./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor78468 <...> Warning: Permanently added '10.128.10.16' (ECDSA) to the list of known hosts. execve("./syz-executor78468", ["./syz-executor78468"], 0x7ffe168819e0 /* 10 vars */) = 0 brk(NULL) = 0x555555e2d000 brk(0x555555e2dd00) = 0x555555e2dd00 arch_prctl(ARCH_SET_FS, 0x555555e2d3c0) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor78468", 4096) = 23 brk(0x555555e4ed00) = 0x555555e4ed00 brk(0x555555e4f000) = 0x555555e4f000 mprotect(0x7f42bf355000, 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 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 chmod("/dev/raw-gadget", 0666) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f42bf29b4b0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f42bf2a1820}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f42bf29b4b0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f42bf2a1820}, NULL, 8) = 0 getpid() = 3612 mkdir("./syzkaller.yKArOi", 0700) = 0 chmod("./syzkaller.yKArOi", 0777) = 0 chdir("./syzkaller.yKArOi") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3613 attached [pid 3613] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 3612] <... clone resumed>, child_tidptr=0x555555e2d690) = 3613 [pid 3613] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 3613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3613] setsid() = 1 [pid 3613] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3613] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3613] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3613] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3613] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3613] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3613] unshare(CLONE_NEWNS) = 0 [pid 3613] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3613] unshare(CLONE_NEWIPC) = 0 [pid 3613] unshare(CLONE_NEWCGROUP) = 0 [pid 3613] unshare(CLONE_NEWUTS) = 0 [pid 3613] unshare(CLONE_SYSVSEM) = 0 [pid 3613] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "16777216", 8) = 8 [pid 3613] close(3) = 0 [pid 3613] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "536870912", 9) = 9 [pid 3613] close(3) = 0 [pid 3613] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1024", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "8192", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1024", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1024", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3613] close(3) = 0 [pid 3613] getpid() = 1 [pid 3613] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 37.087161][ T3613] dump_stack_lvl+0x1b1/0x28e [ 37.091830][ T3613] ? fortify_panic+0x13/0x13 [ 37.096406][ T3613] ? panic+0x710/0x710 [ 37.100490][ T3613] ? _printk+0xc0/0x100 [ 37.104637][ T3613] ? panic+0x710/0x710 [ 37.108701][ T3613] print_report+0xf1/0x1f0 [ 37.113128][ T3613] ? _raw_spin_lock+0x40/0x40 [ 37.117792][ T3613] ? kthread_stop+0x2a/0x210 [ 37.122367][ T3613] kasan_report+0xc3/0xf0 [ 37.126728][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 37.132705][ T3613] ? kthread_stop+0x2a/0x210 [ 37.137285][ T3613] kasan_check_range+0x2a7/0x2e0 [ 37.142215][ T3613] kthread_stop+0x2a/0x210 [ 37.146623][ T3613] kill_f2fs_super+0xe6/0x3c0 [ 37.151287][ T3613] ? f2fs_mount+0x40/0x40 [ 37.155601][ T3613] ? trace_kfree+0x2d/0xd0 [ 37.160002][ T3613] ? kfree+0x30/0x210 [ 37.163970][ T3613] ? unregister_shrinker+0x261/0x320 [ 37.169236][ T3613] deactivate_locked_super+0xa7/0xf0 [ 37.174504][ T3613] cleanup_mnt+0x4ce/0x560 [ 37.178908][ T3613] task_work_run+0x146/0x1c0 [ 37.183487][ T3613] do_exit+0x6b2/0x2280 [ 37.187636][ T3613] ? __lock_acquire+0x1f60/0x1f60 [ 37.192652][ T3613] ? ptrace_notify+0x245/0x340 [ 37.197406][ T3613] ? mm_update_next_owner+0x6d0/0x6d0 [ 37.202769][ T3613] ? print_irqtrace_events+0x220/0x220 [ 37.208221][ T3613] do_group_exit+0x1fd/0x2b0 [ 37.212799][ T3613] __x64_sys_exit_group+0x3b/0x40 [ 37.217811][ T3613] do_syscall_64+0x3d/0xb0 [ 37.222239][ T3613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 37.228126][ T3613] RIP: 0033:0x7f42bf2e28b9 [ 37.232533][ T3613] Code: Unable to access opcode bytes at 0x7f42bf2e288f. [ 37.239536][ T3613] RSP: 002b:00007ffc2dad9f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 37.247935][ T3613] RAX: ffffffffffffffda RBX: 00007f42bf35b410 RCX: 00007f42bf2e28b9 [ 37.255891][ T3613] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 37.263846][ T3613] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000003031 [ 37.271801][ T3613] R10: 0000000000180020 R11: 0000000000000246 R12: 00007f42bf35b410 [ 37.279769][ T3613] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 37.287817][ T3613] [ 37.290821][ T3613] ================================================================== [ 37.300471][ T3613] Kernel panic - not syncing: panic_on_warn set ... [ 37.307108][ T3613] CPU: 1 PID: 3613 Comm: syz-executor784 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 [ 37.317171][ T3613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.327241][ T3613] Call Trace: [ 37.330510][ T3613] [ 37.333435][ T3613] dump_stack_lvl+0x1b1/0x28e [ 37.338109][ T3613] ? fortify_panic+0x13/0x13 [ 37.342691][ T3613] ? panic+0x710/0x710 [ 37.346756][ T3613] ? preempt_schedule_common+0xb7/0xe0 [ 37.352231][ T3613] ? vscnprintf+0x59/0x80 [ 37.356577][ T3613] panic+0x2d6/0x710 [ 37.360481][ T3613] ? fb_is_primary_device+0xcc/0xcc [ 37.365688][ T3613] ? _raw_spin_unlock_irqrestore+0x110/0x120 [ 37.371676][ T3613] ? print_report+0xf1/0x1f0 [ 37.376259][ T3613] ? _raw_spin_lock+0x40/0x40 [ 37.380930][ T3613] ? kthread_stop+0x2a/0x210 [ 37.385516][ T3613] end_report+0x91/0xa0 [ 37.389667][ T3613] kasan_report+0xd0/0xf0 [ 37.393988][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 37.399967][ T3613] ? kthread_stop+0x2a/0x210 [ 37.404545][ T3613] kasan_check_range+0x2a7/0x2e0 [ 37.409474][ T3613] kthread_stop+0x2a/0x210 [ 37.413895][ T3613] kill_f2fs_super+0xe6/0x3c0 [ 37.418575][ T3613] ? f2fs_mount+0x40/0x40 [ 37.422916][ T3613] ? trace_kfree+0x2d/0xd0 [ 37.427360][ T3613] ? kfree+0x30/0x210 [ 37.431445][ T3613] ? unregister_shrinker+0x261/0x320 [ 37.436764][ T3613] deactivate_locked_super+0xa7/0xf0 [ 37.442154][ T3613] cleanup_mnt+0x4ce/0x560 [ 37.446580][ T3613] task_work_run+0x146/0x1c0 [ 37.451175][ T3613] do_exit+0x6b2/0x2280 [ 37.455330][ T3613] ? __lock_acquire+0x1f60/0x1f60 [ 37.460350][ T3613] ? ptrace_notify+0x245/0x340 [ 37.465105][ T3613] ? mm_update_next_owner+0x6d0/0x6d0 [ 37.470469][ T3613] ? print_irqtrace_events+0x220/0x220 [ 37.475930][ T3613] do_group_exit+0x1fd/0x2b0 [ 37.480512][ T3613] __x64_sys_exit_group+0x3b/0x40 [ 37.485541][ T3613] do_syscall_64+0x3d/0xb0 [ 37.489956][ T3613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 37.495841][ T3613] RIP: 0033:0x7f42bf2e28b9 [ 37.500244][ T3613] Code: Unable to access opcode bytes at 0x7f42bf2e288f. [ 37.507254][ T3613] RSP: 002b:00007ffc2dad9f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 37.515675][ T3613] RAX: ffffffffffffffda RBX: 00007f42bf35b410 RCX: 00007f42bf2e28b9 [ 37.523635][ T3613] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 37.531660][ T3613] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000003031 [ 37.539621][ T3613] R10: 0000000000180020 R11: 0000000000000246 R12: 00007f42bf35b410 [ 37.547601][ T3613] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 37.555567][ T3613] [ 37.558812][ T3613] Kernel Offset: disabled [ 37.563125][ T3613] Rebooting in 86400 seconds..