./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3994446527 <...> Warning: Permanently added '10.128.1.67' (ED25519) to the list of known hosts. execve("./syz-executor3994446527", ["./syz-executor3994446527"], 0x7ffc626e0640 /* 10 vars */) = 0 brk(NULL) = 0x555555c9b000 brk(0x555555c9bd00) = 0x555555c9bd00 arch_prctl(ARCH_SET_FS, 0x555555c9b380) = 0 set_tid_address(0x555555c9b650) = 5040 set_robust_list(0x555555c9b660, 24) = 0 rseq(0x555555c9bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3994446527", 4096) = 28 getrandom("\xad\x64\xee\xc2\xc6\x4d\x3d\xe6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555c9bd00 brk(0x555555cbcd00) = 0x555555cbcd00 brk(0x555555cbd000) = 0x555555cbd000 mprotect(0x7f52d6105000, 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 5041 attached , child_tidptr=0x555555c9b650) = 5041 [pid 5041] set_robust_list(0x555555c9b660, 24) = 0 [pid 5041] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5041] setsid() = 1 [pid 5041] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5041] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5041] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5041] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5041] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5041] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5041] unshare(CLONE_NEWNS) = 0 [pid 5041] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5041] unshare(CLONE_NEWIPC) = 0 [pid 5041] unshare(CLONE_NEWCGROUP) = 0 [pid 5041] unshare(CLONE_NEWUTS) = 0 [pid 5041] unshare(CLONE_SYSVSEM) = 0 [pid 5041] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "16777216", 8) = 8 [pid 5041] close(3) = 0 [pid 5041] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "536870912", 9) = 9 [pid 5041] close(3) = 0 [pid 5041] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "1024", 4) = 4 [pid 5041] close(3) = 0 [pid 5041] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "8192", 4) = 4 [pid 5041] close(3) = 0 [pid 5041] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "1024", 4) = 4 [pid 5041] close(3) = 0 [pid 5041] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "1024", 4) = 4 [pid 5041] close(3) = 0 [pid 5041] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5041] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5041] close(3) = 0 [pid 5041] getpid() = 1 [pid 5041] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 57.170003][ T5041] dump_stack_lvl+0x125/0x1b0 [ 57.174682][ T5041] __ubsan_handle_out_of_bounds+0x111/0x150 [ 57.180660][ T5041] do_journal_end+0x406d/0x4c80 [ 57.185518][ T5041] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 57.191601][ T5041] ? dquot_scan_active+0x2f0/0x2f0 [ 57.196705][ T5041] reiserfs_sync_fs+0x10e/0x140 [ 57.201546][ T5041] ? handle_quota_files+0x3b0/0x3b0 [ 57.206736][ T5041] ? get_nr_dirty_inodes+0x176/0x1e0 [ 57.212027][ T5041] ? handle_quota_files+0x3b0/0x3b0 [ 57.217216][ T5041] sync_filesystem+0x109/0x280 [ 57.222015][ T5041] generic_shutdown_super+0x7e/0x3c0 [ 57.227317][ T5041] kill_block_super+0x3b/0x70 [ 57.231992][ T5041] deactivate_locked_super+0x9a/0x170 [ 57.237355][ T5041] deactivate_super+0xde/0x100 [ 57.242119][ T5041] cleanup_mnt+0x222/0x3d0 [ 57.246526][ T5041] task_work_run+0x14d/0x240 [ 57.251116][ T5041] ? task_work_cancel+0x30/0x30 [ 57.255964][ T5041] ? __put_net+0x61/0x70 [ 57.260207][ T5041] do_exit+0xa92/0x2a20 [ 57.264353][ T5041] ? do_group_exit+0x1c5/0x2a0 [ 57.269108][ T5041] ? reacquire_held_locks+0x4b0/0x4b0 [ 57.274474][ T5041] ? do_raw_spin_lock+0x12e/0x2b0 [ 57.279494][ T5041] ? mm_update_next_owner+0x840/0x840 [ 57.284852][ T5041] ? spin_bug+0x1d0/0x1d0 [ 