Bluetooth: hci1: unexpected event 0x09 length: 15 > 3
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci1: unknown advertising packet type: 0xff
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5830 at net/bluetooth/hci_conn.c:567 hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:567
Modules linked in:
CPU: 0 UID: 0 PID: 5830 Comm: kworker/u9:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: hci4 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:567
Code: 48 89 df e8 f3 21 09 00 eb 07 e8 ec fe 7b f7 b0 13 0f b6 f0 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 87 c7 fe ff e8 d2 fe 7b 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:ffffc9000401fa30 EFLAGS: 00010293
RAX: ffffffff8a4407be RBX: ffff888028c5c000 RCX: ffff88807c430000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: 00000000ffffffff R08: ffff888028c5c013 R09: 1ffff1100518b802
R10: dffffc0000000000 R11: ffffed100518b803 R12: dffffc0000000000
R13: ffff8880222d4418 R14: ffff888028c5c948 R15: ffff888028c5c010
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000009b40 CR3: 000000005ed02000 CR4: 00000000003526f0
DR0: ffff8880b8927a20 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>