[ 34.669438] audit: type=1800 audit(1551207883.645:27): pid=7453 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.689327] audit: type=1800 audit(1551207883.645:28): pid=7453 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. [ 35.413293] audit: type=1800 audit(1551207884.445:29): pid=7453 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 [ 35.438685] audit: type=1800 audit(1551207884.445:30): pid=7453 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 '10.128.0.151' (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 syzkaller login: [ 47.125345] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 47.151204] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 47.165742] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program [ 47.176574] Bluetooth: Can't register HCI device [ 47.193753] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 47.211155] kobject_add_internal failed for hci2 (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 executing program [ 47.226925] Bluetooth: Can't register HCI device [ 47.232111] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 47.243849] Bluetooth: Can't register HCI device [ 47.257218] 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 [ 47.322761] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 47.345289] 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 [ 47.643611] kobject_add_internal failed for hci6 (error: -2 parent: bluetooth) [ 47.658421] Bluetooth: Can't register HCI device [ 47.676978] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program [ 47.689846] 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 [ 47.798189] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 47.810694] 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 [ 48.203086] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 48.216280] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 48.238580] Bluetooth: Can't register HCI device [ 48.248131] 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 [ 48.288650] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 48.302566] Bluetooth: Can't register HCI device [ 48.314407] kasan: CONFIG_KASAN_INLINE enabled executing program executing program executing program executing program executing program executing program [ 48.335327] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.371660] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 48.373652] kobject: 'hci4' (00000000c1b8ca1f): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 48.377950] CPU: 1 PID: 7884 Comm: syz-executor635 Not tainted 5.0.0-rc8+ #89 [ 48.377958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.377976] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 48.377991] 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 [ 48.387943] kobject: 'hci4' (00000000c1b8ca1f): kobject_uevent_env [ 48.394977] RSP: 0018:ffff88809d03f848 EFLAGS: 00010202 [ 48.394987] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87026908 [ 48.394994] RDX: 0000000000000001 RSI: ffffffff81d2510b RDI: 0000000000000008 [ 48.395003] RBP: ffff88809d03f888 R08: 1ffffffff115121c R09: fffffbfff115121d [ 48.395010] R10: fffffbfff115121c R11: ffffffff88a890e7 R12: ffff8880987907e0 [ 48.395017] R13: ffff8880987907e0 R14: 0000000000000000 R15: 0000000000000000 [ 48.395027] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000095b4840 [ 48.395036] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 48.405009] kobject: 'hci4' (00000000c1b8ca1f): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 48.409178] CR2: 00007fb2d12ef000 CR3: 00000000a989f000 CR4: 00000000001406e0 [ 48.409190] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.409198] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.409203] Call Trace: [ 48.409225] kernfs_create_dir_ns+0xff/0x160 [ 48.530712] sysfs_create_dir_ns+0x131/0x2a0 [ 48.535117] ? sysfs_create_mount_point+0xa0/0xa0 [ 48.540142] ? class_dir_child_ns_type+0xd/0x60 [ 48.542593] kobject: 'hci2' (00000000294454d7): kobject_cleanup, parent (null) [ 48.544970] kobject_add_internal.cold+0xe5/0x5d4 [ 48.544983] kobject_add+0x150/0x1c0 [ 48.553392] kobject: 'hci2' (00000000294454d7): calling ktype release [ 48.558273] ? kset_create_and_add+0x1a0/0x1a0 [ 48.558287] ? mutex_unlock+0xd/0x10 [ 48.558298] ? device_add+0x30f/0x1870 [ 48.562555] kobject: 'hci2': free name [ 48.568780] device_add+0x3d5/0x1870 [ 48.568791] ? device_initialize+0x440/0x440 [ 48.568800] ? get_device_parent.isra.0+0x570/0x570 [ 48.568814] ? start_creating+0x163/0x1e0 [ 48.574420] kobject: 'rfkill271' (00000000ac7f35bb): kobject_add_internal: parent: 'hci5', set: 'devices' [ 48.577257] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.577268] hci_register_dev+0x304/0x880 executing program