1f/0x30 [ 73.194863][ T107] [ 73.197880][ T107] Modules linked in: [ 73.202195][ T107] ---[ end trace 0000000000000000 ]--- [ 73.207823][ T107] RIP: 0010:txUnlock+0xc6e/0xca0 [ 73.212896][ T107] Code: d8 8f a1 07 0f 0b e8 e1 e0 7f fe 48 c7 c7 00 7e 21 8b 48 c7 c6 39 7a 21 8b ba 9e 03 00 00 48 c7 c1 e0 8a 21 8b e8 b2 8f a1 07 <0f> 0b e8 bb e0 7f fe 48 c7 c7 00 7e 21 8b 48 c7 c6 39 7a 21 8b ba [ 73.232696][ T107] RSP: 0018:ffffc900015e7d08 EFLAGS: 00010246 [ 73.238851][ T107] RAX: 0000000000000037 RBX: 0000000000000000 RCX: d46a055f60749c00 [ 73.246983][ T107] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 73.254984][ T107] RBP: ffff88807ae3dd90 R08: ffffffff816f004c R09: fffff520002bcf55 [ 73.263028][ T107] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802cfb49d0 [ 73.271135][ T107] R13: ffff88801e990094 R14: ffffc90002892000 R15: dffffc0000000000 [ 73.279157][ T107] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 73.289589][ T107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.296231][ T107] CR2: 000055f5d5d0bbc8 CR3: 000000002a623000 CR4: 00000000003506e0 [ 73.304306][ T107] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.312319][ T107] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.320474][ T107] Kernel panic - not syncing: Fatal exception [ 73.326822][ T107] Kernel Offset: disabled [ 73.331166][ T107] Rebooting in 86400 seconds..