./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3096617353 <...> Warning: Permanently added '10.128.0.173' (ED25519) to the list of known hosts. execve("./syz-executor3096617353", ["./syz-executor3096617353"], 0x7ffdc525a280 /* 10 vars */) = 0 brk(NULL) = 0x555555a8c000 brk(0x555555a8cd00) = 0x555555a8cd00 arch_prctl(ARCH_SET_FS, 0x555555a8c380) = 0 set_tid_address(0x555555a8c650) = 5034 set_robust_list(0x555555a8c660, 24) = 0 rseq(0x555555a8cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3096617353", 4096) = 28 getrandom("\x47\x39\x69\x3b\x98\x70\x15\xfa", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555a8cd00 brk(0x555555aadd00) = 0x555555aadd00 brk(0x555555aae000) = 0x555555aae000 mprotect(0x7fe4905be000, 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 5035 attached [pid 5035] set_robust_list(0x555555a8c660, 24) = 0 [pid 5034] <... clone resumed>, child_tidptr=0x555555a8c650) = 5035 [pid 5035] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5035] setsid() = 1 [pid 5035] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5035] unshare(CLONE_NEWNS) = 0 [pid 5035] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5035] unshare(CLONE_NEWIPC) = 0 [pid 5035] unshare(CLONE_NEWCGROUP) = 0 [pid 5035] unshare(CLONE_NEWUTS) = 0 [pid 5035] unshare(CLONE_SYSVSEM) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "16777216", 8) = 8 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "536870912", 9) = 9 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "8192", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5035] close(3) = 0 [pid 5035] getpid() = 1 [pid 5035] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 57.999193][ T5035] dump_stack_lvl+0x125/0x1b0 [ 58.003874][ T5035] __ubsan_handle_out_of_bounds+0x111/0x150 [ 58.009843][ T5035] do_journal_end+0x406d/0x4c80 [ 58.014771][ T5035] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 58.020822][ T5035] ? dquot_scan_active+0x2f0/0x2f0 [ 58.025913][ T5035] reiserfs_sync_fs+0x10e/0x140 [ 58.030746][ T5035] ? handle_quota_files+0x3b0/0x3b0 [ 58.035923][ T5035] ? get_nr_dirty_inodes+0x176/0x1e0 [ 58.041366][ T5035] ? handle_quota_files+0x3b0/0x3b0 [ 58.046539][ T5035] sync_filesystem+0x109/0x280 [ 58.051379][ T5035] generic_shutdown_super+0x7e/0x3c0 [ 58.056662][ T5035] kill_block_super+0x3b/0x70 [ 58.061505][ T5035] deactivate_locked_super+0x9a/0x170 [ 58.066872][ T5035] deactivate_super+0xde/0x100 [ 58.071724][ T5035] cleanup_mnt+0x222/0x3d0 [ 58.076225][ T5035] task_work_run+0x14d/0x240 [ 58.080820][ T5035] ? task_work_cancel+0x30/0x30 [ 58.085671][ T5035] ? __put_net+0x61/0x70 [ 58.089911][ T5035] do_exit+0xa92/0x2a20 [ 58.094063][ T5035] ? do_group_exit+0x1c5/0x2a0 [ 58.098823][ T5035] ? reacquire_held_locks+0x4b0/0x4b0 [ 58.104188][ T5035] ? do_raw_spin_lock+0x12e/0x2b0 [ 58.109210][ T5035] ? mm_update_next_owner+0x840/0x840 [ 58.114584][ T5035] ? spin_bug+0x1d0/0x1d0 [ 58.118912][ T5035] do_group_exit+0xd4/0x2a0 [ 58.123413][ T5035] __x64_sys_exit_group+0x3e/0x50 [ 58.128433][ T5035] do_syscall_64+0x38/0xb0 [ 58.132845][ T5035] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.138734][ T5035] RIP: 0033:0x7fe490546a89 [ 58.143225][ T5035] Code: Unable to access opcode bytes at 0x7fe490546a5f. [ 58.150237][ T5035] RSP: 