./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2948906276 <...> Warning: Permanently added '10.128.1.138' (ED25519) to the list of known hosts. execve("./syz-executor2948906276", ["./syz-executor2948906276"], 0x7ffc613a0670 /* 10 vars */) = 0 brk(NULL) = 0x555556607000 brk(0x555556607d00) = 0x555556607d00 arch_prctl(ARCH_SET_FS, 0x555556607380) = 0 set_tid_address(0x555556607650) = 288 set_robust_list(0x555556607660, 24) = 0 rseq(0x555556607ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2948906276", 4096) = 28 getrandom("\x37\x50\xa3\x95\x33\x7d\xf6\xb9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556607d00 brk(0x555556628d00) = 0x555556628d00 brk(0x555556629000) = 0x555556629000 mprotect(0x7f3e1df2c000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 289 ./strace-static-x86_64: Process 289 attached [pid 289] set_robust_list(0x555556607660, 24) = 0 [pid 289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 289] setpgid(0, 0) = 0 [pid 289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 289] write(3, "1000", 4) = 4 [pid 289] close(3) = 0 [pid 289] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 289] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 289] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 289] write(4, "77", 2) = 2 [ 22.171150][ T24] audit: type=1400 audit(1694283568.280:66): avc: denied { execmem } for pid=288 comm="syz-executor294" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.181947][ T24] audit: type=1400 audit(1694283568.290:67): avc: denied { read } for pid=289 comm="syz-executor294" name="loop-control" dev="devtmpfs" ino=110 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 22.186110][ T24] audit: type=1400 audit(1694283568.290:68): avc: denied { open } for pid=289 comm="syz-executor294" path="/dev/loop-control" dev="devtmpfs" ino=110 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 22.190651][ T24] audit: type=1400 audit(1694283568.300:69): avc: denied { ioctl } for pid=289 comm="syz-executor294" path="/dev/loop-control" dev="devtmpfs" ino=110 ioctlcmd=0x4c81 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 22.230480][ T289] FAULT_INJECTION: forcing a failure. [ 22.230480][ T289] name failslab, interval 1, probability 0, space 0, times 1 [ 22.243617][ T289] CPU: 0 PID: 289 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 22.253663][ T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 22.263642][ T289] Call Trace: [ 22.266789][ T289] dump_stack_lvl+0x1e2/0x24b [ 22.271291][ T289] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.276678][ T289] dump_stack+0x15/0x17 [ 22.280658][ T289] should_fail+0x3c6/0x510 [ 22.284919][ T289] ? security_inode_alloc+0x29/0x120 [ 22.290053][ T289] __should_failslab+0xa4/0xe0 [ 22.294869][ T289] should_failslab+0x9/0x20 [ 22.299283][ T289] kmem_cache_alloc+0x3d/0x2e0 [ 22.303969][ T289] ? from_kuid_munged+0x7b0/0x7b0 [ 22.308819][ T289] security_inode_alloc+0x29/0x120 [ 22.313780][ T289] inode_init_always+0x767/0x9f0 [ 22.318657][ T289] new_inode_pseudo+0x93/0x220 [ 22.323249][ T289] new_inode+0x28/0x1c0 [ 22.327592][ T289] ? start_creating+0x1d4/0x2f0 [ 22.332260][ T289] debugfs_create_dir+0xf4/0x450 [ 22.338173][ T289] ? number+0xb5a/0xf80 [ 22.342555][ T289] bdi_register_va+0x25b/0x610 [ 22.347262][ T289] bdi_register+0xd1/0x120 [ 22.351527][ T289] ? vsnprintf+0x1e1/0x1c70 [ 22.355932][ T289] ? __device_add_disk+0x552/0x11a0 [ 22.361052][ T289] ? bdi_register_va+0x610/0x610 [ 22.365828][ T289] ? __kasan_check_read+0x11/0x20 [ 22.370793][ T289] ? blk_alloc_devt+0xd7/0x330 [ 22.375467][ T289] __device_add_disk+0x5de/0x11a0 [ 22.380463][ T289] ? device_add_disk+0x40/0x40 [ 22.385127][ T289] ? vsprintf+0x40/0x40 [ 22.389114][ T289] ? device_initialize+0x1e1/0x420 [ 22.394090][ T289] device_add_disk+0x2a/0x40 [ 22.398480][ T289] loop_add+0x580/0x750 [ 22.402471][ T289] loop_control_ioctl+0x448/0x620 [ 22.407327][ T289] ? loop_remove+0xb0/0xb0 [ 22.411581][ T289] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.416615][ T289] ? ptrace_notify+0x24c/0x350 [ 22.421218][ T289] ? do_notify_parent+0xa10/0xa10 [ 22.426257][ T289] ? security_file_ioctl+0x84/0xb0 [ 22.431316][ T289] ? loop_remove+0xb0/0xb0 [ 22.435566][ T289] __se_sys_ioctl+0x114/0x190 [ 22.440422][ T289] __x64_sys_ioctl+0x7b/0x90 [ 22.444859][ T289] do_syscall_64+0x34/0x70 [ 22.449102][ T289] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.454832][ T289] RIP: 0033:0x7f3e1deb8d39 [ 22.459254][ T289] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 22.478987][ T289] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.487467][ T289] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 22.495281][ T289] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.503174][ T289] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [ 22.511032][ T289] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001 [ 22.518797][ T289] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 289] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 289] exit_group(0) = ? [pid 289] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=289, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 292 ./strace-static-x86_64: Process 292 attached [pid 292] set_robust_list(0x555556607660, 24) = 0 [pid 292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 292] setpgid(0, 0) = 0 [pid 292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 292] write(3, "1000", 4) = 4 [pid 292] close(3) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 22.529214][ T289] debugfs: out of free dentries, can not create directory '7:0' [pid 292] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 292] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 292] write(4, "77", 2) = 2 [ 22.590073][ T292] FAULT_INJECTION: forcing a failure. [ 22.590073][ T292] name failslab, interval 1, probability 0, space 0, times 0 [ 22.602777][ T292] CPU: 0 PID: 292 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 22.612818][ T292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 22.622700][ T292] Call Trace: [ 22.625838][ T292] dump_stack_lvl+0x1e2/0x24b [ 22.630347][ T292] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.635633][ T292] dump_stack+0x15/0x17 [ 22.639627][ T292] should_fail+0x3c6/0x510 [ 22.643878][ T292] ? kobject_get_path+0xb4/0x190 [ 22.648654][ T292] __should_failslab+0xa4/0xe0 [ 22.653251][ T292] should_failslab+0x9/0x20 [ 22.657590][ T292] __kmalloc+0x60/0x330 [ 22.661588][ T292] kobject_get_path+0xb4/0x190 [ 22.666183][ T292] kobject_uevent_env+0x27f/0x700 [ 22.671045][ T292] ? __kasan_check_write+0x14/0x20 [ 22.675993][ T292] kobject_uevent+0x1f/0x30 [ 22.680331][ T292] device_add+0x791/0xbc0 [ 22.684498][ T292] device_create+0x259/0x2e0 [ 22.688929][ T292] ? root_device_unregister+0x80/0x80 [ 22.694131][ T292] ? memset+0x35/0x40 [ 22.697947][ T292] ? number+0xb5a/0xf80 [ 22.701944][ T292] bdi_register_va+0x93/0x610 [ 22.706457][ T292] bdi_register+0xd1/0x120 [ 22.710710][ T292] ? vsnprintf+0x1e1/0x1c70 [ 22.715048][ T292] ? __device_add_disk+0x552/0x11a0 [ 22.720087][ T292] ? bdi_register_va+0x610/0x610 [ 22.724873][ T292] ? __kasan_check_read+0x11/0x20 [ 22.729817][ T292] ? blk_alloc_devt+0xd7/0x330 [ 22.734409][ T292] __device_add_disk+0x5de/0x11a0 [ 22.739283][ T292] ? device_add_disk+0x40/0x40 [ 22.743865][ T292] ? vsprintf+0x40/0x40 [ 22.747865][ T292] ? device_initialize+0x1e1/0x420 [ 22.752803][ T292] device_add_disk+0x2a/0x40 [ 22.757244][ T292] loop_add+0x580/0x750 [ 22.761225][ T292] loop_control_ioctl+0x448/0x620 [ 22.766087][ T292] ? loop_remove+0xb0/0xb0 [ 22.770428][ T292] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.775456][ T292] ? ptrace_notify+0x24c/0x350 [ 22.780118][ T292] ? do_notify_parent+0xa10/0xa10 [ 22.784917][ T292] ? security_file_ioctl+0x84/0xb0 [ 22.789872][ T292] ? loop_remove+0xb0/0xb0 [ 22.795272][ T292] __se_sys_ioctl+0x114/0x190 [ 22.799759][ T292] __x64_sys_ioctl+0x7b/0x90 [ 22.804190][ T292] do_syscall_64+0x34/0x70 [ 22.808437][ T292] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.814295][ T292] RIP: 0033:0x7f3e1deb8d39 [ 22.818520][ T292] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 292] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 292] exit_group(0) = ? [pid 292] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=292, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 293 ./strace-static-x86_64: Process 293 attached [pid 293] set_robust_list(0x555556607660, 24) = 0 [pid 293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 293] setpgid(0, 0) = 0 [pid 293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] write(3, "1000", 4) = 4 [pid 293] close(3) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 293] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 293] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 293] write(4, "77", 2) = 2 [ 22.838050][ T292] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.846293][ T292] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 22.854105][ T292] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.861916][ T292] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [ 22.869727][ T292] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [ 22.877640][ T292] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 22.920287][ T293] FAULT_INJECTION: forcing a failure. [ 22.920287][ T293] name failslab, interval 1, probability 0, space 0, times 0 [ 22.933113][ T293] CPU: 0 PID: 293 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 22.943279][ T293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 22.953179][ T293] Call Trace: [ 22.956303][ T293] dump_stack_lvl+0x1e2/0x24b [ 22.960809][ T293] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.966196][ T293] ? stack_trace_save+0x113/0x1c0 [ 22.971062][ T293] dump_stack+0x15/0x17 [ 22.975038][ T293] should_fail+0x3c6/0x510 [ 22.979293][ T293] ? __d_alloc+0x2d/0x6c0 [ 22.983455][ T293] __should_failslab+0xa4/0xe0 [ 22.988146][ T293] should_failslab+0x9/0x20 [ 22.992488][ T293] kmem_cache_alloc+0x3d/0x2e0 [ 22.997083][ T293] __d_alloc+0x2d/0x6c0 [ 23.001077][ T293] d_alloc_parallel+0xe7/0x12f0 [ 23.005761][ T293] ? avc_denied+0x1b0/0x1b0 [ 23.010102][ T293] ? slab_post_alloc_hook+0x61/0x2f0 [ 23.017759][ T293] ? selinux_inode_permission+0x449/0x690 [ 23.023292][ T293] ? d_hash_and_lookup+0x1e0/0x1e0 [ 23.028241][ T293] ? selinux_inode_follow_link+0x3c0/0x3c0 [ 23.033895][ T293] ? __kasan_check_write+0x14/0x20 [ 23.038829][ T293] ? _raw_spin_lock+0xa4/0x1b0 [ 23.043432][ T293] ? _raw_spin_trylock_bh+0x190/0x190 [ 23.048635][ T293] ? lockref_put_or_lock+0x1f6/0x2b0 [ 23.053756][ T293] __lookup_slow+0x154/0x400 [ 23.058182][ T293] ? lookup_one_len+0x2c0/0x2c0 [ 23.062869][ T293] ? lookup_one_len_common+0x2f1/0x450 [ 23.068163][ T293] lookup_one_len+0x180/0x2c0 [ 23.072679][ T293] ? __kasan_check_write+0x14/0x20 [ 23.077625][ T293] ? lookup_one_len_common+0x450/0x450 [ 23.082929][ T293] ? simple_pin_fs+0x99/0x160 [ 23.087547][ T293] start_creating+0x161/0x2f0 [ 23.092053][ T293] __debugfs_create_file+0x75/0x4c0 [ 23.097094][ T293] ? up_write+0x59/0x120 [ 23.101163][ T293] debugfs_create_file+0x4a/0x60 [ 23.105935][ T293] bdi_register_va+0x2a6/0x610 [ 23.110537][ T293] bdi_register+0xd1/0x120 [ 23.114790][ T293] ? vsnprintf+0x1e1/0x1c70 [ 23.119126][ T293] ? __device_add_disk+0x552/0x11a0 [ 23.124161][ T293] ? bdi_register_va+0x610/0x610 [ 23.128941][ T293] ? __kasan_check_read+0x11/0x20 [ 23.133798][ T293] ? blk_alloc_devt+0xd7/0x330 [ 23.138397][ T293] __device_add_disk+0x5de/0x11a0 [ 23.143257][ T293] ? device_add_disk+0x40/0x40 [ 23.147858][ T293] ? vsprintf+0x40/0x40 [ 23.151962][ T293] ? device_initialize+0x1e1/0x420 [ 23.156884][ T293] device_add_disk+0x2a/0x40 [ 23.161318][ T293] loop_add+0x580/0x750 [ 23.165306][ T293] loop_control_ioctl+0x448/0x620 [ 23.170163][ T293] ? loop_remove+0xb0/0xb0 [ 23.174418][ T293] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.179458][ T293] ? ptrace_notify+0x24c/0x350 [ 23.184053][ T293] ? do_notify_parent+0xa10/0xa10 [ 23.188925][ T293] ? security_file_ioctl+0x84/0xb0 [ 23.193942][ T293] ? loop_remove+0xb0/0xb0 [ 23.198197][ T293] __se_sys_ioctl+0x114/0x190 [ 23.202713][ T293] __x64_sys_ioctl+0x7b/0x90 [ 23.207139][ T293] do_syscall_64+0x34/0x70 [ 23.211393][ T293] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.217209][ T293] RIP: 0033:0x7f3e1deb8d39 [ 23.221456][ T293] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 23.240896][ T293] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.249141][ T293] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 23.256954][ T293] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [pid 293] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 293] exit_group(0) = ? [pid 293] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=293, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 295 ./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x555556607660, 24) = 0 [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setpgid(0, 0) = 0 [pid 295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] write(3, "1000", 4) = 4 [pid 295] close(3) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 23.264764][ T293] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [ 23.272661][ T293] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [ 23.280820][ T293] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 295] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 295] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 295] write(4, "77", 2) = 2 [ 23.339668][ T295] FAULT_INJECTION: forcing a failure. [ 23.339668][ T295] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 23.352761][ T295] CPU: 1 PID: 295 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 23.362755][ T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 23.372631][ T295] Call Trace: [ 23.375771][ T295] dump_stack_lvl+0x1e2/0x24b [ 23.380631][ T295] ? bfq_pos_tree_add_move+0x43b/0x43b [ 23.385919][ T295] dump_stack+0x15/0x17 [ 23.389919][ T295] should_fail+0x3c6/0x510 [ 23.394164][ T295] should_fail_alloc_page+0x52/0x60 [ 23.399216][ T295] __alloc_pages_nodemask+0x1b3/0xaf0 [ 23.404437][ T295] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 23.409874][ T295] ? __kasan_check_write+0x14/0x20 [ 23.414828][ T295] ? lockref_get+0x184/0x220 [ 23.419249][ T295] ? __kasan_check_write+0x14/0x20 [ 23.424192][ T295] __get_free_pages+0xe/0x30 [ 23.428716][ T295] selinux_genfs_get_sid+0x56/0x2a0 [ 23.433739][ T295] inode_doinit_with_dentry+0x86f/0x1050 [ 23.439341][ T295] ? sb_finish_set_opts+0x7a0/0x7a0 [ 23.444371][ T295] ? current_time+0x1af/0x2f0 [ 23.448962][ T295] selinux_d_instantiate+0x27/0x40 [ 23.454032][ T295] security_d_instantiate+0x9f/0x100 [ 23.459146][ T295] d_instantiate+0x55/0x90 [ 23.463393][ T295] __debugfs_create_file+0x2e6/0x4c0 [ 23.468613][ T295] debugfs_create_file+0x4a/0x60 [ 23.473391][ T295] bdi_register_va+0x2a6/0x610 [ 23.478023][ T295] bdi_register+0xd1/0x120 [ 23.482241][ T295] ? vsnprintf+0x1e1/0x1c70 [ 23.486587][ T295] ? __device_add_disk+0x552/0x11a0 [ 23.491613][ T295] ? bdi_register_va+0x610/0x610 [ 23.496393][ T295] ? __kasan_check_read+0x11/0x20 [ 23.501243][ T295] ? blk_alloc_devt+0xd7/0x330 [ 23.505842][ T295] __device_add_disk+0x5de/0x11a0 [ 23.510727][ T295] ? device_add_disk+0x40/0x40 [ 23.515304][ T295] ? vsprintf+0x40/0x40 [ 23.519309][ T295] ? device_initialize+0x1e1/0x420 [ 23.524303][ T295] device_add_disk+0x2a/0x40 [ 23.528675][ T295] loop_add+0x580/0x750 [ 23.532661][ T295] loop_control_ioctl+0x448/0x620 [ 23.537520][ T295] ? loop_remove+0xb0/0xb0 [ 23.541773][ T295] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.546815][ T295] ? ptrace_notify+0x24c/0x350 [ 23.551931][ T295] ? do_notify_parent+0xa10/0xa10 [ 23.556787][ T295] ? security_file_ioctl+0x84/0xb0 [ 23.561736][ T295] ? loop_remove+0xb0/0xb0 [ 23.565993][ T295] __se_sys_ioctl+0x114/0x190 [ 23.570503][ T295] __x64_sys_ioctl+0x7b/0x90 [ 23.574930][ T295] do_syscall_64+0x34/0x70 [ 23.579212][ T295] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.584934][ T295] RIP: 0033:0x7f3e1deb8d39 [ 23.589162][ T295] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 23.608716][ T295] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.616970][ T295] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 23.624769][ T295] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.632580][ T295] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [pid 295] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 295] exit_group(0) = ? [pid 295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=295, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 296 attached , child_tidptr=0x555556607650) = 296 [pid 296] set_robust_list(0x555556607660, 24) = 0 [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] setpgid(0, 0) = 0 [pid 296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 296] write(3, "1000", 4) = 4 [pid 296] close(3) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 296] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 296] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 296] write(4, "77", 2) = 2 [ 23.640392][ T295] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [ 23.648200][ T295] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 23.689907][ T296] FAULT_INJECTION: forcing a failure. [ 23.689907][ T296] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 23.703085][ T296] CPU: 0 PID: 296 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 23.713117][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 23.723013][ T296] Call Trace: [ 23.726143][ T296] dump_stack_lvl+0x1e2/0x24b [ 23.730656][ T296] ? bfq_pos_tree_add_move+0x43b/0x43b [ 23.735942][ T296] dump_stack+0x15/0x17 [ 23.739939][ T296] should_fail+0x3c6/0x510 [ 23.744378][ T296] should_fail_alloc_page+0x52/0x60 [ 23.749405][ T296] __alloc_pages_nodemask+0x1b3/0xaf0 [ 23.754617][ T296] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 23.759993][ T296] ? __kasan_check_write+0x14/0x20 [ 23.764939][ T296] ? lockref_get+0x184/0x220 [ 23.769364][ T296] ? __kasan_check_write+0x14/0x20 [ 23.774322][ T296] __get_free_pages+0xe/0x30 [ 23.778742][ T296] selinux_genfs_get_sid+0x56/0x2a0 [ 23.783801][ T296] inode_doinit_with_dentry+0x86f/0x1050 [ 23.789243][ T296] ? sb_finish_set_opts+0x7a0/0x7a0 [ 23.794513][ T296] ? current_time+0x1af/0x2f0 [ 23.799031][ T296] selinux_d_instantiate+0x27/0x40 [ 23.803968][ T296] security_d_instantiate+0x9f/0x100 [ 23.809085][ T296] d_instantiate+0x55/0x90 [ 23.813344][ T296] __debugfs_create_file+0x2e6/0x4c0 [ 23.818463][ T296] debugfs_create_file+0x4a/0x60 [ 23.823236][ T296] bdi_register_va+0x2a6/0x610 [ 23.827847][ T296] bdi_register+0xd1/0x120 [ 23.832088][ T296] ? vsnprintf+0x1e1/0x1c70 [ 23.836433][ T296] ? __device_add_disk+0x552/0x11a0 [ 23.841472][ T296] ? bdi_register_va+0x610/0x610 [ 23.846253][ T296] ? __kasan_check_read+0x11/0x20 [ 23.851104][ T296] ? blk_alloc_devt+0xd7/0x330 [ 23.855700][ T296] __device_add_disk+0x5de/0x11a0 [ 23.860559][ T296] ? device_add_disk+0x40/0x40 [ 23.865182][ T296] ? vsprintf+0x40/0x40 [ 23.869241][ T296] ? device_initialize+0x1e1/0x420 [ 23.874274][ T296] device_add_disk+0x2a/0x40 [ 23.878696][ T296] loop_add+0x580/0x750 [ 23.882691][ T296] loop_control_ioctl+0x448/0x620 [ 23.887545][ T296] ? loop_remove+0xb0/0xb0 [ 23.891805][ T296] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.896842][ T296] ? ptrace_notify+0x24c/0x350 [ 23.901436][ T296] ? do_notify_parent+0xa10/0xa10 [ 23.906306][ T296] ? security_file_ioctl+0x84/0xb0 [ 23.911256][ T296] ? loop_remove+0xb0/0xb0 [ 23.915752][ T296] __se_sys_ioctl+0x114/0x190 [ 23.921051][ T296] __x64_sys_ioctl+0x7b/0x90 [ 23.925477][ T296] do_syscall_64+0x34/0x70 [ 23.929730][ T296] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.935455][ T296] RIP: 0033:0x7f3e1deb8d39 [ 23.939817][ T296] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 23.959341][ T296] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.967582][ T296] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 23.975416][ T296] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [pid 296] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 296] exit_group(0) = ? [pid 296] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=296, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x555556607660, 24) = 0 [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] setpgid(0, 0) = 0 [pid 297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] write(3, "1000", 4) = 4 [pid 297] close(3) = 0 [pid 297] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 297] ioctl(3, LOOP_CTL_REMOVE, 0) = -1 EBUSY (Device or resource busy) [pid 297] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 297] write(4, "77", 2) = 2 [pid 297] ioctl(3, LOOP_CTL_ADD, 0) = -1 EEXIST (File exists) [pid 297] exit_group(0) = ? [pid 297] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=297, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 298 ./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x555556607660, 24) = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] write(3, "1000", 4) = 4 [pid 298] close(3) = 0 [pid 298] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 298] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 298] write(4, "77", 2) = 2 [ 23.983463][ T296] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [ 23.991280][ T296] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [ 23.999183][ T296] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 24.041970][ T298] FAULT_INJECTION: forcing a failure. [ 24.041970][ T298] name failslab, interval 1, probability 0, space 0, times 0 [ 24.054869][ T298] CPU: 1 PID: 298 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 24.064924][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 24.074812][ T298] Call Trace: [ 24.077940][ T298] dump_stack_lvl+0x1e2/0x24b [ 24.082446][ T298] ? panic+0x80b/0x80b [ 24.086352][ T298] ? bfq_pos_tree_add_move+0x43b/0x43b [ 24.091643][ T298] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 24.096509][ T298] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 24.101550][ T298] dump_stack+0x15/0x17 [ 24.106322][ T298] should_fail+0x3c6/0x510 [ 24.110581][ T298] ? kobj_map+0x64/0x670 [ 24.114645][ T298] __should_failslab+0xa4/0xe0 [ 24.119245][ T298] should_failslab+0x9/0x20 [ 24.123590][ T298] __kmalloc+0x60/0x330 [ 24.127588][ T298] ? __device_add_disk+0x552/0x11a0 [ 24.132619][ T298] kobj_map+0x64/0x670 [ 24.136520][ T298] ? kobject_get+0xd1/0x120 [ 24.140857][ T298] ? exact_match+0x20/0x20 [ 24.145112][ T298] ? bdev_check_media_change+0x4d0/0x4d0 [ 24.150590][ T298] __device_add_disk+0x67b/0x11a0 [ 24.155441][ T298] ? device_add_disk+0x40/0x40 [ 24.160044][ T298] ? vsprintf+0x40/0x40 [ 24.164040][ T298] ? device_initialize+0x1e1/0x420 [ 24.169087][ T298] device_add_disk+0x2a/0x40 [ 24.173782][ T298] loop_add+0x580/0x750 [ 24.177869][ T298] loop_control_ioctl+0x448/0x620 [ 24.182729][ T298] ? loop_remove+0xb0/0xb0 [ 24.186987][ T298] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.192016][ T298] ? ptrace_notify+0x24c/0x350 [ 24.196607][ T298] ? do_notify_parent+0xa10/0xa10 [ 24.201470][ T298] ? security_file_ioctl+0x84/0xb0 [ 24.206413][ T298] ? loop_remove+0xb0/0xb0 [ 24.210771][ T298] __se_sys_ioctl+0x114/0x190 [ 24.215415][ T298] __x64_sys_ioctl+0x7b/0x90 [ 24.219843][ T298] do_syscall_64+0x34/0x70 [ 24.224169][ T298] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.229898][ T298] RIP: 0033:0x7f3e1deb8d39 [ 24.234147][ T298] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 24.253803][ T298] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.262035][ T298] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 24.270199][ T298] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 24.278002][ T298] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [pid 298] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 298] exit_group(0) = ? [pid 298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=298, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 300 ./strace-static-x86_64: Process 300 attached [pid 300] set_robust_list(0x555556607660, 24) = 0 [pid 300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] setpgid(0, 0) = 0 [pid 300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] write(3, "1000", 4) = 4 [pid 300] close(3) = 0 [pid 300] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 24.285809][ T298] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [ 24.293617][ T298] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 300] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 300] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 300] write(4, "77", 2) = 2 [ 24.362384][ T300] FAULT_INJECTION: forcing a failure. [ 24.362384][ T300] name failslab, interval 1, probability 0, space 0, times 0 [ 24.375029][ T300] CPU: 0 PID: 300 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 24.385086][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 24.394964][ T300] Call Trace: [ 24.398110][ T300] dump_stack_lvl+0x1e2/0x24b [ 24.402610][ T300] ? bfq_pos_tree_add_move+0x43b/0x43b [ 24.407904][ T300] ? ____kasan_kmalloc+0xed/0x110 [ 24.412764][ T300] ? kobj_map+0x64/0x670 [ 24.416839][ T300] ? device_add_disk+0x2a/0x40 [ 24.421442][ T300] ? loop_add+0x580/0x750 [ 24.425607][ T300] ? loop_control_ioctl+0x448/0x620 [ 24.430784][ T300] ? __x64_sys_ioctl+0x7b/0x90 [ 24.435378][ T300] dump_stack+0x15/0x17 [ 24.439376][ T300] should_fail+0x3c6/0x510 [ 24.443624][ T300] ? kvasprintf_const+0x13b/0x190 [ 24.448497][ T300] __should_failslab+0xa4/0xe0 [ 24.453099][ T300] should_failslab+0x9/0x20 [ 24.457424][ T300] __kmalloc_track_caller+0x5f/0x320 [ 24.462560][ T300] kstrdup_const+0x55/0x90 [ 24.466804][ T300] kvasprintf_const+0x13b/0x190 [ 24.471495][ T300] kobject_set_name_vargs+0x61/0x120 [ 24.476606][ T300] dev_set_name+0xd1/0x120 [ 24.480855][ T300] ? __kasan_kmalloc+0x9/0x10 [ 24.485378][ T300] ? get_device+0x30/0x30 [ 24.489542][ T300] ? mutex_unlock+0x1c/0x40 [ 24.493878][ T300] ? kobj_map+0x62f/0x670 [ 24.498046][ T300] __device_add_disk+0x703/0x11a0 [ 24.502902][ T300] ? device_add_disk+0x40/0x40 [ 24.507501][ T300] ? vsprintf+0x40/0x40 [ 24.511500][ T300] ? device_initialize+0x1e1/0x420 [ 24.516439][ T300] device_add_disk+0x2a/0x40 [ 24.520950][ T300] loop_add+0x580/0x750 [ 24.524947][ T300] loop_control_ioctl+0x448/0x620 [ 24.529808][ T300] ? loop_remove+0xb0/0xb0 [ 24.534062][ T300] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.539116][ T300] ? ptrace_notify+0x24c/0x350 [ 24.543782][ T300] ? do_notify_parent+0xa10/0xa10 [ 24.548649][ T300] ? security_file_ioctl+0x84/0xb0 [ 24.553585][ T300] ? loop_remove+0xb0/0xb0 [ 24.557925][ T300] __se_sys_ioctl+0x114/0x190 [ 24.562443][ T300] __x64_sys_ioctl+0x7b/0x90 [ 24.566875][ T300] do_syscall_64+0x34/0x70 [ 24.571162][ T300] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.576844][ T300] RIP: 0033:0x7f3e1deb8d39 [ 24.581102][ T300] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 24.600539][ T300] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.608880][ T300] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 24.616684][ T300] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 24.624489][ T300] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [ 24.632652][ T300] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [ 24.640555][ T300] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 24.648820][ T300] kobject_add_internal failed for queue (error: -2 parent: (null)) [ 24.656574][ T300] ------------[ cut here ]------------ [ 24.661971][ T300] WARNING: CPU: 0 PID: 300 at fs/sysfs/file.c:328 sysfs_create_files+0x325/0x470 [ 24.670871][ T300] Modules linked in: [ 24.674569][ T300] CPU: 0 PID: 300 Comm: syz-executor294 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 24.685123][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 24.695211][ T300] RIP: 0010:sysfs_create_files+0x325/0x470 [ 24.700914][ T300] Code: c1 03 38 c1 0f 8c b7 fe ff ff 48 8d 7c 24 70 e8 71 b3 d4 ff e9 a8 fe ff ff e8 07 5f 97 ff 31 db e9 ef 00 00 00 e8 fb 5e 97 ff <0f> 0b bb ea ff ff ff 4c 8b 74 24 08 eb 17 85 db 0f 84 cf 00 00 00 [ 24.721144][ T300] RSP: 0018:ffffc90000b37b00 EFLAGS: 00010293 [ 24.727066][ T300] RAX: ffffffff81d34268 RBX: ffff888107998098 RCX: ffff88811e734f00 [ 24.735207][ T300] RDX: 0000000000000000 RSI: ffffffff86950cc0 RDI: ffff888107998068 [ 24.743055][ T300] RBP: ffffc90000b37bd0 R08: ffffffff826f7757 R09: ffffed1023cf2af4 [ 24.750878][ T300] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 24.758767][ T300] R13: ffffffff855f5a60 R14: dffffc0000000000 R15: ffff888107998068 [ 24.766742][ T300] FS: 0000555556607380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.775624][ T300] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.782049][ T300] CR2: 00007f3e1ded046c CR3: 000000011ea85000 CR4: 00000000003506b0 [ 24.790317][ T300] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.798174][ T300] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.805916][ T300] Call Trace: [ 24.809120][ T300] ? show_regs+0x58/0x60 [ 24.813138][ T300] ? __warn+0x160/0x2f0 [ 24.817211][ T300] ? sysfs_create_files+0x325/0x470 [ 24.822325][ T300] ? report_bug+0x3d9/0x5b0 [ 24.826599][ T300] ? sysfs_create_files+0x325/0x470 [ 24.831657][ T300] ? handle_bug+0x41/0x70 [ 24.836090][ T300] ? exc_invalid_op+0x1b/0x50 [ 24.840845][ T300] ? asm_exc_invalid_op+0x12/0x20 [ 24.845702][ T300] ? kobject_get+0xc7/0x120 [ 24.850504][ T300] ? sysfs_create_files+0x458/0x470 [ 24.855643][ T300] ? sysfs_create_files+0x325/0x470 [ 24.860876][ T300] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 24.866395][ T300] ? __kasan_check_write+0x14/0x20 [ 24.871391][ T300] ? kobject_get+0xd1/0x120 [ 24.875694][ T300] __device_add_disk+0x9a7/0x11a0 [ 24.880579][ T300] ? device_add_disk+0x40/0x40 [ 24.885262][ T300] ? vsprintf+0x40/0x40 [ 24.889272][ T300] ? device_initialize+0x1e1/0x420 [ 24.894173][ T300] device_add_disk+0x2a/0x40 [ 24.898636][ T300] loop_add+0x580/0x750 [ 24.902593][ T300] loop_control_ioctl+0x448/0x620 [ 24.907539][ T300] ? loop_remove+0xb0/0xb0 [ 24.911914][ T300] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.917124][ T300] ? ptrace_notify+0x24c/0x350 [ 24.921796][ T300] ? do_notify_parent+0xa10/0xa10 [ 24.926584][ T300] ? security_file_ioctl+0x84/0xb0 [ 24.931586][ T300] ? loop_remove+0xb0/0xb0 [ 24.935980][ T300] __se_sys_ioctl+0x114/0x190 [ 24.940542][ T300] __x64_sys_ioctl+0x7b/0x90 [ 24.944999][ T300] do_syscall_64+0x34/0x70 [ 24.949282][ T300] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.954970][ T300] RIP: 0033:0x7f3e1deb8d39 [ 24.959269][ T300] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 24.978789][ T300] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.987105][ T300] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 24.994936][ T300] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.002841][ T300] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [ 25.010643][ T300] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [ 25.018443][ T300] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.026401][ T300] ---[ end trace 08aad3ffe8ebf0d5 ]--- [ 25.031735][ T300] ------------[ cut here ]------------ [ 25.037090][ T300] kernfs: can not remove 'events', no directory [ 25.043284][ T300] WARNING: CPU: 0 PID: 300 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 25.053097][ T300] Modules linked in: [ 25.056880][ T300] CPU: 0 PID: 300 Comm: syz-executor294 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 25.068546][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 25.079136][ T300] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 25.085268][ T300] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 25.104929][ T300] RSP: 0018:ffffc90000b37ad8 EFLAGS: 00010246 [ 25.110809][ T300] RAX: b956cab46725e900 RBX: 0000000000000000 RCX: ffff88811e734f00 [ 25.118618][ T300] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 25.126867][ T300] RBP: ffffc90000b37af0 R08: ffffffff81521888 R09: fffff52000166e71 [ 25.134898][ T300] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 25.142970][ T300] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff855f5b20 [ 25.150868][ T300] FS: 0000555556607380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.159821][ T300] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.166248][ T300] CR2: 00007f3e1ded046c CR3: 000000011ea85000 CR4: 00000000003506b0 [ 25.174282][ T300] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.182277][ T300] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.190069][ T300] Call Trace: [ 25.193265][ T300] ? show_regs+0x58/0x60 [ 25.197439][ T300] ? __warn+0x160/0x2f0 [ 25.201475][ T300] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.206900][ T300] ? report_bug+0x3d9/0x5b0 [ 25.211272][ T300] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.216794][ T300] ? handle_bug+0x41/0x70 [ 25.220984][ T300] ? exc_invalid_op+0x1b/0x50 [ 25.225462][ T300] ? asm_exc_invalid_op+0x12/0x20 [ 25.230354][ T300] ? wake_up_klogd+0xb8/0xf0 [ 25.234748][ T300] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.240280][ T300] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.245695][ T300] sysfs_create_files+0x3de/0x470 [ 25.250683][ T300] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 25.255851][ T300] ? __kasan_check_write+0x14/0x20 [ 25.260831][ T300] ? kobject_get+0xd1/0x120 [ 25.265126][ T300] __device_add_disk+0x9a7/0x11a0 [ 25.270029][ T300] ? device_add_disk+0x40/0x40 [ 25.275477][ T300] ? vsprintf+0x40/0x40 [ 25.279636][ T300] ? device_initialize+0x1e1/0x420 [ 25.284549][ T300] device_add_disk+0x2a/0x40 [ 25.289021][ T300] loop_add+0x580/0x750 [ 25.293328][ T300] loop_control_ioctl+0x448/0x620 [ 25.298594][ T300] ? loop_remove+0xb0/0xb0 [ 25.303239][ T300] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.308653][ T300] ? ptrace_notify+0x24c/0x350 [ 25.313195][ T300] ? do_notify_parent+0xa10/0xa10 [ 25.318317][ T300] ? security_file_ioctl+0x84/0xb0 [ 25.323189][ T300] ? loop_remove+0xb0/0xb0 [ 25.327518][ T300] __se_sys_ioctl+0x114/0x190 [ 25.332072][ T300] __x64_sys_ioctl+0x7b/0x90 [ 25.336562][ T300] do_syscall_64+0x34/0x70 [ 25.341115][ T300] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 25.346794][ T300] RIP: 0033:0x7f3e1deb8d39 [ 25.351155][ T300] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 25.370852][ T300] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.379131][ T300] RAX: ffffffffffffffda RBX: 00007ffd2a501680 RCX: 00007f3e1deb8d39 [ 25.386885][ T300] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.394833][ T300] RBP: 0000000000000002 R08: 00007ffd2a501406 R09: 00000000000000a0 [ 25.402776][ T300] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd2a50167c [pid 300] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 300] exit_group(0) = ? [pid 300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=300, si_uid=0, si_status=0, si_utime=0, si_stime=74} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556607650) = 302 ./strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x555556607660, 24) = 0 [pid 302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 302] setpgid(0, 0) = 0 [pid 302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 302] write(3, "1000", 4) = 4 [pid 302] close(3) = 0 [pid 302] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 25.410583][ T300] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.418379][ T300] ---[ end trace 08aad3ffe8ebf0d6 ]--- [ 25.423733][ T300] loop0: failed to create sysfs files for events [ 25.435384][ T302] ------------[ cut here ]------------ [ 25.440844][ T302] kernfs: can not remove 'events', no directory [ 25.446965][ T302] WARNING: CPU: 1 PID: 302 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 25.456541][ T302] Modules linked in: [ 25.460335][ T302] CPU: 0 PID: 302 Comm: syz-executor294 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 25.471966][ T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 25.482164][ T302] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 25.488417][ T302] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 25.508295][ T302] RSP: 0018:ffffc90000b37c18 EFLAGS: 00010246 [ 25.514321][ T302] RAX: ce7f7242b86bc000 RBX: 0000000000000000 RCX: ffff8881075e3b40 [ 25.522355][ T302] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 25.530426][ T302] RBP: ffffc90000b37c30 R08: ffffffff81521888 R09: ffffed103ee24e93 [ 25.538331][ T302] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 25.546118][ T302] R13: ffffffff86950cc0 R14: 0000000000000000 R15: ffffffff855f5b20 [ 25.554100][ T302] FS: 0000555556607380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.562969][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.569617][ T302] CR2: 00007f3e1df300d0 CR3: 000000011ea89000 CR4: 00000000003506a0 [ 25.578343][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.586219][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.594389][ T302] Call Trace: [ 25.597575][ T302] ? show_regs+0x58/0x60 [ 25.601803][ T302] ? __warn+0x160/0x2f0 [ 25.605774][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.611462][ T302] ? report_bug+0x3d9/0x5b0 [ 25.615789][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.621341][ T302] ? handle_bug+0x41/0x70 [ 25.625804][ T302] ? exc_invalid_op+0x1b/0x50 [ 25.630792][ T302] ? asm_exc_invalid_op+0x12/0x20 [ 25.635813][ T302] ? wake_up_klogd+0xb8/0xf0 [ 25.640610][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.646383][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.652327][ T302] sysfs_remove_files+0xa5/0x100 [ 25.657283][ T302] del_gendisk+0x248/0xa90 [ 25.661591][ T302] ? device_add_disk_no_queue_reg+0x30/0x30 [ 25.667463][ T302] ? radix_tree_delete_item+0x24d/0x350 [ 25.673009][ T302] loop_remove+0x46/0xb0 [ 25.677216][ T302] loop_control_ioctl+0x564/0x620 [ 25.682326][ T302] ? loop_remove+0xb0/0xb0 [ 25.686687][ T302] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.691816][ T302] ? ptrace_notify+0x24c/0x350 [ 25.696556][ T302] ? do_notify_parent+0xa10/0xa10 [ 25.701820][ T302] ? security_file_ioctl+0x84/0xb0 [ 25.706831][ T302] ? loop_remove+0xb0/0xb0 [ 25.711165][ T302] __se_sys_ioctl+0x114/0x190 [ 25.715655][ T302] __x64_sys_ioctl+0x7b/0x90 [ 25.720297][ T302] do_syscall_64+0x34/0x70 [ 25.724530][ T302] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 25.730598][ T302] RIP: 0033:0x7f3e1deb8d39 [ 25.734669][ T302] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 25.755126][ T302] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.763443][ T302] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e1deb8d39 [ 25.771434][ T302] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 25.779432][ T302] RBP: 0000000000005ee3 R08: 00000000000000a0 R09: 00000000000000a0 [ 25.787481][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd2a50167c [ 25.795521][ T302] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.803632][ T302] ---[ end trace 08aad3ffe8ebf0d7 ]--- [ 25.809205][ T302] ------------[ cut here ]------------ [ 25.814586][ T302] kernfs: can not remove 'events_async', no directory [ 25.821536][ T302] WARNING: CPU: 0 PID: 302 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 25.831209][ T302] Modules linked in: [ 25.835050][ T302] CPU: 0 PID: 302 Comm: syz-executor294 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 25.846956][ T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 25.857778][ T302] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 25.863931][ T302] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 25.883648][ T302] RSP: 0018:ffffc90000b37c18 EFLAGS: 00010246 [ 25.889546][ T302] RAX: ce7f7242b86bc000 RBX: 0000000000000000 RCX: ffff8881075e3b40 [ 25.897335][ T302] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 25.905263][ T302] RBP: ffffc90000b37c30 R08: ffffffff81521888 R09: ffffed103ee0a600 [ 25.913446][ T302] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 25.921721][ T302] R13: ffffffff86950cc0 R14: 0000000000000000 R15: ffffffff855f5bc0 [ 25.929605][ T302] FS: 0000555556607380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.938380][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.945390][ T302] CR2: 