./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor170549338 <...> Warning: Permanently added '10.128.0.213' (ECDSA) to the list of known hosts. execve("./syz-executor170549338", ["./syz-executor170549338"], 0x7fff24656110 /* 10 vars */) = 0 brk(NULL) = 0x55555732a000 brk(0x55555732ac40) = 0x55555732ac40 arch_prctl(ARCH_SET_FS, 0x55555732a300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor170549338", 4096) = 27 brk(0x55555734bc40) = 0x55555734bc40 brk(0x55555734c000) = 0x55555734c000 mprotect(0x7fa681a63000, 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 3615 attached , child_tidptr=0x55555732a5d0) = 3615 [pid 3615] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] setsid() = 1 [pid 3615] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3615] unshare(CLONE_NEWNS) = 0 [pid 3615] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3615] unshare(CLONE_NEWIPC) = 0 [pid 3615] unshare(CLONE_NEWCGROUP) = 0 [pid 3615] unshare(CLONE_NEWUTS) = 0 [pid 3615] unshare(CLONE_SYSVSEM) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "16777216", 8) = 8 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "536870912", 9) = 9 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "8192", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3615] close(3) = 0 [pid 3615] getpid() = 1 [pid 3615] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 46.400377][ T122] dump_stack_lvl+0x1b1/0x28e [ 46.405062][ T122] ? fortify_panic+0x13/0x13 [ 46.409632][ T122] ? vsnprintf+0x1af/0x1ce0 [ 46.414119][ T122] ? panic+0x715/0x715 [ 46.418192][ T122] __ubsan_handle_shift_out_of_bounds+0x33d/0x3b0 [ 46.424608][ T122] ? _raw_spin_unlock_irq+0x25/0x40 [ 46.429792][ T122] dbUpdatePMap+0xdf5/0xef0 [ 46.434287][ T122] txAllocPMap+0x581/0x6c0 [ 46.438688][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 46.444661][ T122] txUpdateMap+0x883/0xaa0 [ 46.449069][ T122] ? txCommit+0x6d40/0x6d40 [ 46.453575][ T122] jfs_lazycommit+0x433/0xba0 [ 46.458254][ T122] ? txFreelock+0x580/0x580 [ 46.462743][ T122] ? do_task_dead+0xc0/0xc0 [ 46.467232][ T122] ? _raw_spin_unlock+0x40/0x40 [ 46.472066][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 46.478030][ T122] ? __kthread_parkme+0x166/0x1c0 [ 46.483043][ T122] kthread+0x266/0x300 [ 46.487101][ T122] ? txFreelock+0x580/0x580 [ 46.491596][ T122] ? kthread_blkcg+0xd0/0xd0 [ 46.496177][ T122] ret_from_fork+0x1f/0x30 [ 46.500597][ T122] [ 46.505556][ T122] ================================================================================ [ 46.515030][ T122] Kernel panic - not syncing: panic_on_warn set ... [ 46.521619][ T122] CPU: 1 PID: 122 Comm: jfsCommit Not tainted 6.0.0-rc7-syzkaller-00220-gffb4d94b4314 #0 [ 46.531400][ T122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 46.541436][ T122] Call Trace: [ 46.544700][ T122] [ 46.547614][ T122] dump_stack_lvl+0x1b1/0x28e [ 46.552364][ T122] ? fortify_panic+0x13/0x13 [ 46.556932][ T122] ? panic+0x715/0x715 [ 46.560980][ T122] ? __irq_work_queue_local+0x121/0x180 [ 46.566513][ T122] ? vscnprintf+0x59/0x80 [ 46.570829][ T122] panic+0x2d6/0x715 [ 46.574708][ T122] ? __ubsan_handle_shift_out_of_bounds+0x360/0x3b0 [ 46.581451][ T122] ? fb_is_primary_device+0xcc/0xcc [ 46.586631][ T122] ? panic+0x715/0x715 [ 46.590684][ T122] __ubsan_handle_shift_out_of_bounds+0x3af/0x3b0 [ 46.597088][ T122] ? _raw_spin_unlock_irq+0x25/0x40 [ 46.602267][ T122] dbUpdatePMap+0xdf5/0xef0 [ 46.606760][ T122] txAllocPMap+0x581/0x6c0 [ 46.611157][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 46.617126][ T122] txUpdateMap+0x883/0xaa0 [ 46.621533][ T122] ? txCommit+0x6d40/0x6d40 [ 46.626021][ T122] jfs_lazycommit+0x433/0xba0 [ 46.630686][ T122] ? txFreelock+0x580/0x580 [ 46.635170][ T122] ? do_task_dead+0xc0/0xc0 [ 46.639655][ T122] ? _raw_spin_unlock+0x40/0x40 [ 46.644572][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 46.650535][ T122] ? __kthread_parkme+0x166/0x1c0 [ 46.655545][ T122] kthread+0x266/0x300 [ 46.659594][ T122] ? txFreelock+0x580/0x580 [ 46.664080][ T122] ? kthread_blkcg+0xd0/0xd0 [ 46.668652][ T122] ret_from_fork+0x1f/0x30 [ 46.673060][ T122] [ 46.676313][ T122] Kernel Offset: disabled [ 46.680674][ T122] Rebooting in 86400 seconds..