./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2387839241 <...> DUID 00:04:b0:cd:33:f9:4f:8a:55:45:4d:7b:3b:ee:3a:71:f0:8b forked to background, child pid 4714 [ 34.895970][ T4715] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.911297][ T4715] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. execve("./syz-executor2387839241", ["./syz-executor2387839241"], 0x7ffe446ac7d0 /* 10 vars */) = 0 brk(NULL) = 0x555555998000 brk(0x555555998d00) = 0x555555998d00 arch_prctl(ARCH_SET_FS, 0x555555998380) = 0 set_tid_address(0x555555998650) = 5046 set_robust_list(0x555555998660, 24) = 0 rseq(0x555555998ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2387839241", 4096) = 28 getrandom("\xe1\xa3\xff\x53\x2f\x92\xfa\x3b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555998d00 brk(0x5555559b9d00) = 0x5555559b9d00 brk(0x5555559ba000) = 0x5555559ba000 mprotect(0x7ff43409c000, 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 5047 attached , child_tidptr=0x555555998650) = 5047 [pid 5047] set_robust_list(0x555555998660, 24) = 0 [pid 5047] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5047] setsid() = 1 [pid 5047] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5047] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5047] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5047] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5047] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5047] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5047] unshare(CLONE_NEWNS) = 0 [pid 5047] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5047] unshare(CLONE_NEWIPC) = 0 [pid 5047] unshare(CLONE_NEWCGROUP) = 0 [pid 5047] unshare(CLONE_NEWUTS) = 0 [pid 5047] unshare(CLONE_SYSVSEM) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "16777216", 8) = 8 [pid 5047] close(3) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "536870912", 9) = 9 [pid 5047] close(3) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "1024", 4) = 4 [pid 5047] close(3) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "8192", 4) = 4 [pid 5047] close(3) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "1024", 4) = 4 [pid 5047] close(3) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "1024", 4) = 4 [pid 5047] close(3) = 0 [pid 5047] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5047] close(3) = 0 [pid 5047] getpid() = 1 [pid 5047] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 61.072856][ T109] dump_stack_lvl+0x1e7/0x2d0 [ 61.077543][ T109] ? tcp_gro_dev_warn+0x260/0x260 [ 61.082559][ T109] ? panic+0x850/0x850 [ 61.086619][ T109] ? lock_metapage+0x2f9/0x370 [ 61.091527][ T109] __ubsan_handle_out_of_bounds+0x11c/0x150 [ 61.097479][ T109] dbJoin+0x2e9/0x310 [ 61.101567][ T109] dbFreeBits+0x4ef/0xdb0 [ 61.105934][ T109] dbFree+0x35b/0x670 [ 61.109916][ T109] txFreeMap+0x798/0xd50 [ 61.114167][ T109] txUpdateMap+0x342/0x9e0 [ 61.119038][ T109] ? txCommit+0x6a20/0x6a20 [ 61.123802][ T109] jfs_lazycommit+0x47f/0xb70 [ 61.129868][ T109] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 61.135942][ T109] ? lockdep_hardirqs_on+0x98/0x140 [ 61.141420][ T109] ? txFreelock+0x580/0x580 [ 61.145922][ T109] ? do_task_dead+0xd0/0xd0 [ 61.151394][ T109] kthread+0x2d3/0x370 [ 61.155476][ T109] ? txFreelock+0x580/0x580 [ 61.160017][ T109] ? kthread_blkcg+0xd0/0xd0 [ 61.164611][ T109] ret_from_fork+0x48/0x80 [ 61.169042][ T109] ? kthread_blkcg+0xd0/0xd0 [ 61.173622][ T109] ret_from_fork_asm+0x11/0x20 [ 61.178382][ T109] [ 61.182577][ T109] ---[ end trace ]--- [ 61.186654][ T109] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 61.193858][ T109] CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.8.0-rc2-syzkaller-00043-g2a6526c4f389 #0 [ 61.203672][ T109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 61.213724][ T109] Call Trace: [ 61.216997][ T109] [ 61.219923][ T109] dump_stack_lvl+0x1e7/0x2d0 [ 61.224690][ T109] ? tcp_gro_dev_warn+0x260/0x260 [ 61.229710][ T109] ? panic+0x850/0x850 [ 61.233768][ T109] ? vprintk_emit+0x607/0x720 [ 61.238443][ T109] ? vscnprintf+0x5d/0x80 [ 61.242783][ T109] panic+0x349/0x850 [ 61.246688][ T109] ? check_panic_on_warn+0x21/0xa0 [ 61.251808][ T109] ? __memcpy_flushcache+0x2b0/0x2b0 [ 61.257105][ T109] ? _printk+0xd5/0x120 [ 61.261262][ T109] ? panic+0x850/0x850 [ 61.265329][ T109] check_panic_on_warn+0x82/0xa0 [ 61.270261][ T109] __ubsan_handle_out_of_bounds+0x13c/0x150 [ 61.276157][ T109] dbJoin+0x2e9/0x310 [ 61.280135][ T109] dbFreeBits+0x4ef/0xdb0 [ 61.284465][ T109] dbFree+0x35b/0x670 [ 61.288499][ T109] txFreeMap+0x798/0xd50 [ 61.292743][ T109] txUpdateMap+0x342/0x9e0 [ 61.297161][ T109] ? txCommit+0x6a20/0x6a20 [ 61.301663][ T109] jfs_lazycommit+0x47f/0xb70 [ 61.306340][ T109] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 61.312234][ T109] ? lockdep_hardirqs_on+0x98/0x140 [ 61.317461][ T109] ? txFreelock+0x580/0x580 [ 61.322051][ T109] ? do_task_dead+0xd0/0xd0 [ 61.327195][ T109] kthread+0x2d3/0x370 [ 61.331332][ T109] ? txFreelock+0x580/0x580 [ 61.335839][ T109] ? kthread_blkcg+0xd0/0xd0 [ 61.340435][ T109] ret_from_fork+0x48/0x80 [ 61.344845][ T109] ? kthread_blkcg+0xd0/0xd0 [ 61.349425][ T109] ret_from_fork_asm+0x11/0x20 [ 61.354200][ T109] [ 61.357389][ T109] Kernel Offset: disabled [ 61.361803][ T109] Rebooting in 86400 seconds..