------------[ cut here ]------------
WARNING: CPU: 2 PID: 5947 at net/bluetooth/hci_conn.c:568 hci_conn_timeout+0x11a/0x210 net/bluetooth/hci_conn.c:568
Modules linked in:
CPU: 2 UID: 0 PID: 5947 Comm: kworker/u33:2 Not tainted 6.15.0-rc4-syzkaller-00208-g00b827f0cffa #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: hci4 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x11a/0x210 net/bluetooth/hci_conn.c:568
Code: 00 e8 ea 7c 52 f7 4c 89 f1 4c 89 e2 48 c7 c6 80 a9 d8 8c 48 c7 c7 00 93 80 90 e8 a1 47 98 fa e9 4d ff ff ff e8 c7 7c 52 f7 90 <0f> 0b 90 e8 be 7c 52 f7 48 8d bb f5 f6 ff ff 48 b8 00 00 00 00 00
RSP: 0000:ffffc9000393fc38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888026968948 RCX: ffffffff8a68b57f
RDX: ffff88802629a440 RSI: ffffffff8a68b629 RDI: 0000000000000005
RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000002bc0 R12: ffff888026968000
R13: 0000000000000000 R14: ffffffff90852eb4 R15: ffffc9000393fd18
FS:  0000000000000000(0000) GS:ffff8880d6be1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4217287059 CR3: 000000000e180000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>