[ 24.351086] audit: type=1800 audit(1541799852.424:21): pid=5499 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.372042] audit: type=1800 audit(1541799852.424:22): pid=5499 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 25.495139] sshd (5565) used greatest stack depth: 15136 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.117' (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 syzkaller login: [ 63.454620] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 63.484207] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 63.491872] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program [ 63.501219] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 64.557164] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 64.574781] 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 [ 64.978671] kasan: CONFIG_KASAN_INLINE enabled [ 65.004967] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 65.015252] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 65.015914] kobject: 'hci3' (000000002f873477): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.021510] CPU: 1 PID: 5976 Comm: syz-executor174 Not tainted 4.20.0-rc1-next-20181109+ #109 [ 65.021518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.021543] RIP: 0010:kernfs_add_one+0x342/0x4d0 [ 65.036864] kobject: 'hci5' (00000000d33114d4): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.039875] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 49 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6d 70 49 8d 7d 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 16 01 00 00 45 8b 6d 08 31 ff [ 65.039883] RSP: 0018:ffff8801b94ff5d0 EFLAGS: 00010202 [ 65.039898] RAX: dffffc0000000000 RBX: ffff8801d78771c0 RCX: ffffffff87cd6ac7 [ 65.063684] kobject: 'rfkill310' (000000006dc6d6af): kobject_uevent_env [ 65.082588] RDX: 0000000000000001 RSI: ffffffff81fa80ca RDI: 0000000000000008 [ 65.082598] RBP: ffff8801b94ff618 R08: fffffbfff12d0189 R09: fffffbfff12d0188 [ 65.082606] R10: fffffbfff12d0188 R11: ffffffff89680c47 R12: 0000000000000000 [ 65.082613] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 65.082622] FS: 0000000000816880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 65.082630] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.082638] CR2: 00007f9eebba2000 CR3: 00000001ce353000 CR4: 00000000001406e0 [ 65.082649] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.082656] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.082666] Call Trace: [ 65.110889] kobject: 'hci5' (00000000d33114d4): kobject_uevent_env [ 65.116748] kernfs_create_dir_ns+0xf6/0x160 [ 65.116764] sysfs_create_dir_ns+0x19b/0x340 [ 65.116778] ? sysfs_create_mount_point+0xa0/0xa0 [ 65.116796] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 65.129294] kobject: 'hci3' (000000002f873477): kobject_uevent_env [ 65.131324] ? class_dir_child_ns_type+0xd/0x60 [ 65.131345] kobject_add_internal.cold.11+0x116/0x6af [ 65.164359] kobject: 'rfkill310' (000000006dc6d6af): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill310' [ 65.167924] ? kobj_ns_type_registered+0x60/0x60 [ 65.167944] ? lock_downgrade+0x900/0x900 [ 65.177369] kobject: 'hci3' (000000002f873477): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 65.181224] ? refcount_dec_checked+0x70/0x70 [ 65.181243] ? kasan_check_read+0x11/0x20 [ 65.187438] kobject: 'hci5' (00000000d33114d4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 65.190471] kobject_add+0x13f/0x1b0 [ 65.190488] ? kset_create_and_add+0x190/0x190 [ 65.197326] kobject: 'rfkill310' (000000006dc6d6af): kobject_uevent_env [ 65.201539] ? mutex_unlock+0xd/0x10 [ 65.201552] ? device_add+0x382/0x18e0 [ 65.201568] device_add+0x445/0x18e0 [ 65.229035] kobject: 'rfkill311' (00000000f659e1b6): kobject_add_internal: parent: 'hci3', set: 'devices' [ 65.231190] ? kfree_const+0x5e/0x70 [ 65.231210] ? get_device_parent.isra.25+0x5a0/0x5a0 [ 65.249022] kobject: 'rfkill310' (000000006dc6d6af): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill310' [ 65.249447] ? dev_set_name+0xad/0xe0 [ 65.296605] kobject: 'rfkill311' (00000000f659e1b6): kobject_uevent_env [ 65.298740] ? device_initialize+0x5f0/0x5f0 [ 65.298763] hci_register_dev+0x3b3/0x9c0 [ 65.332673] kobject: 'rfkill311' (00000000f659e1b6): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill311' [ 65.333827] ? _copy_from_iter_full+0x2d8/0xce0 [ 65.333847] ? hci_conn_params_free+0x810/0x810 [ 65.354078] ? iov_iter_advance+0x13f0/0x13f0 [ 65.358593] __vhci_create_device+0x2c1/0x580 [ 65.363102] vhci_write+0x2de/0x470 [ 65.366742] __vfs_write+0x6b8/0x9f0 [ 65.366950] kobject: 