Bluetooth: hci3: command 0x0c1a tx timeout
------------[ cut here ]------------
refcnt < 0
WARNING: net/bluetooth/hci_conn.c:641 at hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:641, CPU#1: kworker/u9:5/5609
Modules linked in:
CPU: 1 UID: 0 PID: 5609 Comm: kworker/u9:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: hci3 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:641
Code: 44 0f b6 2d 33 c0 78 06 31 ff 41 83 e5 40 44 89 ee e8 fa 2f 44 f7 45 84 ed 0f 84 02 ff ff ff e9 2d 13 aa f6 e8 d7 35 44 f7 90 <0f> 0b 90 e8 ce 35 44 f7 48 8d bb ed f5 ff ff 48 b8 00 00 00 00 00
RSP: 0018:ffffc900038d7bf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807cb48a50 RCX: 0000000000000000
RDX: ffff88807f7dcb00 RSI: ffffffff8ac80ef9 RDI: ffff88807f7dcb00
RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000000 R12: ffff88807cb48000
R13: ffff88807f7dcfc4 R14: 0000000000000000 R15: ffff88803316e400
FS:  0000000000000000(0000) GS:ffff888123c4f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe2371e5350 CR3: 00000000752cc000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>