Bluetooth: Can't register HCI device kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) Bluetooth: Can't register HCI device kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN kobject: 'hci5' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' CPU: 0 PID: 13423 Comm: syz-executor.1 Not tainted 4.18.0-rc2+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kernfs_add_one+0x27f/0x410 fs/kernfs/dir.c:795 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 42 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 0f 01 00 00 kobject: 'rfkill3174' ((____ptrval____)): kobject_uevent_env 41 f6 45 08 01 0f RSP: 0018:ffff88008804f918 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8800a546f460 RCX: ffffffff86654218 RDX: 0000000000000001 RSI: 1ffff10011009f0e RDI: 0000000000000008 RBP: ffff88008804f950 R08: fffffbfff100d809 R09: fffffbfff100d808 R10: fffffbfff100d808 R11: ffffffff8806c047 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8800a546f4b0 FS: 00007f743b367700(0000) GS:ffff8800aec00000(0000) knlGS:0000000000000000 kobject: 'rfkill3175' ((____ptrval____)): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'hci4' ((____ptrval____)): kobject_uevent_env CR2: 0000000000607304 CR3: 000000008f812000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kernfs_create_dir_ns+0xc9/0x120 fs/kernfs/dir.c:1009 kobject: 'hci4' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' sysfs_create_dir_ns+0xa2/0x1b0 fs/sysfs/dir.c:54 create_dir lib/kobject.c:69 [inline] kobject_add_internal.cold.11+0xd1/0x4bf lib/kobject.c:228 kobject_add_varg lib/kobject.c:363 [inline] kobject_add+0x10f/0x170 lib/kobject.c:407 kobject: 'rfkill3174' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill3174' device_add+0x33e/0x1630 drivers/base/core.c:1829 hci_register_dev+0x29b/0x750 net/bluetooth/hci_core.c:3108 __vhci_create_device+0x272/0x500 drivers/bluetooth/hci_vhci.c:139 vhci_create_device drivers/bluetooth/hci_vhci.c:163 [inline] vhci_get_user drivers/bluetooth/hci_vhci.c:219 [inline] vhci_write+0x28a/0x3f0 drivers/bluetooth/hci_vhci.c:299 call_write_iter include/linux/fs.h:1795 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x446/0x880 fs/read_write.c:487 kobject: 'hci6' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' vfs_write+0x150/0x4f0 fs/read_write.c:549 ksys_write+0xcd/0x1b0 fs/read_write.c:598 kobject: 'hci5' ((____ptrval____)): kobject_uevent_env __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:607 do_syscall_64+0xd0/0x4d0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 kobject: 'hci6' ((____ptrval____)): kobject_uevent_env fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 kobject: 'hci5' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f743b366c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829 RDX: 0000000000000002 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f743b3676d4 R13: 00000000004c9b0d R14: 00000000004e1178 R15: 00000000ffffffff Modules linked in: ---[ end trace fe8a25be8dde3539 ]--- kobject: 'rfkill3175' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3175' RIP: 0010:kernfs_add_one+0x27f/0x410 fs/kernfs/dir.c:795 kobject: 'rfkill3175' ((____ptrval____)): kobject_uevent_env Code: 48 89 fa 48 kobject: 'rfkill3176' ((____ptrval____)): kobject_add_internal: parent: 'hci4', set: 'devices' c1 kobject: 'rfkill3176' ((____ptrval____)): kobject_uevent_env ea kobject: 'rfkill3175' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3175' 03 kobject: 'hci6' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6' 80 kobject: 'rfkill3176' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3176' 3c kobject: 'rfkill3177' ((____ptrval____)): kobject_add_internal: parent: 'hci5', set: 'devices' 02 kobject: 'rfkill3177' ((____ptrval____)): kobject_uevent_env 00 kobject: 'rfkill3177' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill3177' 0f kobject: 'rfkill3176' ((____ptrval____)): kobject_uevent_env 85 kobject: 'rfkill3174' ((____ptrval____)): kobject_cleanup, parent (null) 42 kobject: 'rfkill3174' ((____ptrval____)): calling ktype release kobject: 'rfkill3174': free name kobject: 'hci3' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3176' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3176' kobject: 'rfkill3178' ((____ptrval____)): kobject_add_internal: parent: 'hci6', set: 'devices' 01 kobject: 'rfkill3175' ((____ptrval____)): kobject_cleanup, parent (null) 00 kobject: 'rfkill3175' ((____ptrval____)): calling ktype release kobject: 'rfkill3175': free name kobject: 'hci2' ((____ptrval____)): kobject_uevent_env 00 kobject: 'rfkill3177' ((____ptrval____)): kobject_uevent_env 48 kobject: 'rfkill3178' ((____ptrval____)): kobject_uevent_env b8 kobject: 'rfkill3177' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill3177' kobject: 'hci3' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject: 'rfkill3178' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill3178' kobject: 'hci2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kobject: 'rfkill3176' ((____ptrval____)): kobject_cleanup, parent (null) 00 kobject: 'rfkill3177' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci2' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3177' ((____ptrval____)): calling ktype release 00 kobject: 'rfkill3178' ((____ptrval____)): kobject_uevent_env kobject: 'hci3' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3177': free name kobject: 'hci2' ((____ptrval____)): calling ktype release kobject: 'rfkill3176' ((____ptrval____)): calling ktype release 00 kobject: 'rfkill3176': free