debugfs: Directory '0' with parent 'hci5' already present!
list_add double add: new=ffff888092f3a420, prev=ffff888092f3a420, next=ffff88821b778b00.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:29!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1541 Comm: kworker/u5:0 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci5 hci_rx_work
RIP: 0010:__list_add_valid.cold+0x26/0x3c lib/list_debug.c:29
Code: 57 ff ff ff 4c 89 e1 48 c7 c7 20 d7 93 88 e8 c1 ac c0 fd 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 d8 93 88 e8 aa ac c0 fd <0f> 0b 48 89 f1 48 c7 c7 e0 d7 93 88 4c 89 e6 e8 96 ac c0 fd 0f 0b
RSP: 0018:ffffc900058c7830 EFLAGS: 00010282
RAX: 0000000000000058 RBX: ffff88821b778b00 RCX: 0000000000000000
RDX: ffff8880a4b50180 RSI: ffffffff815db807 RDI: fffff52000b18ef8
RBP: ffff888092f3a420 R08: 0000000000000058 R09: ffff8880ae631927
R10: 0000000000000000 R11: 000000000006f2a8 R12: ffff88821b778b00
R13: ffff888056285288 R14: ffff888092f3a438 R15: ffff888092f3a420
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000742138 CR3: 0000000051288000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_add include/linux/list.h:67 [inline]
 list_add_tail include/linux/list.h:100 [inline]
 kobj_kset_join lib/kobject.c:196 [inline]
 kobject_add_internal+0x18d/0x940 lib/kobject.c:246
 kobject_add_varg lib/kobject.c:390 [inline]
 kobject_add+0x150/0x1c0 lib/kobject.c:442
 device_add+0x35a/0x1c40 drivers/base/core.c:2863
 hci_conn_add_sysfs+0x84/0xe0 net/bluetooth/hci_sysfs.c:53
 hci_conn_complete_evt net/bluetooth/hci_event.c:2623 [inline]
 hci_event_packet+0x1286/0x87a8 net/bluetooth/hci_event.c:6058
 hci_rx_work+0x22e/0xb50 net/bluetooth/hci_core.c:4889
 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace dfbd779c2944ca1c ]---
RIP: 0010:__list_add_valid.cold+0x26/0x3c lib/list_debug.c:29
Code: 57 ff ff ff 4c 89 e1 48 c7 c7 20 d7 93 88 e8 c1 ac c0 fd 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 d8 93 88 e8 aa ac c0 fd <0f> 0b 48 89 f1 48 c7 c7 e0 d7 93 88 4c 89 e6 e8 96 ac c0 fd 0f 0b
RSP: 0018:ffffc900058c7830 EFLAGS: 00010282
RAX: 0000000000000058 RBX: ffff88821b778b00 RCX: 0000000000000000
RDX: ffff8880a4b50180 RSI: ffffffff815db807 RDI: fffff52000b18ef8
RBP: ffff888092f3a420 R08: 0000000000000058 R09: ffff8880ae631927
R10: 0000000000000000 R11: 000000000006f2a8 R12: ffff88821b778b00
R13: ffff888056285288 R14: ffff888092f3a438 R15: ffff888092f3a420
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000742138 CR3: 0000000009a8d000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400