[ 36.086720] audit: type=1800 audit(1551900787.112:27): pid=7511 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 36.118893] audit: type=1800 audit(1551900787.112:28): pid=7511 uid=0 auid=4294967295 ses=4294967295 subj=_ 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. [ 36.825450] audit: type=1800 audit(1551900787.902:29): pid=7511 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 36.844275] audit: type=1800 audit(1551900787.902:30): pid=7511 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.13' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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: [ 92.317744] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 92.340754] Bluetooth: Can't register HCI device [ 92.353579] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program [ 92.390985] 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 [ 92.581250] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 92.603445] 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 [ 92.776601] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 92.806181] 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 [ 92.861838] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 92.889138] 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 [ 92.927165] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 92.939242] 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 [ 93.316943] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 93.340221] 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 [ 93.522924] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 93.530992] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 93.548071] kasan: CONFIG_KASAN_INLINE enabled [ 93.548716] Bluetooth: Can't register HCI device [ 93.553069] Bluetooth: Can't register HCI device executing program [ 93.572114] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 93.584730] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 93.585038] kobject: 'rfkill344' (0000000002cdfbbe): kobject_uevent_env [ 93.590983] CPU: 0 PID: 8023 Comm: syz-executor873 Not tainted 5.0.0+ #8 [ 93.590991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.591009] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 93.591025] 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 [ 93.598295] kobject: 'hci0' (00000000579f20d0): kobject_uevent_env [ 93.604602] RSP: 0018:ffff8880a0b3f858 EFLAGS: 00010202 [ 93.604613] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8705eb68 [ 93.604621] RDX: 0000000000000001 RSI: ffffffff81d2fccb RDI: 0000000000000008 [ 93.604630] RBP: ffff8880a0b3f898 R08: 1ffffffff1151404 R09: fffffbfff1151405 [ 93.604638] R10: fffffbfff1151404 R11: ffffffff88a8a027 R12: ffff8880a4727ee0 [ 93.604645] R13: ffff8880a4727ee0 R14: 0000000000000000 R15: 0000000000000000 [ 93.604656] FS: 00000000019fc880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 93.604664] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.604672] CR2: 00000000004bf6c8 CR3: 00000000964dd000 CR4: 00000000001406f0 [ 93.604681] Call Trace: [ 93.604701] kernfs_create_dir_ns+0xff/0x160 [ 93.604717] sysfs_create_dir_ns+0x131/0x2a0 [ 93.604730] ? sysfs_create_mount_point+0xa0/0xa0 [ 93.604752] ? class_dir_child_ns_type+0xd/0x60 [ 93.625671] kobject: 'hci4' (00000000b268e4f9): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 93.637745] kobject_add_internal.cold+0xe5/0x5d4 [ 93.637761] kobject_add+0x150/0x1c0 [ 93.637773] ? kset_create_and_add+0x1a0/0x1a0 [ 93.637793] ? mutex_unlock+0xd/0x10 [ 93.637808] ? device_add+0x30f/0x1870 [ 93.656685] kobject: 'rfkill344' (0000000002cdfbbe): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill344' [ 93.658097] device_add+0x3d5/0x1870 [ 93.658114] ? device_initialize+0x440/0x440 [ 93.658129] ? get_device_parent.isra.0+0x570/0x570 [ 93.692732] kobject: 'hci0' (00000000579f20d0): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 93.695416] hci_register_dev+0x304/0x880 [ 93.695440] __vhci_create_device+0x2d0/0x5a0 [ 93.706637] kobject: 'rfkill344' (0000000002cdfbbe): kobject_cleanup, parent (null) [ 93.708801] vhci_write+0x2d0/0x470 [ 93.708818] __vfs_write+0x613/0x8e0 [ 93.708833] ? kernel_read+0x120/0x120 executing program [ 93.726095] kobject: 'rfkill344' (0000000002cdfbbe): calling ktype release [ 93.729696] ? __handle_mm_fault+0x7cd/0x3f20 [ 93.729714] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 93.729730] ? __do_page_fault+0x610/0xd60 [ 93.729747] ? rw_verify_area+0x118/0x360 [ 93.746046] kobject: 'hci4' (00000000b268e4f9): kobject_uevent_env [ 93.748001] vfs_write+0x20c/0x580 [ 93.748017] ksys_write+0xea/0x1f0 [ 93.748032] ? __ia32_sys_read+0xb0/0xb0 [ 93.756946] kobject: 'hci0' (00000000579f20d0): kobject_cleanup, parent (null) [ 93.760191] ? do_syscall_64+0x26/0x610 [ 93.760205] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.760217] ? do_syscall_64+0x26/0x610 [ 93.760234] __x64_sys_write+0x73/0xb0 [ 93.760251] do_syscall_64+0x103/0x610 [ 93.790591] kobject: 'hci4' (00000000b268e4f9): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 93.793930] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.793948] RIP: 0033:0x441139 executing program [ 93.793963] 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 [ 93.811662] kobject: 'rfkill345' (00000000774a2e37): kobject_add_internal: parent: 'hci4', set: 'devices' [ 93.814916] RSP: 002b:00007fff4909c828 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 93.814929] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441139 [ 93.814945] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 93.814956] RBP: 0000000000016d0d R08: 00000000004002c8 R09: 00000000004002c8 [ 93.820628] kobject: 'rfkill344': free name [ 93.822575] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401eb0 [ 93.822584] R13: 0000000000401f40 R14: 0000000000000000 R15: 0000000000000000 [ 93.822596] Modules linked in: [ 93.827613] kobject: 'hci0' (00000000482e0941): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 93.836866] kobject: 'rfkill345' (00000000774a2e37): kobject_uevent_env [ 93.839927] kobject: 'hci0' (00000000482e0941): kobject_uevent_env [ 93.850379] kobject: 'hci0' (00000000579f20d0): calling ktype release [ 93.854724] kobject: 'hci0' (00000000482e0941): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 93.874518] kobject: 'hci0': free name [ 93.878851] ---[ end trace 42500ea766b3a94e ]--- [ 93.887383] kobject: 'rfkill345' (00000000774a2e37): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill345' [ 93.891450] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 93.895330] kobject: 'hci2' (00000000b3481241): kobject_uevent_env [ 93.904640] 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 [ 93.952200] kobject: 'hci5' (000000008a12dc17): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 93.957705] kobject: 'rfkill343' (0000000005709bee): kobject_cleanup, parent (null) [ 93.978512] kobject: 'hci2' (00000000b3481241): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 93.983787] kobject: 'rfkill346' (00000000b9603cc9): kobject_add_internal: parent: 'hci0', set: 'devices' [ 94.024669] kobject: 'hci5' (000000008a12dc17): kobject_uevent_env [ 94.033332] kobject: 'rfkill343' (0000000005709bee): calling ktype release [ 94.055859] kobject: 'hci2' (00000000b3481241): kobject_cleanup, parent (null) [ 94.057776] kobject: 'rfkill343': free name [ 94.082091] kobject: 'hci5' (000000008a12dc17): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 94.083200] kobject: 'hci1' (00000000edf76643): kobject_uevent_env [ 94.102644] kobject: 'hci2' (00000000b3481241): calling ktype release [ 94.111310] RSP: 0018:ffff8880a0b3f858 EFLAGS: 00010202 [ 94.142065] kobject: 'rfkill346' (00000000b9603cc9): kobject_uevent_env [ 94.142848] kobject: 'hci1' (00000000edf76643): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 94.155973] kobject: 'rfkill346' (00000000b9603cc9): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill346' [ 94.156762] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8705eb68 [ 94.166458] kobject: 'hci2': free name [ 94.169879] kobject: 'hci1' (00000000edf76643): kobject_cleanup, parent (null) executing program [ 94.184642] kobject: 'rfkill345' (00000000774a2e37): kobject_uevent_env [ 94.192044] RDX: 0000000000000001 RSI: ffffffff81d2fccb RDI: 0000000000000008 [ 94.202531] kobject: 'rfkill347' (000000005120ee1d): kobject_add_internal: parent: 'hci5', set: 'devices' [ 94.209808] kobject: 'hci1' (00000000edf76643): calling ktype release [ 94.215592] kobject: 'rfkill346' (00000000b9603cc9): kobject_uevent_env [ 94.222294] RBP: ffff8880a0b3f898 R08: 1ffffffff1151404 R09: fffffbfff1151405 [ 94.232704] kobject: 'rfkill347' (000000005120ee1d): kobject_uevent_env [ 94.236546] kobject: 'hci1': free name [ 94.252841] kobject: 'hci1' (00000000444934b9): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 94.259823] R10: fffffbfff1151404 R11: ffffffff88a8a027 R12: ffff8880a4727ee0 [ 94.270213] kobject: 'rfkill346' (00000000b9603cc9): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill346' [ 94.274021] R13: ffff8880a4727ee0 R14: 0000000000000000 R15: 0000000000000000 [ 94.285462] kobject: 'hci1' (00000000444934b9): kobject_uevent_env executing program [ 94.287631] kobject: 'rfkill345' (00000000774a2e37): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill345' [ 94.300227] kobject: 'rfkill347' (000000005120ee1d): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill347' [ 94.307022] FS: 00000000019fc880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 94.323328] kobject: 'hci1' (00000000444934b9): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 94.331071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.351417] kobject: 'hci2' (00000000407645de): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 94.360000] kobject: 'rfkill347' (000000005120ee1d): kobject_uevent_env [ 94.365184] kobject: 'rfkill346' (00000000b9603cc9): kobject_cleanup, parent (null) [ 94.375188] CR2: 00000000004bf6c8 CR3: 00000000964dd000 CR4: 00000000001406f0 [ 94.381773] kobject: 'rfkill345' (00000000774a2e37): kobject_cleanup, parent (null) [ 94.390826] kobject: 'rfkill348' (00000000487dd3c9): kobject_add_internal: parent: 'hci1', set: 'devices' [ 94.413419] kobject: 'rfkill345' (00000000774a2e37): calling ktype release [ 94.416492] kobject: 'rfkill347' (000000005120ee1d): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill347' [ 94.434474] Kernel panic - not syncing: Fatal exception [ 94.437695] kobject: 'rfkill346' (00000000b9603cc9): calling ktype release [ 94.440505] Kernel Offset: disabled [ 94.451109] Rebooting in 86400 seconds..