./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1466089666 <...> Warning: Permanently added '10.128.1.24' (ED25519) to the list of known hosts. execve("./syz-executor1466089666", ["./syz-executor1466089666"], 0x7ffc369297d0 /* 10 vars */) = 0 brk(NULL) = 0x55555643a000 brk(0x55555643ad00) = 0x55555643ad00 arch_prctl(ARCH_SET_FS, 0x55555643a380) = 0 set_tid_address(0x55555643a650) = 5823 set_robust_list(0x55555643a660, 24) = 0 rseq(0x55555643aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1466089666", 4096) = 28 getrandom("\x06\xf8\x5d\x72\x95\x8b\x7f\x98", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555643ad00 brk(0x55555645bd00) = 0x55555645bd00 brk(0x55555645c000) = 0x55555645c000 mprotect(0x7f4a434f7000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555643a650) = 5824 ./strace-static-x86_64: Process 5824 attached [pid 5824] set_robust_list(0x55555643a660, 24) = 0 [pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5824] getppid() = 0 [pid 5824] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5824] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5824] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5824] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5824] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5824] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5824] unshare(CLONE_NEWNS) = 0 [pid 5824] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5824] unshare(CLONE_NEWIPC) = 0 [pid 5824] unshare(CLONE_NEWCGROUP) = 0 [pid 5824] unshare(CLONE_NEWUTS) = 0 [pid 5824] unshare(CLONE_SYSVSEM) = 0 [pid 5824] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "16777216", 8) = 8 [pid 5824] close(3) = 0 [pid 5824] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "536870912", 9) = 9 [pid 5824] close(3) = 0 [pid 5824] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "1024", 4) = 4 [pid 5824] close(3) = 0 [pid 5824] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "8192", 4) = 4 [pid 5824] close(3) = 0 [pid 5824] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "1024", 4) = 4 [pid 5824] close(3) = 0 [pid 5824] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "1024", 4) = 4 [pid 5824] close(3) = 0 [pid 5824] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5824] close(3) = 0 [pid 5824] getpid() = 1 [pid 5824] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<nohomeok > 0) [ 75.304284][ T117] ------------[ cut here ]------------ [ 75.309757][ T117] kernel BUG at fs/jfs/jfs_txnmgr.c:931! [ 75.315530][ T117] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 75.321790][ T117] CPU: 0 UID: 0 PID: 117 Comm: jfsCommit Not tainted 6.15.0-rc7-syzkaller-00175-g0f8c0258bf04 #0 PREEMPT(full) [ 75.333594][ T117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.343633][ T117] RIP: 0010:txUnlock+0xdaf/0xdf0 [ 75.348554][ T117] Code: eb fd 90 0f 0b e8 21 38 84 fe 48 c7 c7 c0 ae a3 8b 48 c7 c6 b9 aa a3 8b ba a3 03 00 00 48 c7 c1 c0 bb a3 8b e8 12 d4 eb fd 90 <0f> 0b e8 fa 37 84 fe 48 c7 c7 c0 ae a3 8b 48 c7 c6 b9 aa a3 8b ba [ 75.368143][ T117] RSP: 0018:ffffc90002dcfc68 EFLAGS: 00010246 [ 75.374188][ T117] RAX: 0000000000000037 RBX: 0000000000001000 RCX: 68a9c7652c997200 [ 75.382138][ T117] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 75.390084][ T117] RBP: ffffc90002942120 R08: ffffc90002dcf947 R09: 1ffff920005b9f28 [ 75.398040][ T117] R10: dffffc0000000000 R11: fffff520005b9f29 R12: dffffc0000000000 [ 75.405995][ T117] R13: 1ffff1100473c34b R14: ffff8880239e1a58 R15: 0000000000000000 [ 75.413952][ T117] FS: 0000000000000000(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 75.422863][ T117] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.429428][ T117] CR2: 00007f4a434c55b8 CR3: 000000006552e000 CR4: 00000000003526f0 [ 75.437385][ T117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.445337][ T117] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.453294][ T117] Call Trace: [ 75.456558][ T117] [ 75.459476][ T117] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.464678][ T117] jfs_lazycommit+0x584/0xa90 [ 75.469346][ T117] ? __pfx_jfs_lazycommit+0x10/0x10 [ 75.474526][ T117] ? __pfx_default_wake_function+0x10/0x10 [ 75.480315][ T117] ? __kthread_parkme+0x7b/0x200 [ 75.485233][ T117] ? __kthread_parkme+0x1a1/0x200 [ 75.490242][ T117] kthread+0x711/0x8a0 [ 75.494296][ T117] ? __pfx_jfs_lazycommit+0x10/0x10 [ 75.499477][ T117] ? __pfx_kthread+0x10/0x10 [ 75.504050][ T117] ? __pfx_kthread+0x10/0x10 [ 75.508624][ T117] ? _raw_spin_unlock_irq+0x23/0x50 [ 75.513816][ T117] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.519000][ T117] ? __pfx_kthread+0x10/0x10 [ 75.523571][ T117] ret_from_fork+0x4b/0x80 [ 75.527970][ T117] ? __pfx_kthread+0x10/0x10 [ 75.532542][ T117] ret_from_fork_asm+0x1a/0x30 [ 75.537301][ T117] [ 75.540303][ T117] Modules linked in: [ 75.544482][ T117] ---[ end trace 0000000000000000 ]--- [ 75.550436][ T117] RIP: 0010:txUnlock+0xdaf/0xdf0 [ 75.555795][ T117] Code: eb fd 90 0f 0b e8 21 38 84 fe 48 c7 c7 c0 ae a3 8b 48 c7 c6 b9 aa a3 8b ba a3 03 00 00 48 c7 c1 c0 bb a3 8b e8 12 d4 eb fd 90 <0f> 0b e8 fa 37 84 fe 48 c7 c7 c0 ae a3 8b 48 c7 c6 b9 aa a3 8b ba [ 75.575661][ T117] RSP: 0018:ffffc90002dcfc68 EFLAGS: 00010246 [ 75.581771][ T117] RAX: 0000000000000037 RBX: 0000000000001000 RCX: 68a9c7652c997200 [ 75.589954][ T117] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 75.597994][ T117] RBP: ffffc90002942120 R08: ffffc90002dcf947 R09: 1ffff920005b9f28 [ 75.606021][ T117] R10: dffffc0000000000 R11: fffff520005b9f29 R12: dffffc0000000000 [ 75.614041][ T117] R13: 1ffff1100473c34b R14: ffff8880239e1a58 R15: 0000000000000000 [ 75.622016][ T117] FS: 0000000000000000(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 75.631043][ T117] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.637646][ T117] CR2: 00007f4a434c55b8 CR3: 0000000033240000 CR4: 00000000003526f0 [ 75.645638][ T117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.653654][ T117] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.661629][ T117] Kernel panic - not syncing: Fatal exception [ 75.667917][ T117] Kernel Offset: disabled [ 75.672227][ T117] Rebooting in 86400 seconds..