------------[ cut here ]------------
WARNING: CPU: 0 PID: 4672 at net/bluetooth/hci_conn.c:568 hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:568
Modules linked in:
CPU: 0 UID: 0 PID: 4672 Comm: kworker/u5:1 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #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: hci0 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:568
Code: 48 89 df e8 93 fd 08 00 eb 07 e8 ec 8b 67 f7 b0 13 0f b6 f0 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 47 c3 fe ff e8 d2 8b 67 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:ffffc9000d03faf0 EFLAGS: 00010293
RAX: ffffffff8a5841ae RBX: ffff8880401ec000 RCX: ffff88801da58000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: 00000000ffffffff R08: ffff8880401ec013 R09: 1ffff1100803d802
R10: dffffc0000000000 R11: ffffed100803d803 R12: dffffc0000000000
R13: ffff88801bb6d018 R14: ffff8880401ec948 R15: ffff8880401ec010
FS:  0000000000000000(0000) GS:ffff88808d2a3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4fa7f18fc8 CR3: 00000000401aa000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>