Bluetooth: hci4: unexpected event 0x06 length: 4 > 3
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WARNING: net/bluetooth/hci_conn.c:567 at hci_conn_timeout+0xff/0x2d0 net/bluetooth/hci_conn.c:567, CPU#0: kworker/u9:3/5832
Modules linked in:
CPU: 0 UID: 0 PID: 5832 Comm: kworker/u9:3 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: hci4 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0xff/0x2d0 net/bluetooth/hci_conn.c:567
Code: 48 89 df e8 83 77 09 00 eb 07 e8 ac 33 61 f7 b0 13 0f b6 f0 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 27 bb fe ff e8 92 33 61 f7 90 <0f> 0b 90 eb 8c 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 31 ff ff ff
RSP: 0018:ffffc900040dfa50 EFLAGS: 00010293

RAX: ffffffff8a60e9be RBX: ffff888034f90000 RCX: ffff88807bdbdb80
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: 00000000ffffffff R08: ffff888034f90013 R09: 1ffff110069f2002
R10: dffffc0000000000 R11: ffffed10069f2003 R12: dffffc0000000000
R13: 1ffff1100f7b7c00 R14: ffff888034f90a40 R15: ffff888034f90010
FS:  0000000000000000(0000) GS:ffff888125a6e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c08f088660 CR3: 00000000620b0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 process_one_work+0x93a/0x15e0 kernel/workqueue.c:3261
 process_scheduled_works kernel/workqueue.c:3344 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3425
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>