[ 36.437001][ T27] audit: type=1800 audit(1551741414.322:27): pid=7584 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 36.472947][ T27] audit: type=1800 audit(1551741414.322:28): pid=7584 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. [ 37.104552][ T27] audit: type=1800 audit(1551741415.052:29): pid=7584 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 [ 37.130332][ T27] audit: type=1800 audit(1551741415.052:30): pid=7584 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 '10.128.10.17' (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: [ 70.066052][ T7777] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 70.087974][ T7777] 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 [ 70.221624][ T7836] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 70.256347][ T7836] 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 [ 71.120460][ T8120] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 71.136260][ T8120] Bluetooth: Can't register HCI device executing program executing program executing program executing program [ 71.173482][ T8125] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 71.189142][ T8125] 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 [ 72.067561][ T8488] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program [ 72.116006][ T8488] 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 [ 73.263387][ T8826] WARNING: CPU: 1 PID: 8826 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 73.263396][ T8828] kobject: 'hci1' (00000000fc9147c5): kobject_cleanup, parent (null) [ 73.263409][ T8828] kobject: 'hci1' (00000000fc9147c5): calling ktype release [ 73.272348][ T8826] Kernel panic - not syncing: panic_on_warn set ... [ 73.272364][ T8826] CPU: 1 PID: 8826 Comm: syz-executor018 Not tainted 5.0.0-rc8-next-20190304 #2 [ 73.272372][ T8826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.272377][ T8826] Call Trace: [ 73.272397][ T8826] dump_stack+0x172/0x1f0 [ 73.272416][ T8826] ? kernfs_get.part.0+0x20/0x90 [ 73.272433][ T8826] panic+0x2cb/0x65c [ 73.272449][ T8826] ? __warn_printk+0xf3/0xf3 [ 73.272470][ T8826] ? kernfs_get.part.0+0x73/0x90 [ 73.272485][ T8826] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 73.272501][ T8826] ? __warn.cold+0x5/0x45 [ 73.272516][ T8826] ? __warn+0xe8/0x1d0 [ 73.272533][ T8826] ? kernfs_get.part.0+0x73/0x90 [ 73.272549][ T8826] __warn.cold+0x20/0x45 [ 73.272571][ T8826] ? idr_alloc+0x150/0x150 [ 73.272591][ T8826] ? kernfs_get.part.0+0x73/0x90 [ 73.284696][ T8833] kobject: 'bluetooth' (00000000ba0bc6a6): kobject_add_internal: parent: 'virtual', set: '(null)' [ 73.288794][ T8826] report_bug+0x263/0x2b0 [ 73.288813][ T8826] do_error_trap+0x11b/0x200 [ 73.288831][ T8826] do_invalid_op+0x37/0x50 [ 73.295551][ T8833] kobject: 'hci1' (000000006b23aab2): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 73.304491][ T8826] ? kernfs_get.part.0+0x73/0x90 [ 73.304506][ T8826] invalid_op+0x14/0x20 [ 73.304550][ T8826] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 73.314941][ T8828] kobject: 'hci1': free name [ 73.317874][ T8826] Code: e6 e8 51 f7 9a ff 45 85 e4 74 1a e8 c7 f5 9a ff be 04 00 00 00 48 89 df e8 da d1 d2 ff f0 ff 03 5b 41 5c 5d c3 e8 ad f5 9a ff <0f> 0b eb dd 48 89 df e8 d1 f7 d2 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 73.322654][ T8833] kobject: 'hci1' (000000006b23aab2): kobject_uevent_env [ 73.327471][ T8826] RSP: 0018:ffff8880a889f808 EFLAGS: 00010293 [ 73.327484][ T8826] RAX: ffff88809f6aa500 RBX: ffff88809fe600e0 RCX: ffffffff81d5cc2f [ 73.327492][ T8826] RDX: 0000000000000000 RSI: ffffffff81d5cc53 RDI: 0000000000000005 [ 73.327510][ T8826] RBP: ffff8880a889f818 R08: ffff88809f6aa500 R09: ffffed1013fcc01d [ 73.333012][ T8828] kobject: 'hci2' (00000000c7f1aa88): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 73.335972][ T8826] R10: ffffed1013fcc01c R11: ffff88809fe600e3 R12: 