002b:00007ffebf61a258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 58.158642][ T5035] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe490546a89 [ 58.166601][ T5035] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 58.174650][ T5035] RBP: 00007fe4905c4390 R08: ffffffffffffffb8 R09: 00000000000010f7 [ 58.182699][ T5035] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4905c4390 [ 58.190743][ T5035] R13: 0000000000000000 R14: 00007fe4905c5100 R15: 00007fe490514d40 [ 58.198718][ T5035] [ 58.205716][ T5035] ================================================================================ [ 58.215185][ T5035] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 58.222371][ T5035] CPU: 0 PID: 5035 Comm: syz-executor309 Not tainted 6.6.0-rc3-syzkaller #0 [ 58.231022][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 58.241053][ T5035] Call Trace: [ 58.244311][ T5035] [ 58.247221][ T5035] dump_stack_lvl+0xd9/0x1b0 [ 58.251797][ T5035] panic+0x6a6/0x750 [ 58.255671][ T5035] ? panic_smp_self_stop+0xa0/0xa0 [ 58.260763][ T5035] ? syslog_print_all+0x3f0/0x3f0 [ 58.265775][ T5035] check_panic_on_warn+0xab/0xb0 [ 58.270694][ T5035] __ubsan_handle_out_of_bounds+0x139/0x150 [ 58.276573][ T5035] do_journal_end+0x406d/0x4c80 [ 58.281436][ T5035] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 58.287576][ T5035] ? dquot_scan_active+0x2f0/0x2f0 [ 58.292669][ T5035] reiserfs_sync_fs+0x10e/0x140 [ 58.297496][ T5035] ? handle_quota_files+0x3b0/0x3b0 [ 58.302699][ T5035] ? get_nr_dirty_inodes+0x176/0x1e0 [ 58.307976][ T5035] ? handle_quota_files+0x3b0/0x3b0 [ 58.313253][ T5035] sync_filesystem+0x109/0x280 [ 58.318014][ T5035] generic_shutdown_super+0x7e/0x3c0 [ 58.323296][ T5035] kill_block_super+0x3b/0x70 [ 58.327967][ T5035] deactivate_locked_super+0x9a/0x170 [ 58.333334][ T5035] deactivate_super+0xde/0x100 [ 58.338096][ T5035] cleanup_mnt+0x222/0x3d0 [ 58.342688][ T5035] task_work_run+0x14d/0x240 [ 58.347280][ T5035] ? task_work_cancel+0x30/0x30 [ 58.352217][ T5035] ? __put_net+0x61/0x70 [ 58.356462][ T5035] do_exit+0xa92/0x2a20 [ 58.360634][ T5035] ? do_group_exit+0x1c5/0x2a0 [ 58.365403][ T5035] ? reacquire_held_locks+0x4b0/0x4b0 [ 58.370769][ T5035] ? do_raw_spin_lock+0x12e/0x2b0 [ 58.375791][ T5035] ? mm_update_next_owner+0x840/0x840 [ 58.381176][ T5035] ? spin_bug+0x1d0/0x1d0 [ 58.385506][ T5035] do_group_exit+0xd4/0x2a0 [ 58.390009][ T5035] __x64_sys_exit_group+0x3e/0x50 [ 58.395045][ T5035] do_syscall_64+0x38/0xb0 [ 58.399455][ T5035] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.405340][ T5035] RIP: 0033:0x7fe490546a89 [ 58.409745][ T5035] Code: Unable to access opcode bytes at 0x7fe490546a5f. [ 58.416744][ T5035] RSP: 002b:00007ffebf61a258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 58.425172][ T5035] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe490546a89 [ 58.433133][ T5035] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 58.441095][ T5035] RBP: 00007fe4905c4390 R08: ffffffffffffffb8 R09: 00000000000010f7 [ 58.449057][ T5035] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4905c4390 [ 58.457025][ T5035] R13: 0000000000000000 R14: 00007fe4905c5100 R15: 00007fe490514d40 [ 58.464996][ T5035] [ 58.468922][ T5035] Kernel Offset: disabled [ 58.473297][ T5035] Rebooting in 86400 seconds..