./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor5428829 <...> Warning: Permanently added '10.128.10.7' (ED25519) to the list of known hosts. execve("./syz-executor5428829", ["./syz-executor5428829"], 0x7fffcc06f290 /* 10 vars */) = 0 brk(NULL) = 0x555556263000 brk(0x555556263d00) = 0x555556263d00 arch_prctl(ARCH_SET_FS, 0x555556263380) = 0 set_tid_address(0x555556263650) = 5048 set_robust_list(0x555556263660, 24) = 0 rseq(0x555556263ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor5428829", 4096) = 25 getrandom("\x3c\x9c\x40\x16\x10\x4b\x8b\x87", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556263d00 brk(0x555556284d00) = 0x555556284d00 brk(0x555556285000) = 0x555556285000 mprotect(0x7f56b1cdc000, 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=0x555556263650) = 5049 ./strace-static-x86_64: Process 5049 attached [pid 5049] set_robust_list(0x555556263660, 24) = 0 [pid 5049] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5049] setsid() = 1 [pid 5049] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5049] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5049] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5049] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5049] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5049] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5049] unshare(CLONE_NEWNS) = 0 [pid 5049] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5049] unshare(CLONE_NEWIPC) = 0 [pid 5049] unshare(CLONE_NEWCGROUP) = 0 [pid 5049] unshare(CLONE_NEWUTS) = 0 [pid 5049] unshare(CLONE_SYSVSEM) = 0 [pid 5049] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "16777216", 8) = 8 [pid 5049] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "536870912", 9) = 9 [pid 5049] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "1024", 4) = 4 [pid 5049] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "8192", 4) = 4 [pid 5049] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "1024", 4) = 4 [pid 5049] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "1024", 4) = 4 [pid 5049] close(3) = 0 [pid 5049] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5049] close(3) = 0 [pid 5049] getpid() = 1 [pid 5049] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 96.730213][ T5049] dump_stack_lvl+0xd9/0x1b0 [ 96.734838][ T5049] print_report+0xc4/0x620 [ 96.739364][ T5049] ? __virt_addr_valid+0x5e/0x2d0 [ 96.744859][ T5049] ? __phys_addr+0xc6/0x140 [ 96.749534][ T5049] kasan_report+0xda/0x110 [ 96.754058][ T5049] ? udf_close_lvid+0x508/0x5c0 [ 96.758935][ T5049] ? udf_close_lvid+0x508/0x5c0 [ 96.763900][ T5049] udf_close_lvid+0x508/0x5c0 [ 96.768619][ T5049] udf_put_super+0x19c/0x200 [ 96.773880][ T5049] ? udf_close_lvid+0x5c0/0x5c0 [ 96.778872][ T5049] generic_shutdown_super+0x161/0x3c0 [ 96.784377][ T5049] kill_block_super+0x3b/0x70 [ 96.789086][ T5049] deactivate_locked_super+0x9a/0x170 [ 96.794498][ T5049] deactivate_super+0xde/0x100 [ 96.799304][ T5049] cleanup_mnt+0x222/0x3d0 [ 96.803838][ T5049] task_work_run+0x14d/0x240 [ 96.808467][ T5049] ? task_work_cancel+0x30/0x30 [ 96.813356][ T5049] ? __put_net+0x61/0x70 [ 96.817633][ T5049] do_exit+0xa99/0x2a20 [ 96.821833][ T5049] ? do_group_exit+0x1c5/0x2a0 [ 96.826634][ T5049] ? reacquire_held_locks+0x4b0/0x4b0 [ 96.832045][ T5049] ? do_raw_spin_lock+0x12e/0x2b0 [ 96.837103][ T5049] ? mm_update_next_owner+0x850/0x850 [ 96.842510][ T5049] ? spin_bug+0x1d0/0x1d0 [ 96.846877][ T5049] ? rcu_is_watching+0x12/0xb0 [ 96.851762][ T5049] do_group_exit+0xd4/0x2a0 [ 96.856305][ T5049] __x64_sys_exit_group+0x3e/0x50 [ 96.861546][ T5049] do_syscall_64+0x38/0xb0 [ 96.865986][ T5049] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 96.871906][ T5049] RIP: 0033:0x7f56b1c44ca9 [ 96.876336][ T5049] Code: Unable to access opcode bytes at 0x7f56b1c44c7f. [ 96.883370][ T5049] RSP: 002b:00007ffd1d5f5018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 96.891833][ T5049] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f56b1c44ca9 [ 96.899906][ T5049] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 96.908154][ T5049] RBP: 00007f56b1ce2390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 