./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor277526252 <...> Warning: Permanently added '10.128.0.218' (ED25519) to the list of known hosts. execve("./syz-executor277526252", ["./syz-executor277526252"], 0x7ffcb78f7de0 /* 10 vars */) = 0 brk(NULL) = 0x5555567f2000 brk(0x5555567f2d00) = 0x5555567f2d00 arch_prctl(ARCH_SET_FS, 0x5555567f2380) = 0 set_tid_address(0x5555567f2650) = 5033 set_robust_list(0x5555567f2660, 24) = 0 rseq(0x5555567f2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor277526252", 4096) = 27 getrandom("\x15\xcb\x57\x0e\x17\x35\xfd\xa6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555567f2d00 brk(0x555556813d00) = 0x555556813d00 brk(0x555556814000) = 0x555556814000 mprotect(0x7f84e0ce1000, 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 5034 attached [pid 5034] set_robust_list(0x5555567f2660, 24) = 0 [pid 5033] <... clone resumed>, child_tidptr=0x5555567f2650) = 5034 [pid 5034] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5034] setsid() = 1 [pid 5034] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5034] unshare(CLONE_NEWNS) = 0 [pid 5034] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5034] unshare(CLONE_NEWIPC) = 0 [pid 5034] unshare(CLONE_NEWCGROUP) = 0 [pid 5034] unshare(CLONE_NEWUTS) = 0 [pid 5034] unshare(CLONE_SYSVSEM) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "16777216", 8) = 8 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "536870912", 9) = 9 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "8192", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5034] close(3) = 0 [pid 5034] getpid() = 1 [pid 5034] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 54.365623][ T5034] dump_stack_lvl+0x125/0x1b0 [ 54.370309][ T5034] __ubsan_handle_out_of_bounds+0x111/0x150 [ 54.376195][ T5034] do_journal_end+0x406d/0x4c80 [ 54.381044][ T5034] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 54.387097][ T5034] ? dquot_scan_active+0x2f0/0x2f0 [ 54.392197][ T5034] reiserfs_sync_fs+0x10e/0x140 [ 54.397026][ T5034] ? handle_quota_files+0x3b0/0x3b0 [ 54.402210][ T5034] ? get_nr_dirty_inodes+0x176/0x1e0 [ 54.407574][ T5034] ? handle_quota_files+0x3b0/0x3b0 [ 54.412752][ T5034] sync_filesystem+0x109/0x280 [ 54.417504][ T5034] generic_shutdown_super+0x7e/0x3c0 [ 54.422778][ T5034] kill_block_super+0x3b/0x70 [ 54.427438][ T5034] deactivate_locked_super+0x9a/0x170 [ 54.432794][ T5034] deactivate_super+0xde/0x100 [ 54.437543][ T5034] cleanup_mnt+0x222/0x3d0 [ 54.441959][ T5034] task_work_run+0x14d/0x240 [ 54.446550][ T5034] ? task_work_cancel+0x30/0x30 [ 54.451387][ T5034] ? __put_net+0x61/0x70 [ 54.455613][ T5034] do_exit+0xa92/0x2a20 [ 54.459766][ T5034] ? do_group_exit+0x1c5/0x2a0 [ 54.464519][ T5034] ? reacquire_held_locks+0x4b0/0x4b0 [ 54.469874][ T5034] ? do_raw_spin_lock+0x12e/0x2b0 [ 54.474882][ T5034] ? mm_update_next_owner+0x840/0x840 [ 54.480236][ T5034] ? spin_bug+0x1d0/0x1d0 [ 54.484552][ T5034] do_group_exit+0xd4/0x2a0 [ 54.489042][ T5034] __x64_sys_exit_group+0x3e/0x50 [ 54.494055][ T5034] do_syscall_64+0x38/0xb0 [ 54.498482][ T5034] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.504359][ T5034] RIP: 0033:0x7f84e0c69c89 [ 54.508754][ T5034] Code: Unable to access opcode bytes at 0x7f84e0c69c5f. [ 54.515762][ T5034] RSP: 