executing program [ 48.577281] __vhci_create_device+0x2d0/0x5a0 [ 48.581546] kobject: 'rfkill271' (00000000ac7f35bb): kobject_uevent_env [ 48.585126] vhci_write+0x2d0/0x470 [ 48.585138] __vfs_write+0x613/0x8e0 [ 48.585146] ? kernel_read+0x120/0x120 [ 48.585155] ? common_file_perm+0x1d6/0x6f0 [ 48.585166] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.589883] kobject: 'rfkill270' (000000000b4f01f1): kobject_uevent_env [ 48.593568] ? apparmor_file_permission+0x25/0x30 [ 48.593578] ? rw_verify_area+0x118/0x360 [ 48.593586] vfs_write+0x20c/0x580 [ 48.593597] ksys_write+0xea/0x1f0 [ 48.598671] kobject: 'rfkill271' (00000000ac7f35bb): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill271' [ 48.603060] ? __ia32_sys_read+0xb0/0xb0 [ 48.603072] ? do_fast_syscall_32+0xd1/0xc98 [ 48.603081] ? entry_SYSENTER_compat+0x70/0x7f [ 48.603092] ? do_fast_syscall_32+0xd1/0xc98 [ 48.614274] kobject: 'rfkill270' (000000000b4f01f1): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill270' [ 48.618788] __ia32_sys_write+0x71/0xb0 [ 48.618800] do_fast_syscall_32+0x281/0xc98 [ 48.618811] entry_SYSENTER_compat+0x70/0x7f [ 48.623280] kobject: 'hci2' (00000000030a7ccf): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 48.627690] RIP: 0023:0xf7f75869 [ 48.627701] 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 [ 48.627710] RSP: 002b:00000000ffda8d6c EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 48.635080] kobject: 'rfkill272' (00000000eda42ee5): kobject_add_internal: parent: 'hci4', set: 'devices' [ 48.638238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000040 [ 48.638243] RDX: 0000000000000002 RSI: 0000000000000001 RDI: 00000000ffda8ea4 [ 48.638247] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 48.638251] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 48.638256] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 48.638263] Modules linked in: [ 48.642569] kobject: 'rfkill271' (00000000ac7f35bb): kobject_uevent_env [ 48.649989] kobject: 'hci6' (000000001cf5bbcd): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 48.662739] kobject: 'hci2' (00000000030a7ccf): kobject_uevent_env [ 48.665589] kobject: 'hci6' (000000001cf5bbcd): kobject_uevent_env [ 48.670478] kobject: 'rfkill272' (00000000eda42ee5): kobject_uevent_env [ 48.674068] kobject: 'hci6' (000000001cf5bbcd): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6' [ 48.679985] kobject: 'hci2' (00000000030a7ccf): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 48.681313] kobject: 'rfkill271' (00000000ac7f35bb): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill271' [ 48.700600] kobject: 'rfkill272' (00000000eda42ee5): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill272' [ 48.704000] ---[ end trace f14a1a4ef9199320 ]--- [ 48.717004] kobject: 'rfkill270' (000000000b4f01f1): kobject_cleanup, parent (null) [ 48.723147] kobject: 'rfkill273' (00000000bc51a2ad): kobject_add_internal: parent: 'hci6', set: 'devices' [ 48.732614] kobject: 'rfkill272' (00000000eda42ee5): kobject_uevent_env [ 48.735173] kobject: 'rfkill273' (00000000bc51a2ad): kobject_uevent_env [ 48.748857] kobject: 'rfkill270' (000000000b4f01f1): calling ktype release [ 48.768061] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 48.792573] kobject: 'rfkill272' (00000000eda42ee5): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill272' [ 48.801027] kobject: 'rfkill273' (00000000bc51a2ad): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill273' [ 48.813619] kobject: 'rfkill270': free name [ 48.815427] 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 [ 48.843339] kobject: 'hci3' (00000000e85a0c55): kobject_uevent_env [ 48.849060] kobject: 'rfkill271' (00000000ac7f35bb): kobject_cleanup, parent (null) [ 48.856263] kobject: 'rfkill274' (00000000355eca42): kobject_add_internal: parent: 'hci2', set: 'devices' [ 48.862290] kobject: 'rfkill273' (00000000bc51a2ad): kobject_uevent_env [ 48.872447] kobject: 'hci3' (00000000e85a0c55): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 48.881689] kobject: 'rfkill271' (00000000ac7f35bb): calling ktype release [ 48.893920] kobject: 'rfkill274' (00000000355eca42): kobject_uevent_env [ 48.904327] kobject: 'rfkill273' (00000000bc51a2ad): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill273' [ 48.909174] kobject: 'rfkill274' (00000000355eca42): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill274' [ 48.918190] RSP: 0018:ffff88809d03f848 EFLAGS: 00010202 [ 48.928472] kobject: 'hci3' (00000000e85a0c55): kobject_cleanup, parent (null) [ 48.935758] kobject: 'rfkill271': free name [ 48.944144] kobject: 'rfkill272' (00000000eda42ee5): kobject_cleanup, parent (null) [ 48.950192] kobject: 'rfkill273' (00000000bc51a2ad): kobject_cleanup, parent (null) [ 