[ 35.693707] audit: type=1800 audit(1551894277.414:27): pid=7539 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.722475] audit: type=1800 audit(1551894277.424:28): pid=7539 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. [ 36.331242] audit: type=1800 audit(1551894278.104:29): pid=7539 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 [ 36.350945] audit: type=1800 audit(1551894278.104:30): pid=7539 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 '10.128.0.91' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 45.526600] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 45.563376] 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 [ 45.576680] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 45.600958] 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 [ 46.222582] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 46.250295] Bluetooth: Can't register HCI device [ 46.276826] WARNING: CPU: 0 PID: 7870 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 46.283634] kobject: 'bluetooth' (0000000017e0af25): kobject_add_internal: parent: 'virtual', set: '(null)' [ 46.285074] Kernel panic - not syncing: panic_on_warn set ... [ 46.285090] CPU: 0 PID: 7870 Comm: syz-executor243 Not tainted 5.0.0+ #8 [ 46.285098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.285103] Call Trace: [ 46.285123] dump_stack+0x172/0x1f0 [ 46.285139] ? kernfs_unlink_sibling+0x150/0x170 [ 46.285154] panic+0x2cb/0x65c [ 46.285169] ? __warn_printk+0xf3/0xf3 [ 46.320241] kobject: 'hci2' (000000005c1e701b): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 46.323340] ? kernfs_get.part.0+0x73/0x90 [ 46.323355] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.323372] ? __warn.cold+0x5/0x45 [ 46.323388] ? __warn+0xe8/0x1d0 [ 46.328281] kobject: 'hci3' (000000008a2fdc39): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 46.331317] ? kernfs_get.part.0+0x73/0x90 [ 46.331334] __warn.cold+0x20/0x45 [ 46.331348] ? kernfs_get.part.0+0x73/0x90 [ 46.331365] report_bug+0x263/0x2b0 [ 46.331382] do_error_trap+0x11b/0x200 [ 46.335343] kobject: 'hci1' (00000000db1096e0): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 46.344950] do_invalid_op+0x37/0x50 [ 46.344961] ? kernfs_get.part.0+0x73/0x90 [ 46.344974] invalid_op+0x14/0x20 [ 46.344985] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 46.344996] 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 [ 46.345003] RSP: 0018:ffff888089edf840 EFLAGS: 00010293 [ 46.345013] RAX: ffff888091b2a080 RBX: ffff8880a8840ee0 RCX: ffffffff81d2bd6f [ 46.345020] RDX: 0000000000000000 RSI: ffffffff81d2bd93 RDI: 0000000000000005 [ 46.345028] RBP: ffff888089edf850 R08: ffff888091b2a080 R09: ffffed10151081dd [ 46.345037] R10: ffffed10151081dc R11: ffff8880a8840ee3 R12: 0000000000000000 [ 46.350760] kobject: 'hci3' (000000008a2fdc39): kobject_uevent_env [ 46.354799] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 46.354848] ? kernfs_get.part.0+0x4f/0x90 [ 46.354860] ? kernfs_get.part.0+0x73/0x90 [ 46.354878] kernfs_new_node+0xb8/0x130 [ 46.354906] kernfs_create_dir_ns+0x52/0x160 [ 46.361449] kobject: 'hci2' (000000005c1e701b): kobject_uevent_env [ 46.361903] sysfs_create_dir_ns+0x131/0x2a0 [ 46.382823] kobject: 'hci3' (000000008a2fdc39): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 46.383572] ? sysfs_create_mount_point+0xa0/0xa0 [ 46.395456] kobject: 'hci2' (000000005c1e701b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 46.400784] ? class_dir_child_ns_type+0xd/0x60 [ 46.400805] kobject_add_internal.cold+0xe5/0x5d4 [ 46.400823] kobject_add+0x150/0x1c0 [ 46.400836] ? kset_create_and_add+0x1a0/0x1a0 [ 46.400855] ? kasan_check_read+0x11/0x20 [ 46.400873] ? mutex_unlock+0xd/0x10 [ 46.404900] kobject: 'rfkill168' (00000000a7251947): kobject_add_internal: parent: 'hci3', set: 'devices' [ 46.408806] ? device_add+0x30f/0x1870 [ 46.408824] device_add+0x3d5/0x1870 [ 46.408841] ? device_initialize+0x440/0x440 [ 46.408859] ? get_device_parent.isra.0+0x570/0x570 [ 46.408875] ? start_creating+0x163/0x1e0 [ 46.408890] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.408910] hci_register_dev+0x304/0x880 [ 46.415521] kobject: 'hci1' (00000000db1096e0): kobject_uevent_env [ 46.417242] __vhci_create_device+0x2d0/0x5a0 [ 46.417262] vhci_write+0x2d0/0x470 [ 46.417280] __vfs_write+0x613/0x8e0 [ 46.417301] ? kernel_read+0x120/0x120 [ 46.440213] kobject: 'rfkill168' (00000000a7251947): kobject_uevent_env [ 46.441564] ? common_file_perm+0x1d6/0x6f0 [ 46.441587] ? apparmor_file_permission+0x25/0x30 [ 46.441608] ? rw_verify_area+0x118/0x360 [ 46.441625] vfs_write+0x20c/0x580 [ 46.466260] kobject: 'rfkill168' (00000000a7251947): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill168' [ 46.470705] ksys_write+0xea/0x1f0 [ 46.470723] ? __ia32_sys_read+0xb0/0xb0 [ 46.470741] ? do_syscall_64+0x26/0x610 [ 46.470754] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.470767] ? do_syscall_64+0x26/0x610 [ 46.470787] __x64_sys_write+0x73/0xb0 [ 46.470803] do_syscall_64+0x103/0x610 [ 46.470820] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.487663] kobject: 'rfkill169' (0000000019a1c1f8): kobject_add_internal: parent: 'hci2', set: 'devices' [ 46.488614] RIP: 0033:0x441129 [ 46.488629] 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 [ 46.488637] RSP: 002b:00007ffe110d7d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.488651] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441129 [ 46.488659] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 46.488671] RBP: 000000000000b457 R08: 00000000004002c8 R09: 00000000004002c8 [ 46.493120] kobject: 'rfkill169' (0000000019a1c1f8): kobject_uevent_env [ 46.496857] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401ea0 [ 46.496867] R13: 0000000000401f30 R14: 0000000000000000 R15: 0000000000000000 [ 46.501861] kobject: 'rfkill168' (00000000a7251947): kobject_uevent_env [ 46.512700] Kernel Offset: disabled [ 46.785188] Rebooting in 86400 seconds..