[ 35.750994] audit: type=1800 audit(1551900802.346:28): pid=7525 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. [ 36.478195] audit: type=1800 audit(1551900803.146:29): pid=7525 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 [ 36.497743] audit: type=1800 audit(1551900803.146:30): pid=7525 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [....] startpar: service(s) returned failure: rsyslog ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.31' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 63.432228] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 63.448280] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 63.464885] Bluetooth: Can't register HCI device [ 63.465179] 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 [ 63.484770] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 63.507959] 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 [ 63.726598] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 63.728986] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 63.751771] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 63.762961] Bluetooth: Can't register HCI device [ 63.771215] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program [ 63.781141] Bluetooth: Can't register HCI device [ 63.793302] 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 [ 63.824238] 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 [ 63.922832] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 63.949762] 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 [ 64.277996] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 64.290814] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 64.308668] Bluetooth: Can't register HCI device [ 64.308714] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 64.807217] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 64.825798] 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 [ 65.067642] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 65.082723] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 65.100957] Bluetooth: Can't register HCI device [ 65.108503] 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 [ 65.257667] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 65.277730] 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 [ 65.402822] WARNING: CPU: 0 PID: 8331 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 65.404517] kobject: 'bluetooth' (0000000004a1893e): kobject_add_internal: parent: 'virtual', set: '(null)' [ 65.411232] Kernel panic - not syncing: panic_on_warn set ... [ 65.411243] CPU: 0 PID: 8331 Comm: syz-executor641 Not tainted 5.0.0+ #8 [ 65.411248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.411251] Call Trace: [ 65.411272] dump_stack+0x172/0x1f0 [ 65.411282] ? kernfs_unlink_sibling+0x150/0x170 [ 65.411293] panic+0x2cb/0x65c [ 65.411305] ? __warn_printk+0xf3/0xf3 [ 65.411315] ? kernfs_get.part.0+0x73/0x90 [ 65.411324] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.411332] ? __warn.cold+0x5/0x45 [ 65.424205] kobject: 'hci2' (00000000b5c4869c): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.427186] ? __warn+0xe8/0x1d0 [ 65.427200] ? kernfs_get.part.0+0x73/0x90 [ 65.434162] kobject: 'hci3' (00000000bd230be8): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.443420] __warn.cold+0x20/0x45 [ 65.443432] ? kernfs_get.part.0+0x73/0x90 [ 65.443443] report_bug+0x263/0x2b0 [ 65.443455] do_error_trap+0x11b/0x200 [ 65.443466] do_invalid_op+0x37/0x50 [ 65.446072] kobject: 'hci4' (00000000502e006c): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.449749] ? kernfs_get.part.0+0x73/0x90 [ 65.449762] invalid_op+0x14/0x20 [ 65.449772] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 65.454861] kobject: 'hci0' (00000000e51514ec): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.457948] Code: e6 e8 71 30 9d ff 45 85 e4 74 1a e8 e7 2e 9d ff be 04 00 00 00 48 89 df e8 6a a3 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 cd 2e 9d ff <0f> 0b eb dd 48 89 df e8 91 c9 d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 65.457953] RSP: 0018:ffff888094b1f840 EFLAGS: 00010293 [ 65.457961] RAX: ffff88808af2e0c0 RBX: ffff88808dcd8e00 RCX: ffffffff81d2bd6f [ 65.457969] RDX: 0000000000000000 RSI: ffffffff81d2bd93 RDI: 0000000000000005 [ 65.462002] kobject: 'hci4' (00000000502e006c): kobject_uevent_env [ 65.466047] RBP: ffff888094b1f850 R08: ffff88808af2e0c0 R09: ffffed1011b9b1c1 [ 65.466052] R10: ffffed1011b9b1c0 R11: ffff88808dcd8e03 R12: 0000000000000000 [ 65.466057] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 65.466073] ? kernfs_get.part.0+0x4f/0x90 [ 65.471895] kobject: 'hci3' (00000000bd230be8): kobject_uevent_env [ 65.475312] ? kernfs_get.part.0+0x73/0x90 [ 65.475324] kernfs_new_node+0xb8/0x130 [ 65.475335] kernfs_create_dir_ns+0x52/0x160 [ 65.485179] kobject: 'hci2' (00000000b5c4869c): kobject_uevent_env [ 65.488386] sysfs_create_dir_ns+0x131/0x2a0 [ 65.488398] ? sysfs_create_mount_point+0xa0/0xa0 [ 65.492863] kobject: 'hci0' (00000000e51514ec): kobject_uevent_env [ 65.502484] ? class_dir_child_ns_type+0xd/0x60 [ 65.502497] kobject_add_internal.cold+0xe5/0x5d4 [ 65.502507] kobject_add+0x150/0x1c0 [ 65.502514] ? kset_create_and_add+0x1a0/0x1a0 [ 65.502531] ? kasan_check_read+0x11/0x20 [ 65.506142] kobject: 'hci2' (00000000b5c4869c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 65.510278] ? mutex_unlock+0xd/0x10 [ 65.510291] ? device_add+0x30f/0x1870 [ 65.510300] device_add+0x3d5/0x1870 [ 65.510309] ? device_initialize+0x440/0x440 [ 65.510319] ? get_device_parent.isra.0+0x570/0x570 [ 65.510330] ? start_creating+0x163/0x1e0 [ 65.510343] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 65.514039] kobject: 'hci4' (00000000502e006c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 65.517823] hci_register_dev+0x304/0x880 [ 65.517837] __vhci_create_device+0x2d0/0x5a0 [ 65.517848] vhci_write+0x2d0/0x470 [ 65.521767] kobject: 'rfkill612' (0000000060bd44d3): kobject_add_internal: parent: 'hci2', set: 'devices' [ 65.531250] __vfs_write+0x613/0x8e0 [ 65.531262] ? kernel_read+0x120/0x120 [ 65.531279] ? common_file_perm+0x1d6/0x6f0 [ 65.531291] ? apparmor_file_permission+0x25/0x30 [ 65.531302] ? rw_verify_area+0x118/0x360 [ 65.531315] vfs_write+0x20c/0x580 [ 65.531326] ksys_write+0xea/0x1f0 [ 65.535796] kobject: 'hci3' (00000000bd230be8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 65.539245] ? __ia32_sys_read+0xb0/0xb0 [ 65.539257] ? do_syscall_64+0x26/0x610 [ 65.539272] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.544209] kobject: 'hci0' (00000000e51514ec): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 65.553793] ? do_syscall_64+0x26/0x610 [ 65.553809] __x64_sys_write+0x73/0xb0 [ 65.553818] do_syscall_64+0x103/0x610 [ 65.553830] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.553838] RIP: 0033:0x441139 [ 65.553848] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.553853] RSP: 002b:00007ffd7f62d1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 65.553867] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441139 [ 65.573252] kobject: 'rfkill612' (0000000060bd44d3): kobject_uevent_env [ 65.578127] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 65.578133] RBP: 000000000000ff31 R08: 00000000004002c8 R09: 00000000004002c8 [ 65.578138] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401eb0 [ 65.578143] R13: 0000000000401f40 R14: 0000000000000000 R15: 0000000000000000 [ 65.586286] Kernel Offset: disabled [ 65.915579] Rebooting in 86400 seconds..