00007ffd2a501568 CR3: 000000011ea89000 CR4: 00000000003506b0 [ 25.953403][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.961285][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.969112][ T302] Call Trace: [ 25.972472][ T302] ? show_regs+0x58/0x60 [ 25.976665][ T302] ? __warn+0x160/0x2f0 [ 25.980707][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.986130][ T302] ? report_bug+0x3d9/0x5b0 [ 25.990500][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.996023][ T302] ? handle_bug+0x41/0x70 [ 26.000253][ T302] ? exc_invalid_op+0x1b/0x50 [ 26.004720][ T302] ? asm_exc_invalid_op+0x12/0x20 [ 26.009614][ T302] ? wake_up_klogd+0xb8/0xf0 [ 26.013988][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.019669][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.025097][ T302] sysfs_remove_files+0xa5/0x100 [ 26.029905][ T302] del_gendisk+0x248/0xa90 [ 26.034127][ T302] ? device_add_disk_no_queue_reg+0x30/0x30 [ 26.039883][ T302] ? radix_tree_delete_item+0x24d/0x350 [ 26.045238][ T302] loop_remove+0x46/0xb0 [ 26.049346][ T302] loop_control_ioctl+0x564/0x620 [ 26.054182][ T302] ? loop_remove+0xb0/0xb0 [ 26.058470][ T302] ? _raw_spin_unlock_irq+0x4e/0x70 [ 26.063459][ T302] ? ptrace_notify+0x24c/0x350 [ 26.068869][ T302] ? do_notify_parent+0xa10/0xa10 [ 26.074143][ T302] ? security_file_ioctl+0x84/0xb0 [ 26.079220][ T302] ? loop_remove+0xb0/0xb0 [ 26.083431][ T302] __se_sys_ioctl+0x114/0x190 [ 26.087971][ T302] __x64_sys_ioctl+0x7b/0x90 [ 26.092373][ T302] do_syscall_64+0x34/0x70 [ 26.096704][ T302] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 26.102469][ T302] RIP: 0033:0x7f3e1deb8d39 [ 26.106683][ T302] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 26.126247][ T302] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.134473][ T302] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e1deb8d39 [ 26.142301][ T302] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 26.150095][ T302] RBP: 0000000000005ee3 R08: 00000000000000a0 R09: 00000000000000a0 [ 26.157914][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd2a50167c [ 26.165701][ T302] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 26.173570][ T302] ---[ end trace 08aad3ffe8ebf0d8 ]--- [ 26.178832][ T302] ------------[ cut here ]------------ [ 26.184097][ T302] kernfs: can not remove 'events_poll_msecs', no directory [ 26.191684][ T302] WARNING: CPU: 0 PID: 302 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 26.201292][ T302] Modules linked in: [ 26.204934][ T302] CPU: 0 PID: 302 Comm: syz-executor294 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 26.216749][ T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 26.228098][ T302] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 26.234128][ T302] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 26.253861][ T302] RSP: 0018:ffffc90000b37c18 EFLAGS: 00010246 [ 26.259872][ T302] RAX: ce7f7242b86bc000 RBX: 0000000000000000 RCX: ffff8881075e3b40 [ 26.267785][ T302] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 26.275558][ T302] RBP: ffffc90000b37c30 R08: ffffffff81521888 R09: fffff52000166e99 [ 26.283396][ T302] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 26.291214][ T302] R13: ffffffff86950cc0 R14: 0000000000000000 R15: ffffffff855f5be0 [ 26.299231][ T302] FS: 0000555556607380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 26.308152][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.315004][ T302] CR2: 00007ffd2a501568 CR3: 000000011ea89000 CR4: 00000000003506b0 [ 26.322970][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.330773][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.338568][ T302] Call Trace: [ 26.341687][ T302] ? show_regs+0x58/0x60 [ 26.345741][ T302] ? __warn+0x160/0x2f0 [ 26.349770][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.355309][ T302] ? report_bug+0x3d9/0x5b0 [ 26.359731][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.365103][ T302] ? handle_bug+0x41/0x70 [ 26.369308][ T302] ? exc_invalid_op+0x1b/0x50 [ 26.373776][ T302] ? asm_exc_invalid_op+0x12/0x20 [ 26.379574][ T302] ? wake_up_klogd+0xb8/0xf0 [ 26.383933][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.389461][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.395073][ T302] sysfs_remove_files+0xa5/0x100 [ 26.400823][ T302] del_gendisk+0x248/0xa90 [ 26.405109][ T302] ? device_add_disk_no_queue_reg+0x30/0x30 [ 26.410878][ T302] ? radix_tree_delete_item+0x24d/0x350 [ 26.416219][ T302] loop_remove+0x46/0xb0 [ 26.420330][ T302] loop_control_ioctl+0x564/0x620 [ 26.425166][ T302] ? loop_remove+0xb0/0xb0 [ 26.429487][ T302] ? _raw_spin_unlock_irq+0x4e/0x70 [ 26.434442][ T302] ? ptrace_notify+0x24c/0x350 [ 26.439183][ T302] ? do_notify_parent+0xa10/0xa10 [ 26.443997][ T302] ? security_file_ioctl+0x84/0xb0 [ 26.449003][ T302] ? loop_remove+0xb0/0xb0 [ 26.453197][ T302] __se_sys_ioctl+0x114/0x190 [ 26.457751][ T302] __x64_sys_ioctl+0x7b/0x90 [ 26.462149][ T302] do_syscall_64+0x34/0x70 [ 26.466401][ T302] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 26.472166][ T302] RIP: 0033:0x7f3e1deb8d39 [ 26.476454][ T302] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 26.496028][ T302] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.504428][ T302] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e1deb8d39 [ 26.512263][ T302] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 26.520174][ T302] RBP: 0000000000005ee3 R08: 00000000000000a0 R09: 00000000000000a0 [ 26.527971][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd2a50167c [ 26.535755][ T302] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 26.543600][ T302] ---[ end trace 08aad3ffe8ebf0d9 ]--- [ 26.548940][ T302] ------------[ cut here ]------------ [ 26.554147][ T302] kernfs: can not remove 'bdi', no directory [ 26.560074][ T302] WARNING: CPU: 0 PID: 302 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 26.569438][ T302] Modules linked in: [ 26.573338][ T302] CPU: 0 PID: 302 Comm: syz-executor294 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 26.584830][ T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 26.594737][ T302] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 26.600861][ T302] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 26.620508][ T302] RSP: 0018:ffffc90000b37c38 EFLAGS: 00010246 [ 26.626362][ T302] RAX: ce7f7242b86bc000 RBX: 0000000000000000 RCX: ffff8881075e3b40 [ 26.634471][ T302] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 26.642268][ T302] RBP: ffffc90000b37c50 R08: ffffffff81521888 R09: fffff52000166e9d [ 26.650190][ T302] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888107998478 [ 26.657964][ T302] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff855f5440 [ 26.665771][ T302] FS: 0000555556607380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 26.675357][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.681766][ T302] CR2: 00007ffd2a501568 CR3: 000000011ea89000 CR4: 00000000003506b0 [ 26.689613][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.697357][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.705284][ T302] Call Trace: [ 26.708396][ T302] ? show_regs+0x58/0x60 [ 26.712461][ T302] ? __warn+0x160/0x2f0 [ 26.716444][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.722156][ T302] ? report_bug+0x3d9/0x5b0 [ 26.726388][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.732189][ T302] ? handle_bug+0x41/0x70 [ 26.736308][ T302] ? exc_invalid_op+0x1b/0x50 [ 26.740844][ T302] ? asm_exc_invalid_op+0x12/0x20 [ 26.745849][ T302] ? wake_up_klogd+0xb8/0xf0 [ 26.750496][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.755916][ T302] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 26.761424][ T302] sysfs_remove_link+0x50/0x60 [ 26.765981][ T302] del_gendisk+0x477/0xa90 [ 26.770285][ T302] ? device_add_disk_no_queue_reg+0x30/0x30 [ 26.775984][ T302] ? radix_tree_delete_item+0x24d/0x350 [ 26.781455][ T302] loop_remove+0x46/0xb0 [ 26.785630][ T302] loop_control_ioctl+0x564/0x620 [ 26.790587][ T302] ? loop_remove+0xb0/0xb0 [ 26.794914][ T302] ? _raw_spin_unlock_irq+0x4e/0x70 [ 26.800211][ T302] ? ptrace_notify+0x24c/0x350 [ 26.804724][ T302] ? do_notify_parent+0xa10/0xa10 [ 26.809619][ T302] ? security_file_ioctl+0x84/0xb0 [ 26.814518][ T302] ? loop_remove+0xb0/0xb0 [ 26.818810][ T302] __se_sys_ioctl+0x114/0x190 [ 26.823282][ T302] __x64_sys_ioctl+0x7b/0x90 [ 26.827758][ T302] do_syscall_64+0x34/0x70 [ 26.831988][ T302] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 26.837683][ T302] RIP: 0033:0x7f3e1deb8d39 [ 26.842193][ T302] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 26.861663][ T302] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.869877][ T302] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e1deb8d39 [ 26.877803][ T302] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 26.885587][ T302] RBP: 0000000000005ee3 R08: 00000000000000a0 R09: 00000000000000a0 [ 26.893458][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd2a50167c [ 26.901253][ T302] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 26.909062][ T302] ---[ end trace 08aad3ffe8ebf0da ]--- [ 26.915353][ T302] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 26.926871][ T302] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 26.935224][ T302] CPU: 0 PID: 302 Comm: syz-executor294 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 26.946744][ T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 26.956867][ T302] RIP: 0010:strlen+0x2c/0x70 [ 26.961297][ T302] Code: 89 e5 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01 [ 26.981065][ T302] RSP: 0018:ffffc90000b37ba8 EFLAGS: 00010246 [ 26.986965][ T302] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000001 [ 26.994778][ T302] RDX: ffff8881075e3b40 RSI: 0000000000000000 RDI: 0000000000000000 [ 27.002675][ T302] RBP: ffffc90000b37bc8 R08: ffffffff81d2b6cb R09: fffff52000166f79 [ 27.010573][ T302] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffffffff [ 27.018383][ T302] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 27.026207][ T302] FS: 0000555556607380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 27.035147][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.041578][ T302] CR2: 00007ffd2a501568 CR3: 000000011ea89000 CR4: 00000000003506b0 [ 27.049400][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.057198][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.065347][ T302] Call Trace: [ 27.068483][ T302] ? __die_body+0x62/0xb0 [ 27.072644][ T302] ? die_addr+0x9f/0xd0 [ 27.076639][ T302] ? exc_general_protection+0x3ff/0x490 [ 27.082033][ T302] ? asm_exc_general_protection+0x1e/0x30 [ 27.087588][ T302] ? kernfs_find_ns+0x7b/0x4a0 [ 27.092181][ T302] ? strlen+0x2c/0x70 [ 27.096019][ T302] kernfs_find_ns+0x95/0x4a0 [ 27.100814][ T302] kernfs_remove_by_name_ns+0x3a/0x110 [ 27.106099][ T302] sysfs_remove_link+0x50/0x60 [ 27.110693][ T302] del_gendisk+0x87b/0xa90 [ 27.115051][ T302] ? device_add_disk_no_queue_reg+0x30/0x30 [ 27.120770][ T302] ? radix_tree_delete_item+0x24d/0x350 [ 27.126506][ T302] loop_remove+0x46/0xb0 [ 27.130664][ T302] loop_control_ioctl+0x564/0x620 [ 27.135524][ T302] ? loop_remove+0xb0/0xb0 [ 27.139779][ T302] ? _raw_spin_unlock_irq+0x4e/0x70 [ 27.144812][ T302] ? ptrace_notify+0x24c/0x350 [ 27.149407][ T302] ? do_notify_parent+0xa10/0xa10 [ 27.154269][ T302] ? security_file_ioctl+0x84/0xb0 [ 27.159324][ T302] ? loop_remove+0xb0/0xb0 [ 27.163578][ T302] __se_sys_ioctl+0x114/0x190 [ 27.168304][ T302] __x64_sys_ioctl+0x7b/0x90 [ 27.172719][ T302] do_syscall_64+0x34/0x70 [ 27.177053][ T302] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 27.182808][ T302] RIP: 0033:0x7f3e1deb8d39 [ 27.187033][ T302] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 27.207572][ T302] RSP: 002b:00007ffd2a501668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.215899][ T302] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e1deb8d39 [ 27.224147][ T302] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 27.231954][ T302] RBP: 0000000000005ee3 R08: 00000000000000a0 R09: 00000000000000a0 [ 27.239767][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd2a50167c [ 27.247584][ T302] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 27.255386][ T302] Modules linked in: [ 27.259910][ T302] ---[ end trace 08aad3ffe8ebf0db ]--- [ 27.265219][ T302] RIP: 0010:strlen+0x2c/0x70 [ 27.269665][ T302] Code: 89 e5 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01 [ 27.289313][ T302] RSP: 0018:ffffc90000b37ba8 EFLAGS: 00010246 [ 27.295178][ T302] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000001 [ 27.303144][ T302] RDX: ffff8881075e3b40 RSI: 0000000000000000 RDI: 0000000000000000 [ 27.310997][ T302] RBP: ffffc90000b37bc8 R08: ffffffff81d2b6cb R09: fffff52000166f79 [ 27.319129][ T302] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffffffff [ 27.327335][ T302] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 27.335637][ T302] FS: 0000555556607380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 27.344950][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.351614][ T302] CR2: 00007ffd2a501568 CR3: 000000011ea89000 CR4: 00000000003506b0 [ 27.359581][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.367372][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.375366][ T302] Kernel panic - not syncing: Fatal exception [ 27.381297][ T302] Kernel Offset: disabled [ 27.385493][ T302] Rebooting in 86400 seconds..