96.916252][ T5049] R10: 0000000000000022 R11: 0000000000000246 R12: 00007f56b1ce2390 [ 96.924936][ T5049] R13: 0000000000000000 R14: 00007f56b1ce51c0 R15: 00007f56b1c12470 [ 96.932944][ T5049] [ 96.936167][ T5049] [ 96.938560][ T5049] The buggy address belongs to the physical page: [ 96.944993][ T5049] page:ffffea000205adc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x816b7 [ 96.955339][ T5049] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 96.962484][ T5049] page_type: 0xffffffff() [ 96.966931][ T5049] raw: 00fff00000000000 ffffea000205adc8 ffffea000205adc8 0000000000000000 [ 96.975548][ T5049] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 96.984146][ T5049] page dumped because: kasan: bad access detected [ 96.990589][ T5049] page_owner info is not present (never set?) [ 96.997392][ T5049] [ 96.999728][ T5049] Memory state around the buggy address: [ 97.005369][ T5049] ffff8880816b7080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 97.013649][ T5049] ffff8880816b7100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 97.021909][ T5049] >ffff8880816b7180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 97.030066][ T5049] ^ [ 97.037017][ T5049] ffff8880816b7200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 97.045543][ T5049] ffff8880816b7280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 97.054219][ T5049] ================================================================== [ 97.065246][ T5049] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 97.077084][ T5049] CPU: 1 PID: 5049 Comm: syz-executor542 Not tainted 6.5.0-next-20230831-syzkaller #0 [ 97.086660][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 97.096734][ T5049] Call Trace: [ 97.100028][ T5049] [ 97.103006][ T5049] dump_stack_lvl+0xd9/0x1b0 [ 97.107642][ T5049] panic+0x6a6/0x750 [ 97.111562][ T5049] ? panic_smp_self_stop+0xa0/0xa0 [ 97.116786][ T5049] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 97.122829][ T5049] ? preempt_schedule_thunk+0x1a/0x30 [ 97.128240][ T5049] ? preempt_schedule_common+0x45/0xc0 [ 97.133819][ T5049] check_panic_on_warn+0xab/0xb0 [ 97.139049][ T5049] end_report+0x108/0x150 [ 97.143406][ T5049] kasan_report+0xea/0x110 [ 97.147847][ T5049] ? udf_close_lvid+0x508/0x5c0 [ 97.152732][ T5049] ? udf_close_lvid+0x508/0x5c0 [ 97.157616][ T5049] udf_close_lvid+0x508/0x5c0 [ 97.162352][ T5049] udf_put_super+0x19c/0x200 [ 97.167009][ T5049] ? udf_close_lvid+0x5c0/0x5c0 [ 97.172189][ T5049] generic_shutdown_super+0x161/0x3c0 [ 97.177689][ T5049] kill_block_super+0x3b/0x70 [ 97.182399][ T5049] deactivate_locked_super+0x9a/0x170 [ 97.187812][ T5049] deactivate_super+0xde/0x100 [ 97.192614][ T5049] cleanup_mnt+0x222/0x3d0 [ 97.197065][ T5049] task_work_run+0x14d/0x240 [ 97.201691][ T5049] ? task_work_cancel+0x30/0x30 [ 97.207028][ T5049] ? __put_net+0x61/0x70 [ 97.211397][ T5049] do_exit+0xa99/0x2a20 [ 97.215592][ T5049] ? do_group_exit+0x1c5/0x2a0 [ 97.220408][ T5049] ? reacquire_held_locks+0x4b0/0x4b0 [ 97.225833][ T5049] ? do_raw_spin_lock+0x12e/0x2b0 [ 97.231264][ T5049] ? mm_update_next_owner+0x850/0x850 [ 97.237472][ T5049] ? spin_bug+0x1d0/0x1d0 [ 97.241842][ T5049] ? rcu_is_watching+0x12/0xb0 [ 97.246805][ T5049] do_group_exit+0xd4/0x2a0 [ 97.251438][ T5049] __x64_sys_exit_group+0x3e/0x50 [ 97.256589][ T5049] do_syscall_64+0x38/0xb0 [ 97.261026][ T5049] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 97.266967][ T5049] RIP: 0033:0x7f56b1c44ca9 [ 97.271417][ T5049] Code: Unable to access opcode bytes at 0x7f56b1c44c7f. [ 97.278540][ T5049] RSP: 002b:00007ffd1d5f5018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 97.286981][ T5049] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f56b1c44ca9 [ 97.295245][ T5049] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 97.303232][ T5049] RBP: 00007f56b1ce2390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 97.311226][ T5049] R10: 0000000000000022 R11: 0000000000000246 R12: 00007f56b1ce2390 [ 97.319217][ T5049] R13: 0000000000000000 R14: 00007f56b1ce51c0 R15: 00007f56b1c12470 [ 97.327413][ T5049] [ 97.330541][ T5049] Kernel Offset: disabled [ 97.334865][ T5049] Rebooting in 86400 seconds..