Bluetooth: hci5: unexpected event for opcode 0x1408
Bluetooth: hci5: unexpected event for opcode 0x1408
Bluetooth: hci5: unexpected event for opcode 0x1408
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WARNING: CPU: 0 PID: 5936 at net/bluetooth/hci_conn.c:567 hci_conn_timeout+0x11a/0x210 net/bluetooth/hci_conn.c:567
Modules linked in:
CPU: 0 UID: 0 PID: 5936 Comm: kworker/u33:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci5 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x11a/0x210 net/bluetooth/hci_conn.c:567
Code: 00 e8 4a 6c 5e f7 4c 89 f1 4c 89 e2 48 c7 c6 a0 9d d8 8c 48 c7 c7 48 cd 7e 90 e8 81 9d 7f fa e9 4d ff ff ff e8 27 6c 5e f7 90 <0f> 0b 90 e8 1e 6c 5e f7 48 8d bb f5 f6 ff ff 48 b8 00 00 00 00 00
RSP: 0018:ffffc90003aa7c20 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802edec948 RCX: ffffffff8a5ecbdf
RDX: ffff888025614900 RSI: ffffffff8a5ecc89 RDI: 0000000000000005
RBP: 00000000ffffffe0 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffe0 R11: 0000000000000001 R12: ffff88802edec000
R13: 0000000000000000 R14: ffffffff90835e54 R15: ffffc90003aa7d00
FS:  0000000000000000(0000) GS:ffff8880d69d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f55fd372b60 CR3: 000000005fd05000 CR4: 0000000000352ef0
DR0: 000000000000263e DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>