002b:00007fffef356fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 54.524166][ T5034] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f84e0c69c89 [ 54.532151][ T5034] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 54.540114][ T5034] RBP: 00007f84e0ce7390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 54.548155][ T5034] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f84e0ce7390 [ 54.556104][ T5034] R13: 0000000000000000 R14: 00007f84e0ce8100 R15: 00007f84e0c37f50 [ 54.564063][ T5034] [ 54.567450][ T5034] ================================================================================ [ 54.576784][ T5034] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 54.584061][ T5034] CPU: 0 PID: 5034 Comm: syz-executor277 Not tainted 6.6.0-rc3-syzkaller #0 [ 54.592723][ T5034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 54.602764][ T5034] Call Trace: [ 54.606033][ T5034] [ 54.608949][ T5034] dump_stack_lvl+0xd9/0x1b0 [ 54.613535][ T5034] panic+0x6a6/0x750 [ 54.617421][ T5034] ? panic_smp_self_stop+0xa0/0xa0 [ 54.622525][ T5034] ? syslog_print_all+0x3f0/0x3f0 [ 54.627556][ T5034] check_panic_on_warn+0xab/0xb0 [ 54.632488][ T5034] __ubsan_handle_out_of_bounds+0x139/0x150 [ 54.638382][ T5034] do_journal_end+0x406d/0x4c80 [ 54.643247][ T5034] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 54.649319][ T5034] ? dquot_scan_active+0x2f0/0x2f0 [ 54.654428][ T5034] reiserfs_sync_fs+0x10e/0x140 [ 54.659266][ T5034] ? handle_quota_files+0x3b0/0x3b0 [ 54.664540][ T5034] ? get_nr_dirty_inodes+0x176/0x1e0 [ 54.669823][ T5034] ? handle_quota_files+0x3b0/0x3b0 [ 54.675010][ T5034] sync_filesystem+0x109/0x280 [ 54.679771][ T5034] generic_shutdown_super+0x7e/0x3c0 [ 54.685053][ T5034] kill_block_super+0x3b/0x70 [ 54.689812][ T5034] deactivate_locked_super+0x9a/0x170 [ 54.695179][ T5034] deactivate_super+0xde/0x100 [ 54.699939][ T5034] cleanup_mnt+0x222/0x3d0 [ 54.704346][ T5034] task_work_run+0x14d/0x240 [ 54.708936][ T5034] ? task_work_cancel+0x30/0x30 [ 54.713789][ T5034] ? __put_net+0x61/0x70 [ 54.718027][ T5034] do_exit+0xa92/0x2a20 [ 54.722176][ T5034] ? do_group_exit+0x1c5/0x2a0 [ 54.726932][ T5034] ? reacquire_held_locks+0x4b0/0x4b0 [ 54.732300][ T5034] ? do_raw_spin_lock+0x12e/0x2b0 [ 54.737325][ T5034] ? mm_update_next_owner+0x840/0x840 [ 54.742695][ T5034] ? spin_bug+0x1d0/0x1d0 [ 54.747024][ T5034] do_group_exit+0xd4/0x2a0 [ 54.751531][ T5034] __x64_sys_exit_group+0x3e/0x50 [ 54.756547][ T5034] do_syscall_64+0x38/0xb0 [ 54.760958][ T5034] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.766842][ T5034] RIP: 0033:0x7f84e0c69c89 [ 54.771245][ T5034] Code: Unable to access opcode bytes at 0x7f84e0c69c5f. [ 54.778248][ T5034] RSP: 002b:00007fffef356fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 54.786733][ T5034] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f84e0c69c89 [ 54.794690][ T5034] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 54.802647][ T5034] RBP: 00007f84e0ce7390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 54.810603][ T5034] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f84e0ce7390 [ 54.818560][ T5034] R13: 0000000000000000 R14: 00007f84e0ce8100 R15: 00007f84e0c37f50 [ 54.826527][ T5034] [ 54.829659][ T5034] Kernel Offset: disabled [ 54.834043][ T5034] Rebooting in 86400 seconds..