[ 35.858078] audit: type=1800 audit(1551282375.006:27): pid=7485 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.879106] audit: type=1800 audit(1551282375.006:28): pid=7485 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. [ 36.516325] audit: type=1800 audit(1551282375.716:29): pid=7485 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 [ 36.541251] audit: type=1800 audit(1551282375.716:30): pid=7485 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 '10.128.0.155' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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: [ 64.264941] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 64.282772] 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 [ 64.411627] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 64.426491] 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 [ 64.505186] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 64.530658] 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 [ 64.792463] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 64.814804] Bluetooth: Can't register HCI device executing program executing program [ 64.857002] WARNING: CPU: 0 PID: 7878 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 64.861127] kobject: 'hci0' (0000000098006ea5): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 64.865249] Kernel panic - not syncing: panic_on_warn set ... [ 64.865261] CPU: 0 PID: 7878 Comm: syz-executor801 Not tainted 5.0.0-rc8+ #89 [ 64.865266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.865269] Call Trace: [ 64.865285] dump_stack+0x172/0x1f0 [ 64.865299] ? kernfs_unlink_sibling+0x110/0x170 [ 64.875717] kobject: 'hci1' (00000000a01c833c): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 64.880885] panic+0x2cb/0x65c [ 64.880894] ? __warn_printk+0xf3/0xf3 [ 64.880904] ? kernfs_get.part.0+0x73/0x90 [ 64.880913] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.880920] ? __warn.cold+0x5/0x45 [ 64.880931] ? __warn+0xe8/0x1d0 [ 64.909803] kobject: 'hci1' (00000000a01c833c): kobject_uevent_env [ 64.918216] ? kernfs_get.part.0+0x73/0x90 [ 64.918227] __warn.cold+0x20/0x45 [ 64.918235] ? kernfs_get.part.0+0x73/0x90 [ 64.918250] report_bug+0x263/0x2b0 [ 64.918262] do_error_trap+0x11b/0x200 [ 64.918274] do_invalid_op+0x37/0x50 [ 64.926356] kobject: 'hci0' (0000000098006ea5): kobject_uevent_env [ 64.929573] ? kernfs_get.part.0+0x73/0x90 [ 64.929591] invalid_op+0x14/0x20 [ 64.929604] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 64.929619] 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 [ 64.941097] kobject: 'hci0' (0000000098006ea5): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 64.942197] RSP: 0018:ffff88809f987840 EFLAGS: 00010293 [ 64.942206] RAX: ffff888093ed6440 RBX: ffff88809575dc40 RCX: ffffffff81d211af [ 64.942211] RDX: 0000000000000000 RSI: ffffffff81d211d3 RDI: 0000000000000005 [ 64.942216] RBP: ffff88809f987850 R08: ffff888093ed6440 R09: ffffed1012aebb89 [ 64.942221] R10: ffffed1012aebb88 R11: ffff88809575dc43 R12: 0000000000000000 [ 64.942225] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 64.942241] ? kernfs_get.part.0+0x4f/0x90 [ 64.942251] ? kernfs_get.part.0+0x73/0x90 [ 64.955566] kobject: 'hci1' (00000000a01c833c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 64.956300] kernfs_new_node+0xb8/0x130 [ 64.967598] kobject: 'rfkill232' (000000000f6a2d45): kobject_add_internal: parent: 'hci0', set: 'devices' [ 64.967973] kernfs_create_dir_ns+0x52/0x160 [ 64.980068] kobject: 'rfkill232' (000000000f6a2d45): kobject_uevent_env [ 64.982227] sysfs_create_dir_ns+0x131/0x2a0 [ 64.982237] ? sysfs_create_mount_point+0xa0/0xa0 [ 64.982251] ? class_dir_child_ns_type+0xd/0x60 [ 64.982265] kobject_add_internal.cold+0xe5/0x5d4 [ 64.996313] kobject: 'rfkill232' (000000000f6a2d45): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill232' [ 65.009588] kobject_add+0x150/0x1c0 [ 65.009598] ? kset_create_and_add+0x1a0/0x1a0 [ 65.009611] ? kasan_check_read+0x11/0x20 [ 65.009623] ? mutex_unlock+0xd/0x10 [ 65.009630] ? device_add+0x30f/0x1870 [ 65.009641] device_add+0x3d5/0x1870 [ 65.058529] kobject: 'rfkill233' (000000000d438e34): kobject_add_internal: parent: 'hci1', set: 'devices' [ 65.060979] ? device_initialize+0x440/0x440 [ 65.060994] ? get_device_parent.isra.0+0x570/0x570 [ 65.061009] hci_register_dev+0x304/0x880 [ 65.065747] kobject: 'rfkill233' (000000000d438e34): kobject_uevent_env [ 65.069480] __vhci_create_device+0x2d0/0x5a0 [ 65.069491] vhci_write+0x2d0/0x470 [ 65.069503] __vfs_write+0x613/0x8e0 [ 65.069517] ? kernel_read+0x120/0x120 [ 65.079648] kobject: 'rfkill232' (000000000f6a2d45): kobject_uevent_env [ 65.083088] ? common_file_perm+0x1d6/0x6f0 [ 65.083100] ? apparmor_file_permission+0x25/0x30 [ 65.083113] ? rw_verify_area+0x118/0x360 [ 65.083125] vfs_write+0x20c/0x580 [ 65.112114] kobject: 'rfkill233' (000000000d438e34): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill233' [ 65.113141] ksys_write+0xea/0x1f0 [ 65.113153] ? __ia32_sys_read+0xb0/0xb0 [ 65.113164] ? do_syscall_64+0x26/0x610 [ 65.113178] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.124049] kobject: 'rfkill232' (000000000f6a2d45): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill232' [ 65.133567] ? do_syscall_64+0x26/0x610 [ 65.133584] __x64_sys_write+0x73/0xb0 [ 65.133594] do_syscall_64+0x103/0x610 [ 65.133606] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.133614] RIP: 0033:0x440e49 [ 65.133626] 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.143002] kobject: 'rfkill233' (000000000d438e34): kobject_uevent_env [ 65.146013] RSP: 002b:00007ffd09837068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 65.146023] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440e49 [ 65.146027] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 65.146032] RBP: 000000000000fcfa R08: 00000000004002c8 R09: 00000000004002c8 [ 65.146037] R10: 0000000000bfd880 R11: 0000000000000246 R12: 0000000000401ce0 [ 65.146042] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 65.150546] Kernel Offset: disabled [ 65.359526] Rebooting in 86400 seconds..