------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci0
WARNING: CPU: 1 PID: 6002 at kernel/workqueue.c:2256 __queue_work+0xd38/0xfb0 kernel/workqueue.c:2254
Modules linked in:
CPU: 1 UID: 0 PID: 6002 Comm: kworker/1:6 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: events l2cap_chan_timeout
RIP: 0010:__queue_work+0xd38/0xfb0 kernel/workqueue.c:2254
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 a3 1b 99 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 20 e1 89 8b 4c 89 fa e8 99 39 f9 ff 90 <0f> 0b 90 90 e9 1a f5 ff ff e8 ea 9d 35 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90004bc77b0 EFLAGS: 00010046
RAX: fc8763562ca9f200 RBX: 0000000000000020 RCX: ffff88802cf11e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff1100ae67638 R08: ffff8880b8724253 R09: 1ffff110170e484a
R10: dffffc0000000000 R11: ffffed10170e484b R12: dffffc0000000000
R13: ffff888028d90960 R14: ffff88801a494408 R15: ffff88805733b178
FS:  0000000000000000(0000) GS:ffff888125d12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560c6fd67088 CR3: 000000000df36000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 queue_delayed_work_on+0x18b/0x280 kernel/workqueue.c:2559
 l2cap_chan_del+0x285/0x5e0 net/bluetooth/l2cap_core.c:671
 l2cap_chan_close+0x597/0x980 net/bluetooth/l2cap_core.c:-1
 l2cap_chan_timeout+0x158/0x390 net/bluetooth/l2cap_core.c:431
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x439/0x7d0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>