./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor71948361 <...> Warning: Permanently added '10.128.0.242' (ED25519) to the list of known hosts. execve("./syz-executor71948361", ["./syz-executor71948361"], 0x7ffcd7116760 /* 10 vars */) = 0 brk(NULL) = 0x555555bcd000 brk(0x555555bcdd00) = 0x555555bcdd00 arch_prctl(ARCH_SET_FS, 0x555555bcd380) = 0 set_tid_address(0x555555bcd650) = 5049 set_robust_list(0x555555bcd660, 24) = 0 rseq(0x555555bcdca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor71948361", 4096) = 26 getrandom("\xec\x99\x39\xc9\xed\xbb\x3a\x1e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555bcdd00 brk(0x555555beed00) = 0x555555beed00 brk(0x555555bef000) = 0x555555bef000 mprotect(0x7fb5e053d000, 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, child_tidptr=0x555555bcd650) = 5050 ./strace-static-x86_64: Process 5050 attached [pid 5050] set_robust_list(0x555555bcd660, 24) = 0 [pid 5050] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] setsid() = 1 [pid 5050] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5050] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5050] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5050] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5050] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5050] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5050] unshare(CLONE_NEWNS) = 0 [pid 5050] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5050] unshare(CLONE_NEWIPC) = 0 [pid 5050] unshare(CLONE_NEWCGROUP) = 0 [pid 5050] unshare(CLONE_NEWUTS) = 0 [pid 5050] unshare(CLONE_SYSVSEM) = 0 [pid 5050] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "16777216", 8) = 8 [pid 5050] close(3) = 0 [pid 5050] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "536870912", 9) = 9 [pid 5050] close(3) = 0 [pid 5050] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1024", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "8192", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1024", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1024", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5050] close(3) = 0 [pid 5050] getpid() = 1 [pid 5050] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 91.082886][ T5050] dump_stack_lvl+0x125/0x1b0 [ 91.087669][ T5050] __ubsan_handle_out_of_bounds+0x111/0x150 [ 91.093607][ T5050] do_journal_end+0x406d/0x4c80 [ 91.098533][ T5050] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 91.104893][ T5050] ? dquot_scan_active+0x2f0/0x2f0 [ 91.110050][ T5050] reiserfs_sync_fs+0x10e/0x140 [ 91.114927][ T5050] ? handle_quota_files+0x3b0/0x3b0 [ 91.120152][ T5050] ? get_nr_dirty_inodes+0x176/0x1e0 [ 91.125483][ T5050] ? handle_quota_files+0x3b0/0x3b0 [ 91.130716][ T5050] sync_filesystem+0x109/0x280 [ 91.135542][ T5050] generic_shutdown_super+0x7e/0x3c0 [ 91.141136][ T5050] kill_block_super+0x3b/0x70 [ 91.145850][ T5050] deactivate_locked_super+0x9a/0x170 [ 91.151257][ T5050] deactivate_super+0xde/0x100 [ 91.156084][ T5050] cleanup_mnt+0x222/0x3d0 [ 91.160544][ T5050] task_work_run+0x14d/0x240 [ 91.165182][ T5050] ? task_work_cancel+0x30/0x30 [ 91.170120][ T5050] ? __put_net+0x61/0x70 [ 91.174402][ T5050] do_exit+0xa99/0x2ae0 [ 91.178604][ T5050] ? do_group_exit+0x1c5/0x2a0 [ 91.183495][ T5050] ? reacquire_held_locks+0x4b0/0x4b0 [ 91.188939][ T5050] ? do_raw_spin_lock+0x12e/0x2b0 [ 91.194002][ T5050] ? mm_update_next_owner+0x850/0x850 [ 91.199499][ T5050] ? spin_bug+0x1d0/0x1d0 [ 91.203873][ T5050] ? rcu_is_watching+0x12/0xb0 [ 91.208663][ T5050] do_group_exit+0xd4/0x2a0 [ 91.213484][ T5050] __x64_sys_exit_group+0x3e/0x50 [ 91.218564][ T5050] do_syscall_64+0x38/0xb0 [ 91.223117][ T5050] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 91.229046][ T5050] RIP: 0033:0x7fb5e04c5bc9 [ 91.233495][ T5050] Code: Unable to access opcode bytes at 0x7fb5e04c5b9f. [ 91.240739][ T5050] RSP: 002b:00007fff10dd1db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 91.249278][ T5050] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb5e04c5bc9 [ 91.257460][ T5050] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 91.265545][ T5050] RBP: 00007fb5e0543390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 91.273638][ T5050] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb5e0543390 [ 91.281636][ T5050] R13: 0000000000000000 R14: 00007fb5e0544100 R15: 00007fb5e0493ea0 [ 91.289637][ T5050] [ 91.293287][ T5050] ================================================================================ [ 91.303533][ T5050] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 91.310885][ T5050] CPU: 0 PID: 5050 Comm: syz-executor719 Not tainted 6.5.0-next-20230908-syzkaller #0 [ 91.320444][ T5050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 91.330531][ T5050] Call Trace: [ 91.333922][ T5050] [ 91.336878][ T5050] dump_stack_lvl+0xd9/0x1b0 [ 91.341585][ T5050] panic+0x6dc/0x790 [ 91.345572][ T5050] ? panic_smp_self_stop+0xa0/0xa0 [ 91.350731][ T5050] ? syslog_print_all+0x3f0/0x3f0 [ 91.355821][ T5050] check_panic_on_warn+0xab/0xb0 [ 91.360900][ T5050] __ubsan_handle_out_of_bounds+0x139/0x150 [ 91.366845][ T5050] do_journal_end+0x406d/0x4c80 [ 91.371737][ T5050] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 91.377862][ T5050] ? dquot_scan_active+0x2f0/0x2f0 [ 91.383010][ T5050] reiserfs_sync_fs+0x10e/0x140 [ 91.387916][ T5050] ? handle_quota_files+0x3b0/0x3b0 [ 91.393236][ T5050] ? get_nr_dirty_inodes+0x176/0x1e0 [ 91.398559][ T5050] ? handle_quota_files+0x3b0/0x3b0 [ 91.403779][ T5050] sync_filesystem+0x109/0x280 [ 91.408754][ T5050] generic_shutdown_super+0x7e/0x3c0 [ 91.414134][ T5050] kill_block_super+0x3b/0x70 [ 91.418905][ T5050] deactivate_locked_super+0x9a/0x170 [ 91.424323][ T5050] deactivate_super+0xde/0x100 [ 91.429139][ T5050] cleanup_mnt+0x222/0x3d0 [ 91.433640][ T5050] task_work_run+0x14d/0x240 [ 91.438287][ T5050] ? task_work_cancel+0x30/0x30 [ 91.443289][ T5050] ? __put_net+0x61/0x70 [ 91.447600][ T5050] do_exit+0xa99/0x2ae0 [ 91.451992][ T5050] ? do_group_exit+0x1c5/0x2a0 [ 91.456834][ T5050] ? reacquire_held_locks+0x4b0/0x4b0 [ 91.462251][ T5050] ? do_raw_spin_lock+0x12e/0x2b0 [ 91.467316][ T5050] ? mm_update_next_owner+0x850/0x850 [ 91.472731][ T5050] ? spin_bug+0x1d0/0x1d0 [ 91.477095][ T5050] ? rcu_is_watching+0x12/0xb0 [ 91.481895][ T5050] do_group_exit+0xd4/0x2a0 [ 91.486439][ T5050] __x64_sys_exit_group+0x3e/0x50 [ 91.491503][ T5050] do_syscall_64+0x38/0xb0 [ 91.495946][ T5050] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 91.501864][ T5050] RIP: 0033:0x7fb5e04c5bc9 [ 91.506295][ T5050] Code: Unable to access opcode bytes at 0x7fb5e04c5b9f. [ 91.513405][ T5050] RSP: 002b:00007fff10dd1db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 91.521853][ T5050] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb5e04c5bc9 [ 91.529854][ T5050] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 91.537871][ T5050] RBP: 00007fb5e0543390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 91.546021][ T5050] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb5e0543390 [ 91.554557][ T5050] R13: 0000000000000000 R14: 00007fb5e0544100 R15: 00007fb5e0493ea0 [ 91.562568][ T5050] [ 91.566012][ T5050] Kernel Offset: disabled [ 91.570375][ T5050] Rebooting in 86400 seconds..