name kobject: 'hci4' ((____ptrval____)): kobject_uevent_env kobject: 'hci2': free name kobject: 'rfkill3178' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill3178' kobject: 'hci3' ((____ptrval____)): calling ktype release kobject: 'hci5' ((____ptrval____)): kobject_uevent_env kobject: 'hci3': free name 00 kobject: 'hci2' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'loop5' ((____ptrval____)): kobject_uevent_env kobject: 'hci2' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3178' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci3' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'loop5' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'hci2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kobject: 'rfkill3178' ((____ptrval____)): calling ktype release kobject: 'hci3' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3178': free name kobject: 'hci4' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' kobject: 'hci6' ((____ptrval____)): kobject_uevent_env kobject: 'hci5' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' kobject: 'loop2' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3179' ((____ptrval____)): kobject_add_internal: parent: 'hci2', set: 'devices' 00 kobject: 'rfkill3179' ((____ptrval____)): kobject_uevent_env kobject: 'loop2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'hci3' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject: 'hci6' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6' kobject: 'hci4' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci6' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3179' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3179' fc kobject: 'hci5' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci6' ((____ptrval____)): calling ktype release kobject: 'rfkill3180' ((____ptrval____)): kobject_add_internal: parent: 'hci3', set: 'devices' kobject: 'hci4' ((____ptrval____)): calling ktype release kobject: 'rfkill3180' ((____ptrval____)): kobject_uevent_env ff kobject: 'rfkill3179' ((____ptrval____)): kobject_uevent_env kobject: 'hci6': free name kobject: 'rfkill3179' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3179' kobject: 'hci4': free name kobject: 'rfkill3180' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill3180' df kobject: 'hci5' ((____ptrval____)): calling ktype release kobject: 'hci4' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci5': free name 4d kobject: 'rfkill3179' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci5' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'rfkill3180' ((____ptrval____)): kobject_uevent_env kobject: 'loop4' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3179' ((____ptrval____)): calling ktype release kobject: 'hci4' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3180' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill3180' kobject: 'loop4' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'hci6' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci5' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3180' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci4' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' kobject: 'rfkill3179': free name 8b kobject: 'rfkill3180' ((____ptrval____)): calling ktype release kobject: 'rfkill3181' ((____ptrval____)): kobject_add_internal: parent: 'hci4', set: 'devices' kobject: 'hci2' ((____ptrval____)): kobject_uevent_env kobject: 'hci5' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' kobject: 'hci6' ((____ptrval____)): kobject_uevent_env 6d kobject: 'hci6' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6' kobject: 'rfkill3181' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3180': free name kobject: 'rfkill3181' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3181' kobject: 'hci2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' 70 kobject: 'hci3' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3182' ((____ptrval____)): kobject_add_internal: parent: 'hci5', set: 'devices' kobject: 'hci2' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3181' ((____ptrval____)): kobject_uevent_env kobject: 'hci2' ((____ptrval____)): calling ktype release kobject: 'hci2': free name kobject: 'hci2' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci3' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject: 'hci2' ((____ptrval____)): kobject_uevent_env kobject: 'hci3' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kobject: 'rfkill3182' ((____ptrval____)): kobject_uevent_env 49 kobject: 'rfkill3181' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3181' kobject: 'rfkill3182' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill3182' 8d kobject: 'hci3' ((____ptrval____)): calling ktype release 7d kobject: 'rfkill3183' ((____ptrval____)): kobject_add_internal: parent: 'hci6', set: 'devices' 08 kobject: 'rfkill3182' ((____ptrval____)): kobject_uevent_env 48 kobject: 'rfkill3183' ((____ptrval____)): kobject_uevent_env 89 kobject: 'hci3': free name fa kobject: 'rfkill3182' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill3182' 48 kobject: 'rfkill3183' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill3183' c1 kobject: 'hci3' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' ea kobject: 'rfkill3184' ((____ptrval____)): kobject_add_internal: parent: 'hci2', set: 'devices' 03 kobject: 'hci3' ((____ptrval____)): kobject_uevent_env <0f> kobject: 'rfkill3183' ((____ptrval____)): kobject_uevent_env b6 kobject: 'rfkill3183' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6/rfkill3183' 