[ 34.770972] audit: type=1800 audit(1549970049.073:27): pid=7440 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.794131] audit: type=1800 audit(1549970049.073:28): pid=7440 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. [ 35.493386] audit: type=1800 audit(1549970049.853:29): pid=7440 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 [ 35.518638] audit: type=1800 audit(1549970049.853:30): pid=7440 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 '10.128.10.19' (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 syzkaller login: [ 45.498250] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 45.525476] Bluetooth: Can't register HCI device [ 45.536056] kasan: CONFIG_KASAN_INLINE enabled executing program [ 45.544197] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 45.559366] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 45.561268] kobject: 'rfkill17' (000000003f57d85b): kobject_uevent_env [ 45.565627] CPU: 1 PID: 7614 Comm: syz-executor643 Not tainted 5.0.0-rc6+ #68 [ 45.565635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.565656] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 45.573013] kobject: 'hci2' (000000007a9c901f): calling ktype release [ 45.579561] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83 [ 45.579569] RSP: 0018:ffff8880a84c7848 EFLAGS: 00010202 [ 45.579578] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87022ab8 [ 45.579586] RDX: 0000000000000001 RSI: ffffffff81d251db RDI: 0000000000000008 [ 45.579594] RBP: ffff8880a84c7888 R08: 1ffffffff1151204 R09: fffffbfff1151205 executing program [ 45.579601] R10: fffffbfff1151204 R11: ffffffff88a89027 R12: ffff88809fd69b60 [ 45.579607] R13: ffff88809fd69b60 R14: 0000000000000000 R15: 0000000000000000 [ 45.579616] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008ba5840 [ 45.579627] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 45.589266] kobject: 'rfkill17' (000000003f57d85b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill17' [ 45.593905] CR2: 00000000200000c0 CR3: 0000000095381000 CR4: 00000000001406e0 [ 45.593916] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.593923] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.593929] Call Trace: [ 45.600572] kobject: 'hci2': free name [ 45.619387] kernfs_create_dir_ns+0xff/0x160 [ 45.619402] sysfs_create_dir_ns+0x131/0x2a0 [ 45.619415] ? sysfs_create_mount_point+0xa0/0xa0 [ 45.619434] ? class_dir_child_ns_type+0xd/0x60 [ 45.627432] kobject: 'rfkill17' (000000003f57d85b): kobject_uevent_env [ 45.632047] kobject_add_internal.cold+0xe5/0x5d4 [ 45.632061] kobject_add+0x150/0x1c0 [ 45.639447] kobject: 'rfkill17' (000000003f57d85b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill17' [ 45.646586] ? kset_create_and_add+0x1a0/0x1a0 [ 45.646605] ? mutex_unlock+0xd/0x10 [ 45.646619] ? device_add+0x30f/0x1870 [ 45.656545] kobject: 'rfkill17' (000000003f57d85b): kobject_cleanup, parent (null) [ 45.661143] device_add+0x3d5/0x1870 [ 45.661159] ? device_initialize+0x440/0x440 [ 45.661171] ? get_device_parent.isra.0+0x570/0x570 [ 45.661187] hci_register_dev+0x304/0x880 [ 45.670994] kobject: 'hci5' (00000000f49e74fe): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 45.675282] __vhci_create_device+0x2d0/0x5a0 [ 45.675297] vhci_write+0x2d0/0x470 [ 45.686142] kobject: 'rfkill17' (000000003f57d85b): calling ktype release [ 45.693304] __vfs_write+0x613/0x8e0 [ 45.693328] ? kernel_read+0x120/0x120 [ 45.693342] ? common_file_perm+0x1d6/0x6f0 [ 45.693359] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.701088] kobject: 'hci5' (00000000f49e74fe): kobject_uevent_env [ 45.707872] ? apparmor_file_permission+0x25/0x30 [ 45.707889] ? rw_verify_area+0x118/0x360 [ 45.707901] vfs_write+0x20c/0x580 [ 45.707913] ksys_write+0xea/0x1f0 [ 45.707925] ? __ia32_sys_read+0xb0/0xb0 [ 45.707943] ? do_fast_syscall_32+0xd1/0xc98 [ 45.710591] kobject: 'rfkill18' (00000000f6e30442): kobject_add_internal: parent: 'hci2', set: 'devices' [ 