./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1904017951 <...> forked to background, child pid 3185[ 24.746485][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 no interfaces have a carrier [ 24.765246][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts. execve("./syz-executor1904017951", ["./syz-executor1904017951"], 0x7fff224fe3a0 /* 10 vars */) = 0 brk(NULL) = 0x5555569cb000 brk(0x5555569cbc40) = 0x5555569cbc40 arch_prctl(ARCH_SET_FS, 0x5555569cb300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1904017951", 4096) = 28 brk(0x5555569ecc40) = 0x5555569ecc40 brk(0x5555569ed000) = 0x5555569ed000 mprotect(0x7f233ecb0000, 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 3607 attached , child_tidptr=0x5555569cb5d0) = 3607 [pid 3607] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3607] setsid() = 1 [pid 3607] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3607] unshare(CLONE_NEWNS) = 0 [pid 3607] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3607] unshare(CLONE_NEWIPC) = 0 [pid 3607] unshare(CLONE_NEWCGROUP) = 0 [pid 3607] unshare(CLONE_NEWUTS) = 0 [pid 3607] unshare(CLONE_SYSVSEM) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "16777216", 8) = 8 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "536870912", 9) = 9 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "8192", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3607] close(3) = 0 [pid 3607] getpid() = 1 [pid 3607] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 49.218805][ T122] dump_stack_lvl+0x1b1/0x28e [ 49.223549][ T122] ? fortify_panic+0x13/0x13 [ 49.228188][ T122] ? vsnprintf+0x1af/0x1ce0 [ 49.232710][ T122] ? panic+0x715/0x715 [ 49.236803][ T122] __ubsan_handle_shift_out_of_bounds+0x33d/0x3b0 [ 49.243213][ T122] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.248398][ T122] ? lockdep_hardirqs_on+0x8d/0x130 [ 49.253581][ T122] dbUpdatePMap+0xdf5/0xef0 [ 49.258076][ T122] txAllocPMap+0x581/0x6c0 [ 49.262480][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 49.268458][ T122] txUpdateMap+0x883/0xaa0 [ 49.272896][ T122] ? txCommit+0x6d40/0x6d40 [ 49.277422][ T122] jfs_lazycommit+0x433/0xba0 [ 49.282110][ T122] ? txFreelock+0x580/0x580 [ 49.286612][ T122] ? do_task_dead+0xc0/0xc0 [ 49.291133][ T122] ? _raw_spin_unlock+0x40/0x40 [ 49.296005][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 49.302008][ T122] ? __kthread_parkme+0x166/0x1c0 [ 49.307051][ T122] kthread+0x266/0x300 [ 49.311129][ T122] ? txFreelock+0x580/0x580 [ 49.315632][ T122] ? kthread_blkcg+0xd0/0xd0 [ 49.320278][ T122] ret_from_fork+0x1f/0x30 [ 49.324704][ T122] [ 49.328920][ T122] ================================================================================ [ 49.338724][ T122] Kernel panic - not syncing: panic_on_warn set ... [ 49.345329][ T122] CPU: 0 PID: 122 Comm: jfsCommit Not tainted 6.0.0-syzkaller #0 [ 49.353034][ T122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 49.363072][ T122] Call Trace: [ 49.366336][ T122] [ 49.369252][ T122] dump_stack_lvl+0x1b1/0x28e [ 49.373915][ T122] ? fortify_panic+0x13/0x13 [ 49.378496][ T122] ? panic+0x715/0x715 [ 49.382560][ T122] ? preempt_schedule_thunk+0x16/0x18 [ 49.387917][ T122] ? vscnprintf+0x59/0x80 [ 49.392242][ T122] panic+0x2d6/0x715 [ 49.396124][ T122] ? __ubsan_handle_shift_out_of_bounds+0x360/0x3b0 [ 49.402698][ T122] ? fb_is_primary_device+0xcc/0xcc [ 49.407878][ T122] ? panic+0x715/0x715 [ 49.411936][ T122] __ubsan_handle_shift_out_of_bounds+0x3af/0x3b0 [ 49.418339][ T122] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.423520][ T122] ? lockdep_hardirqs_on+0x8d/0x130 [ 49.428702][ T122] dbUpdatePMap+0xdf5/0xef0 [ 49.433200][ T122] txAllocPMap+0x581/0x6c0 [ 49.437600][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 49.443574][ T122] txUpdateMap+0x883/0xaa0 [ 49.447991][ T122] ? txCommit+0x6d40/0x6d40 [ 49.452490][ T122] jfs_lazycommit+0x433/0xba0 [ 49.457163][ T122] ? txFreelock+0x580/0x580 [ 49.461656][ T122] ? do_task_dead+0xc0/0xc0 [ 49.466167][ T122] ? _raw_spin_unlock+0x40/0x40 [ 49.471038][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 49.477029][ T122] ? __kthread_parkme+0x166/0x1c0 [ 49.482056][ T122] kthread+0x266/0x300 [ 49.486118][ T122] ? txFreelock+0x580/0x580 [ 49.490612][ T122] ? kthread_blkcg+0xd0/0xd0 [ 49.495191][ T122] ret_from_fork+0x1f/0x30 [ 49.499606][ T122] [ 49.502802][ T122] Kernel Offset: disabled [ 49.507174][ T122] Rebooting in 86400 seconds..