./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2853924535 <...> Warning: Permanently added '10.128.0.141' (ED25519) to the list of known hosts. execve("./syz-executor2853924535", ["./syz-executor2853924535"], 0x7ffd61c3ad40 /* 10 vars */) = 0 brk(NULL) = 0x555557464000 brk(0x555557464d00) = 0x555557464d00 arch_prctl(ARCH_SET_FS, 0x555557464380) = 0 set_tid_address(0x555557464650) = 5038 set_robust_list(0x555557464660, 24) = 0 rseq(0x555557464ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2853924535", 4096) = 28 getrandom("\xa9\x55\xe3\xfa\x89\xf5\x48\x35", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557464d00 brk(0x555557485d00) = 0x555557485d00 brk(0x555557486000) = 0x555557486000 mprotect(0x7fe4b731a000, 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=0x555557464650) = 5039 ./strace-static-x86_64: Process 5039 attached [pid 5039] set_robust_list(0x555557464660, 24) = 0 [pid 5039] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5039] setsid() = 1 [pid 5039] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5039] unshare(CLONE_NEWNS) = 0 [pid 5039] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5039] unshare(CLONE_NEWIPC) = 0 [pid 5039] unshare(CLONE_NEWCGROUP) = 0 [pid 5039] unshare(CLONE_NEWUTS) = 0 [pid 5039] unshare(CLONE_SYSVSEM) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "16777216", 8) = 8 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "536870912", 9) = 9 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "8192", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5039] close(3) = 0 [pid 5039] getpid() = 1 [pid 5039] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<nohomeok > 0) [ 69.804164][ T109] ------------[ cut here ]------------ [ 69.809694][ T109] kernel BUG at fs/jfs/jfs_txnmgr.c:931! [ 69.815354][ T109] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 69.821422][ T109] CPU: 0 PID: 109 Comm: jfsCommit Not tainted 6.5.0-rc5-next-20230809-syzkaller #0 [ 69.830689][ T109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 69.840734][ T109] RIP: 0010:txUnlock+0xcb4/0xd10 [ 69.845667][ T109] Code: fe e9 89 f6 ff ff e8 6b 77 8d fe 48 c7 c1 80 bd aa 8a ba a3 03 00 00 48 c7 c6 00 bd aa 8a 48 c7 c7 40 bd aa 8a e8 3c ab 70 fe <0f> 0b e8 25 b4 e2 fe e9 e0 f5 ff ff e8 3b 77 8d fe 48 c7 c1 c0 bc [ 69.865262][ T109] RSP: 0018:ffffc90002c4fd50 EFLAGS: 00010286 [ 69.871316][ T109] RAX: 0000000000000037 RBX: ffffc900027c2120 RCX: 0000000000000000 [ 69.879274][ T109] RDX: 0000000000000000 RSI: ffffffff816b97f2 RDI: 0000000000000005 [ 69.887232][ T109] RBP: ffff888073a65d90 R08: 0000000000000005 R09: 0000000000000000 [ 69.895185][ T109] R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000000 [ 69.903140][ T109] R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 [ 69.911098][ T109] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 69.920018][ T109] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.926589][ T109] CR2: 00007f83ad395ed8 CR3: 000000002902a000 CR4: 00000000003506f0 [ 69.934573][ T109] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.942620][ T109] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.950579][ T109] Call Trace: [ 69.953855][ T109] [ 69.956771][ T109] ? show_regs+0x8f/0xa0 [ 69.961004][ T109] ? die+0x36/0xa0 [ 69.964727][ T109] ? do_trap+0x22b/0x420 [ 69.968977][ T109] ? txUnlock+0xcb4/0xd10 [ 69.974265][ T109] ? txUnlock+0xcb4/0xd10 [ 69.978587][ T109] ? do_error_trap+0xf4/0x230 [ 69.983255][ T109] ? txUnlock+0xcb4/0xd10 [ 69.987577][ T109] ? handle_invalid_op+0x34/0x40 [ 69.992507][ T109] ? txUnlock+0xcb4/0xd10 [ 69.996831][ T109] ? exc_invalid_op+0x2d/0x40 [ 70.001494][ T109] ? asm_exc_invalid_op+0x1a/0x20 [ 70.006519][ T109] ? vprintk+0x82/0x90 [ 70.010590][ T109] ? txUnlock+0xcb4/0xd10 [ 70.014914][ T109] jfs_lazycommit+0x726/0xb20 [ 70.019592][ T109] ? txCommit+0x4fc0/0x4fc0 [ 70.024141][ T109] ? wake_up_state+0x10/0x10 [ 70.028721][ T109] ? __kthread_parkme+0x152/0x220 [ 70.033731][ T109] ? txCommit+0x4fc0/0x4fc0 [ 70.038230][ T109] kthread+0x33a/0x430 [ 70.042286][ T109] ? kthread_complete_and_exit+0x40/0x40 [ 70.047905][ T109] ret_from_fork+0x45/0x80 [ 70.052317][ T109] ? kthread_complete_and_exit+0x40/0x40 [ 70.057938][ T109] ret_from_fork_asm+0x11/0x20 [ 70.062704][ T109] [ 70.065706][ T109] Modules linked in: [ 70.069738][ T109] ---[ end trace 0000000000000000 ]--- [ 70.075211][ T109] RIP: 0010:txUnlock+0xcb4/0xd10 [ 70.080231][ T109] Code: fe e9 89 f6 ff ff e8 6b 77 8d fe 48 c7 c1 80 bd aa 8a ba a3 03 00 00 48 c7 c6 00 bd aa 8a 48 c7 c7 40 bd aa 8a e8 3c ab 70 fe <0f> 0b e8 25 b4 e2 fe e9 e0 f5 ff ff e8 3b 77 8d fe 48 c7 c1 c0 bc [ 70.100394][ T109] RSP: 0018:ffffc90002c4fd50 EFLAGS: 00010286 [ 70.106530][ T109] RAX: 0000000000000037 RBX: ffffc900027c2120 RCX: 0000000000000000 [ 70.114529][ T109] RDX: 0000000000000000 RSI: ffffffff816b97f2 RDI: 0000000000000005 [ 70.122567][ T109] RBP: ffff888073a65d90 R08: 0000000000000005 R09: 0000000000000000 [ 70.130589][ T109] R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000000 [ 70.138608][ T109] R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 [ 70.146605][ T109] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 70.155523][ T109] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.162147][ T109] CR2: 00007f83ad395ed8 CR3: 000000002902a000 CR4: 00000000003506f0 [ 70.170186][ T109] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.178207][ T109] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.186188][ T109] Kernel panic - not syncing: Fatal exception [ 70.192442][ T109] Kernel Offset: disabled [ 70.196755][ T109] Rebooting in 86400 seconds..