45.714377] ? entry_SYSENTER_compat+0x70/0x7f [ 45.714389] ? do_fast_syscall_32+0xd1/0xc98 [ 45.714405] __ia32_sys_write+0x71/0xb0 executing program [ 45.719393] kobject: 'hci5' (00000000f49e74fe): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 45.723728] do_fast_syscall_32+0x281/0xc98 [ 45.723746] entry_SYSENTER_compat+0x70/0x7f [ 45.728793] kobject: 'rfkill17': free name [ 45.733345] RIP: 0023:0xf7f40869 [ 45.733355] 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 [ 45.733359] RSP: 002b:00000000ff9c579c EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 45.733368] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000180 [ 45.733372] RDX: 0000000000000002 RSI: 0000000000000001 RDI: 00000000ff9c58d4 [ 45.733377] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 45.733382] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 45.733392] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 45.741635] kobject: 'rfkill18' (00000000f6e30442): kobject_uevent_env [ 45.746126] Modules linked in: [ 45.747886] ---[ end trace c4ba62bda5b18881 ]--- [ 45.752625] kobject: 'rfkill18' (00000000f6e30442): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill18' [ 45.761755] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 45.767623] kobject: 'hci3' (00000000d548b090): kobject_uevent_env [ 45.771399] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83 [ 45.775516] kobject: 'hci3' (00000000d548b090): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 45.784213] RSP: 0018:ffff8880a84c7848 EFLAGS: 00010202 [ 45.789776] kobject: 'rfkill19' (00000000c7cad148): kobject_add_internal: parent: 'hci1', set: 'devices' [ 45.792557] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87022ab8 [ 45.797749] kobject: 'rfkill18' (00000000f6e30442): kobject_uevent_env [ 45.801770] RDX: 0000000000000001 RSI: ffffffff81d251db RDI: 0000000000000008 [ 45.811763] kobject: 'rfkill19' (00000000c7cad148): kobject_uevent_env [ 45.816247] RBP: ffff8880a84c7888 R08: 1ffffffff1151204 R09: fffffbfff1151205 [ 45.819855] kobject: 'rfkill19' (00000000c7cad148): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill19' [ 45.827817] kobject: 'hci3' (00000000d548b090): kobject_cleanup, parent (null) [ 45.830854] kobject: 'rfkill18' (00000000f6e30442): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill18' [ 45.834519] R10: fffffbfff1151204 R11: ffffffff88a89027 R12: ffff88809fd69b60 [ 45.840736] kobject: 'rfkill20' (00000000d273344e): kobject_add_internal: parent: 'hci4', set: 'devices' [ 45.844633] kobject: 'hci3' (00000000d548b090): calling ktype release [ 45.851165] kobject: 'rfkill19' (00000000c7cad148): kobject_uevent_env [ 45.856031] R13: ffff88809fd69b60 R14: 0000000000000000 R15: 0000000000000000 [ 45.861294] kobject: 'rfkill20' (00000000d273344e): kobject_uevent_env [ 45.863917] kobject: 'hci3': free name [ 45.867337] kobject: 'rfkill19' (00000000c7cad148): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill19' [ 45.871537] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008ba5840 [ 45.875849] kobject: 'rfkill20' (00000000d273344e): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill20' [ 45.886265] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 45.892705] kobject: 'rfkill21' (00000000c6245b9b): kobject_add_internal: parent: 'hci5', set: 'devices' [ 45.895341] CR2: 00007f7fd30a3000 CR3: 0000000095381000 CR4: 00000000001406e0 [ 45.899459] kobject: 'rfkill20' (00000000d273344e): kobject_uevent_env [ 45.908942] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.913665] kobject: 'rfkill21' (00000000c6245b9b): kobject_uevent_env [ 45.918121] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.923796] kobject: 'hci3' (000000007dcbe024): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 45.926126] Kernel panic - not syncing: Fatal exception [ 45.945421] kobject: 'rfkill21' (00000000c6245b9b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill21' [ 45.954193] Kernel Offset: disabled [ 46.292716] Rebooting in 86400 seconds..