48.956867] kobject: 'rfkill274' (00000000355eca42): kobject_uevent_env executing program [ 48.966950] kobject: 'hci5' (000000004e4c25ba): kobject_uevent_env [ 48.987544] kobject: 'hci3' (00000000e85a0c55): calling ktype release [ 49.001591] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87026908 [ 49.012601] kobject: 'rfkill272' (00000000eda42ee5): calling ktype release [ 49.017188] kobject: 'rfkill273' (00000000bc51a2ad): calling ktype release [ 49.038682] kobject: 'rfkill272': free name [ 49.043834] RDX: 0000000000000001 RSI: ffffffff81d2510b RDI: 0000000000000008 [ 49.051457] kobject: 'rfkill274' (00000000355eca42): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill274' [ 49.058021] RBP: ffff88809d03f888 R08: 1ffffffff115121c R09: fffffbfff115121d [ 49.069707] kobject: 'hci3': free name [ 49.080387] kobject: 'hci5' (000000004e4c25ba): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 49.086065] kobject: 'hci4' (00000000c1b8ca1f): kobject_uevent_env [ 49.094260] kobject: 'rfkill273': free name [ 49.098683] kobject: 'hci4' (00000000c1b8ca1f): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' executing program [ 49.107601] kobject: 'hci5' (000000004e4c25ba): kobject_cleanup, parent (null) [ 49.118366] kobject: 'rfkill274' (00000000355eca42): kobject_cleanup, parent (null) [ 49.123401] kobject: 'hci6' (000000001cf5bbcd): kobject_uevent_env [ 49.130452] kobject: 'rfkill274' (00000000355eca42): calling ktype release [ 49.136369] kobject: 'hci6' (000000001cf5bbcd): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6' [ 49.144031] R10: fffffbfff115121c R11: ffffffff88a890e7 R12: ffff8880987907e0 executing program executing program [ 49.150853] kobject: 'hci5' (000000004e4c25ba): calling ktype release [ 49.159022] kobject: 'hci4' (00000000c1b8ca1f): kobject_cleanup, parent (null) [ 49.164592] kobject: 'hci3' (00000000259f08f1): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 49.170649] kobject: 'hci4' (00000000c1b8ca1f): calling ktype release [ 49.181852] kobject: 'hci6' (000000001cf5bbcd): kobject_cleanup, parent (null) [ 49.189902] kobject: 'rfkill274': free name [ 49.193030] kobject: 'hci5': free name [ 49.202886] R13: ffff8880987907e0 R14: 0000000000000000 R15: 0000000000000000 [ 49.209123] kobject: 'hci6' (000000001cf5bbcd): calling ktype release [ 49.213743] kobject: 'hci2' (00000000030a7ccf): kobject_uevent_env [ 49.223232] kobject: 'hci3' (00000000259f08f1): kobject_uevent_env [ 49.231820] kobject: 'hci4': free name [ 49.241281] kobject: 'hci6': free name [ 49.246943] FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000095b4840 [ 49.254602] kobject: 'hci3' (00000000259f08f1): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 49.264348] kobject: 'hci2' (00000000030a7ccf): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 49.273021] kobject: 'hci4' (000000000bd4081a): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 49.279375] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 49.289244] kobject: 'rfkill275' (00000000bb9fd34a): kobject_add_internal: parent: 'hci3', set: 'devices' [ 49.298788] kobject: 'hci2' (00000000030a7ccf): kobject_cleanup, parent (null) [ 49.304859] kobject: 'hci2' (0000000063d2e6e1): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 49.313355] kobject: 'hci5' (0000000009358390): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 49.316804] kobject: 'hci4' (000000000bd4081a): kobject_uevent_env [ 49.320794] kobject: 'hci5' (0000000009358390): kobject_uevent_env [ 49.328302] kobject: 'hci2' (0000000063d2e6e1): kobject_uevent_env [ 49.335349] kobject: 'hci2' (00000000030a7ccf): calling ktype release [ 49.341697] kobject: 'rfkill275' (00000000bb9fd34a): kobject_uevent_env [ 49.348327] CR2: 00007fb2d12ef000 CR3: 00000000a989f000 CR4: 00000000001406f0 [ 49.352478] kobject: 'hci4' (000000000bd4081a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 49.357128] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.365490] kobject: 'hci2' (0000000063d2e6e1): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 49.375224] kobject: 'hci5' (0000000009358390): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 49.385251] kobject: 'rfkill275' (00000000bb9fd34a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill275' [ 49.395281] kobject: 'hci2': free name [ 49.401217] kobject: 'rfkill276' (0000000099dec1dc): kobject_add_internal: parent: 'hci4', set: 'devices' [ 49.413452] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.420137] kobject: 'rfkill275' (00000000bb9fd34a): kobject_uevent_env [ 49.432616] Kernel panic - not syncing: Fatal exception [ 49.439629] kobject: 'rfkill276' (0000000099dec1dc): kobject_uevent_env [ 49.446689] Kernel Offset: disabled [ 49.570220] Rebooting in 86400 seconds..