'rfkill312' (00000000aa57f998): kobject_add_internal: parent: 'hci2', set: 'devices' [ 65.370461] ? kernel_read+0x120/0x120 [ 65.370477] ? apparmor_path_rmdir+0x30/0x30 [ 65.370495] ? apparmor_file_permission+0x24/0x30 [ 65.390980] kobject: 'rfkill312' (00000000aa57f998): kobject_uevent_env [ 65.393490] ? rw_verify_area+0x118/0x360 [ 65.393504] vfs_write+0x1fc/0x560 [ 65.393519] ksys_write+0x101/0x260 [ 65.393539] ? __ia32_sys_read+0xb0/0xb0 [ 65.404477] kobject: 'rfkill312' (00000000aa57f998): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill312' [ 65.407952] ? trace_hardirqs_off_caller+0x300/0x300 [ 65.407972] __x64_sys_write+0x73/0xb0 [ 65.419032] kobject: 'rfkill312' (00000000aa57f998): kobject_uevent_env [ 65.426629] do_syscall_64+0x1b9/0x820 [ 65.426654] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 65.426669] ? syscall_return_slowpath+0x5e0/0x5e0 executing program [ 65.426685] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.440218] kobject: 'rfkill312' (00000000aa57f998): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill312' [ 65.442395] ? trace_hardirqs_on_caller+0x310/0x310 [ 65.442412] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 65.442428] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.442445] ? prepare_exit_to_usermode+0x291/0x3b0 [ 65.447720] kobject: 'rfkill312' (00000000aa57f998): kobject_cleanup, parent (null) [ 65.451681] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.451703] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.456791] kobject: 'rfkill312' (00000000aa57f998): calling ktype release [ 65.461433] RIP: 0033:0x440e49 [ 65.461448] 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 [ 65.461459] RSP: 002b:00007ffd99cd2688 EFLAGS: 00000213 ORIG_RAX: 0000000000000001 [ 65.472901] kobject: 'rfkill309' (00000000a6601c6f): kobject_cleanup, parent (null) [ 65.477354] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e49 [ 65.477363] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 65.477370] RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8 [ 65.477381] R10: 0000000000816880 R11: 0000000000000213 R12: 000000000000fd8d [ 65.483469] kobject: 'rfkill313' (000000007797bdeb): kobject_add_internal: parent: 'hci5', set: 'devices' [ 65.487903] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 executing program [ 65.493238] kobject: 'rfkill313' (000000007797bdeb): kobject_uevent_env [ 65.501550] Modules linked in: [ 65.502438] kobject: 'rfkill312': free name [ 65.507385] kobject: 'rfkill309' (00000000a6601c6f): calling ktype release [ 65.511823] kobject: 'hci2' (00000000930cebc2): kobject_uevent_env [ 65.518805] kobject: 'rfkill309': free name [ 65.518896] kobject: 'hci0' (00000000c2f27062): kobject_uevent_env [ 65.522502] kobject: 'hci2' (00000000930cebc2): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 65.541370] kobject: 'rfkill313' (000000007797bdeb): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill313' [ 65.549260] kobject: 'hci2' (00000000930cebc2): kobject_cleanup, parent (null) [ 65.574655] kobject: 'rfkill310' (000000006dc6d6af): kobject_cleanup, parent (null) [ 65.579555] kobject: 'hci2' (00000000930cebc2): calling ktype release [ 65.587108] kobject: 'rfkill311' (00000000f659e1b6): kobject_uevent_env [ 65.596899] kobject: 'hci2': free name [ 65.604482] kobject: 'rfkill313' (000000007797bdeb): kobject_uevent_env [ 65.612002] ---[ end trace 608881dc0112aa6a ]--- [ 65.614350] kobject: 'hci0' (00000000c2f27062): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 65.618534] RIP: 0010:kernfs_add_one+0x342/0x4d0 [ 65.625407] kobject: 'rfkill310' (000000006dc6d6af): calling ktype release [ 65.633806] kobject: 'hci2' (0000000055cd7ef2): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.635964] kobject: 'rfkill313' (000000007797bdeb): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill313' [ 65.642458] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 49 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6d 70 49 8d 7d 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 16 01 00 00 45 8b 6d 08 31 ff [ 65.651918] kobject: 'rfkill311' (00000000f659e1b6): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill311' [ 65.663586] kobject: 'hci2' (0000000055cd7ef2): kobject_uevent_env [ 65.672711] kobject: 'hci0' (00000000c2f27062): kobject_cleanup, parent (null) [ 65.680211] RSP: 0018:ffff8801b94ff5d0 EFLAGS: 00010202 [ 65.687951] kobject: 'rfkill313' (000000007797bdeb): kobject_cleanup, parent (null) [ 65.693673] kobject: 'hci2' (0000000055cd7ef2): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 65.697264] kobject: 