04 kobject: 'rfkill3184' ((____ptrval____)): kobject_uevent_env 02 kobject: 'rfkill3184' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3184' kobject: 'hci3' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject: 'rfkill3181' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3182' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3183' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3182' ((____ptrval____)): calling ktype release kobject: 'rfkill3184' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3185' ((____ptrval____)): kobject_add_internal: parent: 'hci3', set: 'devices' kobject: 'rfkill3181' ((____ptrval____)): calling ktype release 84 kobject: 'rfkill3184' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3184' kobject: 'rfkill3185' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3183' ((____ptrval____)): calling ktype release kobject: 'rfkill3182': free name kobject: 'rfkill3181': free name kobject: 'hci5' ((____ptrval____)): kobject_uevent_env kobject: 'hci4' ((____ptrval____)): kobject_uevent_env kobject: 'hci5' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' c0 kobject: 'rfkill3185' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill3185' 74 kobject: 'hci5' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci4' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' kobject: 'rfkill3185' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3184' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci5' ((____ptrval____)): calling ktype release kobject: 'hci4' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3183': free name kobject: 'rfkill3184' ((____ptrval____)): calling ktype release kobject: 'rfkill3185' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill3185' kobject: 'hci5': free name kobject: 'hci6' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3184': free name 08 kobject: 'hci2' ((____ptrval____)): kobject_uevent_env kobject: 'hci4' ((____ptrval____)): calling ktype release kobject: 'hci2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kobject: 'hci6' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci6' kobject: 'loop0' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3185' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci4' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' 3c kobject: 'loop0' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'hci6' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'hci4': free name kobject: 'hci6' ((____ptrval____)): calling ktype release kobject: 'hci2' ((____ptrval____)): kobject_cleanup, parent (null) 03 kobject: 'hci4' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3185' ((____ptrval____)): calling ktype release kobject: 'hci2' ((____ptrval____)): calling ktype release kobject: 'hci6': free name kobject: 'loop3' ((____ptrval____)): kobject_uevent_env kobject: 'hci2' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci2': free name kobject: 'rfkill3185': free name kobject: 'hci4' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' 0f kobject: 'loop3' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'hci3' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3186' ((____ptrval____)): kobject_add_internal: parent: 'hci4', set: 'devices' kobject: 'hci2' ((____ptrval____)): kobject_uevent_env kobject: 'loop5' ((____ptrval____)): kobject_uevent_env 8e kobject: 'loop5' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'hci2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kobject: 'rfkill3186' ((____ptrval____)): kobject_uevent_env kobject: 'hci3' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject: 'rfkill3186' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3186' 0f kobject: 'hci5' ((____ptrval____)): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci3' ((____ptrval____)): kobject_cleanup, parent (null) kobject: 'rfkill3186' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3187' ((____ptrval____)): kobject_add_internal: parent: 'hci2', set: 'devices' kobject: 'rfkill3186' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill3186' kobject: 'hci3' ((____ptrval____)): calling ktype release kobject: 'hci5' ((____ptrval____)): kobject_uevent_env 01 kobject: 'hci5' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' kobject: 'rfkill3187' ((____ptrval____)): kobject_uevent_env kobject: 'hci3': free name 00 kobject: 'loop2' ((____ptrval____)): kobject_uevent_env kobject: 'rfkill3187' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3187' kobject: 'loop2' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/block/loop2' 00 41 f6 45 08 01 0f RSP: 0018:ffff88008804f918 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8800a546f460 RCX: ffffffff86654218 RDX: 0000000000000001 RSI: 1ffff10011009f0e RDI: 0000000000000008 RBP: ffff88008804f950 R08: fffffbfff100d809 R09: fffffbfff100d808 R10: fffffbfff100d808 R11: ffffffff8806c047 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8800a546f4b0 FS: 00007f743b367700(0000) GS:ffff8800aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'rfkill3186' ((____ptrval____)): kobject_cleanup, parent (null) CR2: 00007f700f816000 CR3: 000000008f812000 CR4: 00000000001406e0 kobject: 'rfkill3188' ((____ptrval____)): kobject_add_internal: parent: 'hci5', set: 'devices' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'rfkill3187' ((____ptrval____)): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'rfkill3187' ((____ptrval____)): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill3187' kobject: 'rfkill3188' ((____ptrval____)): kobject_uevent_env