./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3790542904 <...> Warning: Permanently added '10.128.1.83' (ECDSA) to the list of known hosts. execve("./syz-executor3790542904", ["./syz-executor3790542904"], 0x7fff7c1327b0 /* 10 vars */) = 0 brk(NULL) = 0x5555559e4000 brk(0x5555559e4c40) = 0x5555559e4c40 arch_prctl(ARCH_SET_FS, 0x5555559e4300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3790542904", 4096) = 28 brk(0x555555a05c40) = 0x555555a05c40 brk(0x555555a06000) = 0x555555a06000 mprotect(0x7effdeb8f000, 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 4998 attached , child_tidptr=0x5555559e45d0) = 4998 [pid 4998] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4998] setsid() = 1 [pid 4998] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4998] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4998] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4998] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4998] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4998] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4998] unshare(CLONE_NEWNS) = 0 [pid 4998] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4998] unshare(CLONE_NEWIPC) = 0 [pid 4998] unshare(CLONE_NEWCGROUP) = 0 [pid 4998] unshare(CLONE_NEWUTS) = 0 [pid 4998] unshare(CLONE_SYSVSEM) = 0 [pid 4998] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "16777216", 8) = 8 [pid 4998] close(3) = 0 [pid 4998] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "536870912", 9) = 9 [pid 4998] close(3) = 0 [pid 4998] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "1024", 4) = 4 [pid 4998] close(3) = 0 [pid 4998] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "8192", 4) = 4 [pid 4998] close(3) = 0 [pid 4998] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "1024", 4) = 4 [pid 4998] close(3) = 0 [pid 4998] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "1024", 4) = 4 [pid 4998] close(3) = 0 [pid 4998] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4998] close(3) = 0 [pid 4998] getpid() = 1 [pid 4998] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<nohomeok > 0) [ 70.486029][ T107] ------------[ cut here ]------------ [ 70.491517][ T107] kernel BUG at fs/jfs/jfs_txnmgr.c:926! [ 70.498382][ T107] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 70.504471][ T107] CPU: 1 PID: 107 Comm: jfsCommit Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 [ 70.514276][ T107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 70.524337][ T107] RIP: 0010:txUnlock+0xc6e/0xca0 [ 70.529289][ T107] Code: f8 d6 a1 07 0f 0b e8 71 c8 7f fe 48 c7 c7 00 81 21 8b 48 c7 c6 39 7d 21 8b ba 9e 03 00 00 48 c7 c1 e0 8d 21 8b e8 d2 d6 a1 07 <0f> 0b e8 4b c8 7f fe 48 c7 c7 00 81 21 8b 48 c7 c6 39 7d 21 8b ba [ 70.548977][ T107] RSP: 0018:ffffc90002d9fd08 EFLAGS: 00010246 [ 70.555039][ T107] RAX: 0000000000000037 RBX: 0000000000000000 RCX: f767815a5a656300 [ 70.563007][ T107] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 70.570969][ T107] RBP: ffff888075e5a3e0 R08: ffffffff816f00ac R09: fffff520005b3f55 [ 70.578933][ T107] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880286729d0 [ 70.586911][ T107] R13: ffff8880240d7494 R14: ffffc900028f2000 R15: dffffc0000000000 [ 70.594891][ T107] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 70.603824][ T107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.610489][ T107] CR2: 00007ff712b2335c CR3: 000000002cadb000 CR4: 00000000003506e0 [ 70.618458][ T107] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.626439][ T107] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.634409][ T107] Call Trace: [ 70.637681][ T107] [ 70.640607][ T107] ? __die_body+0x5e/0xa0 [ 70.644938][ T107] ? die+0x87/0xb0 [ 70.648654][ T107] ? do_trap+0x11e/0x350 [ 70.652895][ T107] ? txUnlock+0xc6e/0xca0 [ 70.657228][ T107] ? txUnlock+0xc6e/0xca0 [ 70.661559][ T107] ? do_error_trap+0x141/0x1f0 [ 70.666325][ T107] ? txUnlock+0xc6e/0xca0 [ 70.670662][ T107] ? do_int3+0x30/0x30 [ 70.674729][ T107] ? report_bug+0x3e4/0x500 [ 70.679234][ T107] ? handle_invalid_op+0x2c/0x40 [ 70.684173][ T107] ? txUnlock+0xc6e/0xca0 [ 70.688511][ T107] ? exc_invalid_op+0x33/0x50 [ 70.693185][ T107] ? asm_exc_invalid_op+0x1a/0x20 [ 70.698300][ T107] ? __wake_up_klogd+0xcc/0x100 [ 70.703228][ T107] ? txUnlock+0xc6e/0xca0 [ 70.707557][ T107] ? txUnlock+0xc6e/0xca0 [ 70.711888][ T107] ? lockdep_hardirqs_on+0x98/0x140 [ 70.717089][ T107] jfs_lazycommit+0x5d4/0xb70 [ 70.721861][ T107] ? txFreelock+0x580/0x580 [ 70.726373][ T107] ? do_task_dead+0xd0/0xd0 [ 70.730883][ T107] ? _raw_spin_unlock+0x40/0x40 [ 70.735732][ T107] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 70.741713][ T107] ? __kthread_parkme+0x164/0x1c0 [ 70.746744][ T107] kthread+0x2b8/0x350 [ 70.750813][ T107] ? txFreelock+0x580/0x580 [ 70.755320][ T107] ? kthread_blkcg+0xd0/0xd0 [ 70.759921][ T107] ret_from_fork+0x1f/0x30 [ 70.764349][ T107] [ 70.767363][ T107] Modules linked in: [ 70.773736][ T107] ---[ end trace 0000000000000000 ]--- [ 70.779218][ T107] RIP: 0010:txUnlock+0xc6e/0xca0 [ 70.784261][ T107] Code: f8 d6 a1 07 0f 0b e8 71 c8 7f fe 48 c7 c7 00 81 21 8b 48 c7 c6 39 7d 21 8b ba 9e 03 00 00 48 c7 c1 e0 8d 21 8b e8 d2 d6 a1 07 <0f> 0b e8 4b c8 7f fe 48 c7 c7 00 81 21 8b 48 c7 c6 39 7d 21 8b ba [ 70.805518][ T107] RSP: 0018:ffffc90002d9fd08 EFLAGS: 00010246 [ 70.811598][ T107] RAX: 0000000000000037 RBX: 0000000000000000 RCX: f767815a5a656300 [ 70.819709][ T107] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 70.827726][ T107] RBP: ffff888075e5a3e0 R08: ffffffff816f00ac R09: fffff520005b3f55 [ 70.835731][ T107] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880286729d0 [ 70.844356][ T107] R13: ffff8880240d7494 R14: ffffc900028f2000 R15: dffffc0000000000 [ 70.852327][ T107] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 70.861293][ T107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.867922][ T107] CR2: 000055b2cdd7bff0 CR3: 000000000cd30000 CR4: 00000000003506f0 [ 70.875934][ T107] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.884077][ T107] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.892142][ T107] Kernel panic - not syncing: Fatal exception [ 70.898274][ T107] Kernel Offset: disabled [ 70.902601][ T107] Rebooting in 86400 seconds..