[ 35.216010] audit: type=1800 audit(1551280354.856:27): pid=7435 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.244178] audit: type=1800 audit(1551280354.866:28): pid=7435 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 35.976666] audit: type=1800 audit(1551280355.676:29): pid=7435 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 35.996161] audit: type=1800 audit(1551280355.676:30): pid=7435 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 45.594568] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 45.636812] Bluetooth: Can't register HCI device [ 45.650290] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 45.661043] Bluetooth: Can't register HCI device [ 45.676510] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 45.704156] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 45.710250] Bluetooth: Can't register HCI device [ 45.719302] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 45.876470] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 45.905234] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.153859] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 46.176341] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 46.185496] Bluetooth: Can't register HCI device [ 46.194149] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.571898] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 46.585326] Bluetooth: Can't register HCI device [ 46.606973] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.619930] Bluetooth: Can't register HCI device [ 46.635581] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 46.635703] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.696427] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 46.735938] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.746160] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 46.757621] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 46.770118] Bluetooth: Can't register HCI device [ 46.776065] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 47.159320] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 47.173426] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 47.289422] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 47.301116] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 47.314831] Bluetooth: Can't register HCI device [ 47.325769] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 47.513725] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 47.532016] Bluetooth: Can't register HCI device [ 47.550055] WARNING: CPU: 0 PID: 8101 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 executing program [ 47.558503] Kernel panic - not syncing: panic_on_warn set ... [ 47.559881] kobject: 'bluetooth' (000000008474fb80): kobject_add_internal: parent: 'virtual', set: '(null)' [ 47.564386] CPU: 0 PID: 8101 Comm: syz-executor499 Not tainted 5.0.0-rc8+ #89 [ 47.564392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.564395] Call Trace: [ 47.564414] dump_stack+0x172/0x1f0 [ 47.564426] ? kernfs_unlink_sibling+0x110/0x170 [ 47.564437] panic+0x2cb/0x65c [ 47.564449] ? __warn_printk+0xf3/0xf3 [ 47.564459] ? kernfs_get.part.0+0x73/0x90 [ 47.564468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.564475] ? __warn.cold+0x5/0x45 [ 47.606131] kobject: 'hci2' (000000001bfbc427): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 47.609527] ? __warn+0xe8/0x1d0 [ 47.609542] ? kernfs_get.part.0+0x73/0x90 [ 47.615554] kobject: 'hci1' (000000000aeb0598): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 47.619305] __warn.cold+0x20/0x45 [ 47.619317] ? kernfs_get.part.0+0x73/0x90 [ 47.619333] report_bug+0x263/0x2b0 [ 47.626737] kobject: 'hci2' (000000001bfbc427): kobject_uevent_env [ 47.632708] do_error_trap+0x11b/0x200 [ 47.632720] do_invalid_op+0x37/0x50 [ 47.632728] ? kernfs_get.part.0+0x73/0x90 [ 47.632738] invalid_op+0x14/0x20 [ 47.632747] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 47.632756] Code: e6 e8 f1 ce 9d ff 45 85 e4 74 1a e8 67 cd 9d ff be 04 00 00 00 48 89 df e8 7a a7 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 4d cd 9d ff <0f> 0b eb dd 48 89 df e8 a1 cd d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 47.632760] RSP: 0018:ffff88808a62f830 EFLAGS: 00010293 [ 47.652275] kobject: 'hci1' (000000000aeb0598): kobject_uevent_env [ 47.653558] RAX: ffff88809d536400 RBX: ffff88809f0bc9a0 RCX: ffffffff81d211af [ 47.653565] RDX: 0000000000000000 RSI: ffffffff81d211d3 RDI: 0000000000000005 [ 47.653570] RBP: ffff88808a62f840 R08: ffff88809d536400 R09: ffffed1013e17935 [ 47.653575] R10: ffffed1013e17934 R11: ffff88809f0bc9a3 R12: 0000000000000000 [ 47.653585] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 47.658008] kobject: 'hci2' (000000001bfbc427): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 47.661615] ? kernfs_get.part.0+0x4f/0x90 [ 47.661623] ? kernfs_get.part.0+0x73/0x90 [ 47.661635] kernfs_new_node+0xb8/0x130 [ 47.661645] kernfs_create_dir_ns+0x52/0x160 [ 47.661656] sysfs_create_dir_ns+0x131/0x2a0 [ 47.661664] ? sysfs_create_mount_point+0xa0/0xa0 [ 47.661679] ? class_dir_child_ns_type+0xd/0x60 [ 47.661695] kobject_add_internal.cold+0xe5/0x5d4 [ 47.670788] kobject: 'hci1' (000000000aeb0598): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 47.671898] kobject_add+0x150/0x1c0 [ 47.671910] ? kset_create_and_add+0x1a0/0x1a0 [ 47.679252] kobject: 'rfkill491' (00000000c322c494): kobject_add_internal: parent: 'hci1', set: 'devices' [ 47.679912] ? mutex_unlock+0xd/0x10 [ 47.693865] kobject: 'rfkill491' (00000000c322c494): kobject_uevent_env [ 47.707073] ? device_add+0x30f/0x1870 [ 47.707098] device_add+0x3d5/0x1870 [ 47.707111] ? device_initialize+0x440/0x440 [ 47.707121] ? get_device_parent.isra.0+0x570/0x570 [ 47.707132] ? start_creating+0x163/0x1e0 [ 47.707143] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.707159] hci_register_dev+0x304/0x880 [ 47.757922] kobject: 'rfkill491' (00000000c322c494): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill491' [ 47.764869] __vhci_create_device+0x2d0/0x5a0 [ 47.764887] vhci_write+0x2d0/0x470 [ 47.764905] __vfs_write+0x613/0x8e0 [ 47.764922] ? kernel_read+0x120/0x120 [ 47.764937] ? common_file_perm+0x1d6/0x6f0 [ 47.764951] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.764969] ? apparmor_file_permission+0x25/0x30 [ 47.785260] kobject: 'rfkill492' (00000000ec0543c3): kobject_add_internal: parent: 'hci2', set: 'devices' [ 47.786187] ? rw_verify_area+0x118/0x360 [ 47.786205] vfs_write+0x20c/0x580 [ 47.786223] ksys_write+0xea/0x1f0 [ 47.792962] kobject: 'rfkill491' (00000000c322c494): kobject_uevent_env [ 47.796595] ? __ia32_sys_read+0xb0/0xb0 [ 47.796614] ? do_fast_syscall_32+0xd1/0xc98 [ 47.796629] ? entry_SYSENTER_compat+0x70/0x7f [ 47.796645] ? do_fast_syscall_32+0xd1/0xc98 [ 47.804204] kobject: 'rfkill492' (00000000ec0543c3): kobject_uevent_env [ 47.811430] __ia32_sys_write+0x71/0xb0 [ 47.811451] do_fast_syscall_32+0x281/0xc98 [ 47.811471] entry_SYSENTER_compat+0x70/0x7f [ 47.811482] RIP: 0023:0xf7fc7869 [ 47.811496] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 47.811510] RSP: 002b:00000000ffb4c48c EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 47.811527] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200000c0 [ 47.831021] kobject: 'rfkill492' (00000000ec0543c3): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill492' [ 47.833204] RDX: 0000000000000002 RSI: 0000000000000001 RDI: 00000000ffb4c5c4 [ 47.833220] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 47.833231] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 47.833247] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 47.842317] kobject: 'rfkill491' (00000000c322c494): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill491' [ 47.848780] Kernel Offset: disabled [ 48.068836] Rebooting in 86400 seconds..