'rfkill310': free name [ 65.704346] kobject: 'rfkill311' (00000000f659e1b6): kobject_cleanup, parent (null) [ 65.710091] kobject: 'rfkill313' (000000007797bdeb): calling ktype release [ 65.718893] kobject: 'rfkill314' (000000005130491c): kobject_add_internal: parent: 'hci2', set: 'devices' [ 65.725155] kobject: 'hci1' (000000002e773594): kobject_uevent_env [ 65.730500] RAX: dffffc0000000000 RBX: ffff8801d78771c0 RCX: ffffffff87cd6ac7 [ 65.740495] kobject: 'hci0' (00000000c2f27062): calling ktype release [ 65.751436] kobject: 'rfkill314' (000000005130491c): kobject_uevent_env [ 65.769957] kobject: 'rfkill313': free name [ 65.781311] kobject: 'rfkill311' (00000000f659e1b6): calling ktype release [ 65.787595] kobject: 'hci1' (000000002e773594): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 65.795941] kobject: 'rfkill311': free name [ 65.802412] RDX: 0000000000000001 RSI: ffffffff81fa80ca RDI: 0000000000000008 executing program executing program [ 65.810055] kobject: 'rfkill314' (000000005130491c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill314' [ 65.819492] kobject: 'hci1' (000000002e773594): kobject_cleanup, parent (null) [ 65.824100] kobject: 'hci3' (000000002f873477): kobject_uevent_env [ 65.832525] kobject: 'hci5' (00000000d33114d4): kobject_uevent_env [ 65.839712] kobject: 'hci3' (000000002f873477): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 65.849327] kobject: 'hci0': free name [ 65.856313] kobject: 'rfkill314' (000000005130491c): kobject_uevent_env [ 65.864634] kobject: 'hci1' (000000002e773594): calling ktype release [ 65.869774] kobject: 'rfkill314' (000000005130491c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill314' [ 65.876372] RBP: ffff8801b94ff618 R08: fffffbfff12d0189 R09: fffffbfff12d0188 [ 65.881068] kobject: 'hci3' (000000002f873477): kobject_cleanup, parent (null) [ 65.890050] kobject: 'hci5' (00000000d33114d4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' executing program [ 65.897807] kobject: 'rfkill314' (000000005130491c): kobject_cleanup, parent (null) [ 65.904570] kobject: 'hci1': free name [ 65.911029] kobject: 'hci0' (000000005a3afe7a): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.921022] kobject: 'hci3' (000000002f873477): calling ktype release [ 65.928986] kobject: 'rfkill314' (000000005130491c): calling ktype release [ 65.935859] kobject: 'hci1' (00000000b003a7e4): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 65.941704] R10: fffffbfff12d0188 R11: ffffffff89680c47 R12: 0000000000000000 [ 65.950692] kobject: 'hci3': free name [ 65.954872] kobject: 'rfkill314': free name [ 65.962671] kobject: 'hci5' (00000000d33114d4): kobject_cleanup, parent (null) [ 65.968229] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 65.980105] kobject: 'hci0' (000000005a3afe7a): kobject_uevent_env [ 65.987009] kobject: 'hci2' (0000000055cd7ef2): kobject_uevent_env [ 65.994900] kobject: 'hci1' (00000000b003a7e4): kobject_uevent_env [ 66.004362] FS: 0000000000816880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 executing program [ 66.014256] kobject: 'hci3' (00000000447de8e7): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 66.017498] kobject: 'hci2' (0000000055cd7ef2): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 66.026490] kobject: 'hci5' (00000000d33114d4): calling ktype release [ 66.033337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.040117] kobject: 'hci0' (000000005a3afe7a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 66.050330] kobject: 'hci2' (0000000055cd7ef2): kobject_cleanup, parent (null) [ 66.058231] kobject: 'hci5': free name [ 66.061374] CR2: 00007ffd99cd2694 CR3: 00000001ce353000 CR4: 00000000001406e0 [ 66.065601] kobject: 'hci3' (00000000447de8e7): kobject_uevent_env [ 66.074010] kobject: 'hci2' (0000000055cd7ef2): calling ktype release [ 66.081002] kobject: 'hci1' (00000000b003a7e4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 66.087655] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.094827] kobject: 'hci3' (00000000447de8e7): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 66.100886] kobject: 'hci2': free name [ 66.112667] kobject: 'rfkill315' (000000007851dc3c): kobject_add_internal: parent: 'hci0', set: 'devices' [ 66.118893] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.130098] kobject: 'hci2' (000000009dc2d38a): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 66.135577] Kernel panic - not syncing: Fatal exception [ 66.140416] kobject: 'hci2' (000000009dc2d38a): kobject_uevent_env [ 66.151564] Kernel Offset: disabled [ 66.256492] Rebooting in 86400 seconds..