./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2538940509 <...> Warning: Permanently added '10.128.1.15' (ED25519) to the list of known hosts. execve("./syz-executor2538940509", ["./syz-executor2538940509"], 0x7ffe50713800 /* 10 vars */) = 0 brk(NULL) = 0x55557acee000 brk(0x55557aceed00) = 0x55557aceed00 arch_prctl(ARCH_SET_FS, 0x55557acee380) = 0 set_tid_address(0x55557acee650) = 5822 set_robust_list(0x55557acee660, 24) = 0 rseq(0x55557aceeca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2538940509", 4096) = 28 getrandom("\x19\x94\x7f\x6d\x7f\x3c\xfb\xba", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557aceed00 brk(0x55557ad0fd00) = 0x55557ad0fd00 brk(0x55557ad10000) = 0x55557ad10000 mprotect(0x7fd9d8755000, 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=0x55557acee650) = 5823 ./strace-static-x86_64: Process 5823 attached [pid 5823] set_robust_list(0x55557acee660, 24) = 0 [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5823] getppid() = 0 [pid 5823] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5823] unshare(CLONE_NEWNS) = 0 [pid 5823] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5823] unshare(CLONE_NEWIPC) = 0 [pid 5823] unshare(CLONE_NEWCGROUP) = 0 [pid 5823] unshare(CLONE_NEWUTS) = 0 [pid 5823] unshare(CLONE_SYSVSEM) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "16777216", 8) = 8 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "536870912", 9) = 9 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "8192", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5823] close(3) = 0 [pid 5823] getpid() = 1 [pid 5823] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<nohomeok > 0) [ 91.562458][ T117] ------------[ cut here ]------------ [ 91.568000][ T117] kernel BUG at fs/jfs/jfs_txnmgr.c:931! [ 91.573755][ T117] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 91.580042][ T117] CPU: 0 UID: 0 PID: 117 Comm: jfsCommit Not tainted 6.15.0-rc7-syzkaller-00175-g0f8c0258bf04 #0 PREEMPT(full) [ 91.591864][ T117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 91.601936][ T117] RIP: 0010:txUnlock+0xdaf/0xdf0 [ 91.606887][ 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 [ 91.626811][ T117] RSP: 0018:ffffc90002dbfc68 EFLAGS: 00010246 [ 91.632913][ T117] RAX: 0000000000000037 RBX: 0000000000001000 RCX: a9bf070286758d00 [ 91.640895][ T117] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 91.648873][ T117] RBP: ffffc90002932120 R08: ffffc90002dbf947 R09: 1ffff920005b7f28 [ 91.657552][ T117] R10: dffffc0000000000 R11: fffff520005b7f29 R12: dffffc0000000000 [ 91.665540][ T117] R13: 1ffff1100f12830d R14: ffff888078941868 R15: 0000000000000000 [ 91.673611][ T117] FS: 0000000000000000(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 91.682543][ T117] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.689126][ T117] CR2: 00007fd9d87235b8 CR3: 000000007e990000 CR4: 00000000003526f0 [ 91.697110][ T117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.705079][ T117] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.713047][ T117] Call Trace: [ 91.716325][ T117] [ 91.719272][ T117] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.724492][ T117] jfs_lazycommit+0x584/0xa90 [ 91.729197][ T117] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.734405][ T117] ? __pfx_default_wake_function+0x10/0x10 [ 91.740217][ T117] ? __kthread_parkme+0x7b/0x200 [ 91.745170][ T117] ? __kthread_parkme+0x1a1/0x200 [ 91.750208][ T117] kthread+0x711/0x8a0 [ 91.754277][ T117] ? __pfx_jfs_lazycommit+0x10/0x10 [ 91.759484][ T117] ? __pfx_kthread+0x10/0x10 [ 91.764075][ T117] ? __pfx_kthread+0x10/0x10 [ 91.768664][ T117] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.773867][ T117] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.779072][ T117] ? __pfx_kthread+0x10/0x10 [ 91.783669][ T117] ret_from_fork+0x4b/0x80 [ 91.788084][ T117] ? __pfx_kthread+0x10/0x10 [ 91.792677][ T117] ret_from_fork_asm+0x1a/0x30 [ 91.797464][ T117] [ 91.800479][ T117] Modules linked in: [ 91.804533][ T117] ---[ end trace 0000000000000000 ]--- [ 91.810090][ T117] RIP: 0010:txUnlock+0xdaf/0xdf0 [ 91.815054][ 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 [ 91.835257][ T117] RSP: 0018:ffffc90002dbfc68 EFLAGS: 00010246 [ 91.841689][ T117] RAX: 0000000000000037 RBX: 0000000000001000 RCX: a9bf070286758d00 [ 91.849843][ T117] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 91.857888][ T117] RBP: ffffc90002932120 R08: ffffc90002dbf947 R09: 1ffff920005b7f28 [ 91.865897][ T117] R10: dffffc0000000000 R11: fffff520005b7f29 R12: dffffc0000000000 [ 91.874052][ T117] R13: 1ffff1100f12830d R14: ffff888078941868 R15: 0000000000000000 [ 91.882079][ T117] FS: 0000000000000000(0000) GS:ffff8881261f6000(0000) knlGS:0000000000000000 [ 91.891567][ T117] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.898221][ T117] CR2: 0000563705bbe190 CR3: 0000000032382000 CR4: 00000000003526f0 [ 91.906244][ T117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.914307][ T117] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.922418][ T117] Kernel panic - not syncing: Fatal exception [ 91.928725][ T117] Kernel Offset: disabled [ 91.933048][ T117] Rebooting in 86400 seconds..