0000000000000000 [ 73.335981][ T8826] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 73.336006][ T8826] ? kernfs_get.part.0+0x4f/0x90 [ 73.336026][ T8826] ? kernfs_get.part.0+0x73/0x90 [ 73.341587][ T8828] kobject: 'hci2' (00000000c7f1aa88): kobject_uevent_env [ 73.347175][ T8826] ? kernfs_get.part.0+0x73/0x90 [ 73.347193][ T8826] kernfs_new_node+0xb8/0x130 [ 73.347213][ T8826] kernfs_create_dir_ns+0x52/0x160 [ 73.347233][ T8826] sysfs_create_dir_ns+0x131/0x2a0 [ 73.351662][ T8833] kobject: 'hci1' (000000006b23aab2): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 73.355608][ T8826] ? sysfs_create_mount_point+0xa0/0xa0 [ 73.355633][ T8826] ? class_dir_child_ns_type+0xd/0x60 [ 73.355652][ T8826] kobject_add_internal.cold+0xe5/0x5d4 [ 73.355671][ T8826] kobject_add+0x150/0x1c0 [ 73.360694][ T8828] kobject: 'hci2' (00000000c7f1aa88): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 73.364816][ T8826] ? kset_create_and_add+0x1a0/0x1a0 [ 73.364837][ T8826] ? kasan_check_read+0x11/0x20 [ 73.364858][ T8826] ? mutex_unlock+0xd/0x10 [ 73.364879][ T8826] ? device_add+0x30f/0x18a0 [ 73.369559][ T8833] kobject: 'rfkill568' (000000003a16a0cf): kobject_add_internal: parent: 'hci1', set: 'devices' [ 73.374237][ T8826] device_add+0x3d5/0x18a0 [ 73.374254][ T8826] ? device_initialize+0x440/0x440 [ 73.374276][ T8826] ? get_device_parent.isra.0+0x570/0x570 [ 73.374293][ T8826] ? start_creating+0x163/0x1e0 [ 73.374317][ T8826] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 73.374334][ T8826] hci_register_dev+0x2e8/0x860 [ 73.385428][ T8833] kobject: 'rfkill568' (000000003a16a0cf): kobject_uevent_env [ 73.389341][ T8826] __vhci_create_device+0x2d0/0x5a0 [ 73.389361][ T8826] vhci_write+0x2d0/0x470 [ 73.389380][ T8826] new_sync_write+0x4c7/0x760 [ 73.389400][ T8826] ? default_llseek+0x2e0/0x2e0 [ 73.394086][ T8833] kobject: 'rfkill568' (000000003a16a0cf): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill568' [ 73.398389][ T8826] ? common_file_perm+0x238/0x720 [ 73.398406][ T8826] ? __fget+0x381/0x550 [ 73.398425][ T8826] ? apparmor_file_permission+0x25/0x30 [ 73.398446][ T8826] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 73.409147][ T8828] kobject: 'rfkill569' (000000000dd8375e): kobject_add_internal: parent: 'hci2', set: 'devices' [ 73.413766][ T8826] ? security_file_permission+0x94/0x380 [ 73.413787][ T8826] __vfs_write+0xe4/0x110 [ 73.413806][ T8826] vfs_write+0x20c/0x580 [ 73.413827][ T8826] ksys_write+0xea/0x1f0 [ 73.413847][ T8826] ? __ia32_sys_read+0xb0/0xb0 [ 73.418277][ T8828] kobject: 'rfkill569' (000000000dd8375e): kobject_uevent_env [ 73.423717][ T8826] ? do_syscall_64+0x26/0x610 [ 73.423733][ T8826] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.423747][ T8826] ? do_syscall_64+0x26/0x610 [ 73.423767][ T8826] __x64_sys_write+0x73/0xb0 [ 73.423787][ T8826] do_syscall_64+0x103/0x610 [ 73.429195][ T8833] kobject: 'rfkill568' (000000003a16a0cf): kobject_uevent_env [ 73.447962][ T8826] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.447976][ T8826] RIP: 0033:0x44a139 [ 73.447991][ T8826] Code: e8 0c 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 9b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 73.447999][ T8826] RSP: 002b:00007f31de39edb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 73.448012][ T8826] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044a139 [ 73.448028][ T8826] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 73.455155][ T8828] kobject: 'rfkill569' (000000000dd8375e): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill569' [ 73.461089][ T8826] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 73.461098][ T8826] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 73.461107][ T8826] R13: 00007ffe0f5dd75f R14: 00007f31de39f9c0 R15: 0000000000000000 [ 73.469764][ T8826] Kernel Offset: disabled [ 73.875540][ T8826] Rebooting in 86400 seconds..