57.289198][ T5041] do_group_exit+0xd4/0x2a0 [ 57.293696][ T5041] __x64_sys_exit_group+0x3e/0x50 [ 57.298721][ T5041] do_syscall_64+0x38/0xb0 [ 57.303163][ T5041] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.309045][ T5041] RIP: 0033:0x7f52d608dc09 [ 57.313442][ T5041] Code: Unable to access opcode bytes at 0x7f52d608dbdf. [ 57.320445][ T5041] RSP: 002b:00007ffd1f4828f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 57.328843][ T5041] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f52d608dc09 [ 57.336800][ T5041] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 57.344795][ T5041] RBP: 00007f52d610b390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 57.352757][ T5041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f52d610b390 [ 57.360721][ T5041] R13: 0000000000000000 R14: 00007f52d610c100 R15: 00007f52d605bed0 [ 57.368691][ T5041] [ 57.373706][ T5041] ================================================================================ [ 57.383181][ T5041] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 57.390367][ T5041] CPU: 0 PID: 5041 Comm: syz-executor399 Not tainted 6.6.0-rc3-syzkaller #0 [ 57.399029][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 57.409100][ T5041] Call Trace: [ 57.412371][ T5041] [ 57.415293][ T5041] dump_stack_lvl+0xd9/0x1b0 [ 57.419879][ T5041] panic+0x6a6/0x750 [ 57.423763][ T5041] ? panic_smp_self_stop+0xa0/0xa0 [ 57.428863][ T5041] ? syslog_print_all+0x3f0/0x3f0 [ 57.433889][ T5041] check_panic_on_warn+0xab/0xb0 [ 57.438821][ T5041] __ubsan_handle_out_of_bounds+0x139/0x150 [ 57.444707][ T5041] do_journal_end+0x406d/0x4c80 [ 57.449558][ T5041] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 57.455613][ T5041] ? dquot_scan_active+0x2f0/0x2f0 [ 57.460714][ T5041] reiserfs_sync_fs+0x10e/0x140 [ 57.465546][ T5041] ? handle_quota_files+0x3b0/0x3b0 [ 57.470732][ T5041] ? get_nr_dirty_inodes+0x176/0x1e0 [ 57.476010][ T5041] ? handle_quota_files+0x3b0/0x3b0 [ 57.481200][ T5041] sync_filesystem+0x109/0x280 [ 57.485969][ T5041] generic_shutdown_super+0x7e/0x3c0 [ 57.491265][ T5041] kill_block_super+0x3b/0x70 [ 57.495943][ T5041] deactivate_locked_super+0x9a/0x170 [ 57.501319][ T5041] deactivate_super+0xde/0x100 [ 57.506086][ T5041] cleanup_mnt+0x222/0x3d0 [ 57.510507][ T5041] task_work_run+0x14d/0x240 [ 57.515098][ T5041] ? task_work_cancel+0x30/0x30 [ 57.520040][ T5041] ? __put_net+0x61/0x70 [ 57.524284][ T5041] do_exit+0xa92/0x2a20 [ 57.528442][ T5041] ? do_group_exit+0x1c5/0x2a0 [ 57.533235][ T5041] ? reacquire_held_locks+0x4b0/0x4b0 [ 57.538607][ T5041] ? do_raw_spin_lock+0x12e/0x2b0 [ 57.543630][ T5041] ? mm_update_next_owner+0x840/0x840 [ 57.548997][ T5041] ? spin_bug+0x1d0/0x1d0 [ 57.553332][ T5041] do_group_exit+0xd4/0x2a0 [ 57.557839][ T5041] __x64_sys_exit_group+0x3e/0x50 [ 57.562870][ T5041] do_syscall_64+0x38/0xb0 [ 57.567287][ T5041] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.573183][ T5041] RIP: 0033:0x7f52d608dc09 [ 57.577593][ T5041] Code: Unable to access opcode bytes at 0x7f52d608dbdf. [ 57.584605][ T5041] RSP: 002b:00007ffd1f4828f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 57.593021][ T5041] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f52d608dc09 [ 57.600993][ T5041] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 57.608958][ T5041] RBP: 00007f52d610b390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 57.616930][ T5041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f52d610b390 [ 57.624905][ T5041] R13: 0000000000000000 R14: 00007f52d610c100 R15: 00007f52d605bed0 [ 57.632898][ T5041] [ 57.636722][ T5041] Kernel Offset: disabled [ 57.641121][ T5041] Rebooting in 86400 seconds..