------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci0
WARNING: CPU: 0 PID: 8629 at kernel/workqueue.c:2258 __queue_work+0xd38/0xfb0 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 8629 Comm: kworker/0:11 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events l2cap_chan_timeout
RIP: 0010:__queue_work+0xd38/0xfb0 kernel/workqueue.c:2256
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 f3 b2 9b 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 20 eb 69 8b 4c 89 fa e8 b9 31 f9 ff 90 <0f> 0b 90 90 e9 1a f5 ff ff e8 9a 14 36 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90003567790 EFLAGS: 00010046
RAX: 3326e4b3c9ad1900 RBX: 0000000000000020 RCX: ffff888023853c80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff11029b97f38 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa658 R12: dffffc0000000000
R13: ffff88804bfa8960 R14: ffff88801a680808 R15: ffff88814dcbf978
FS:  0000000000000000(0000) GS:ffff888125d0f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8ad27b12f8 CR3: 000000000df38000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 queue_delayed_work_on+0x18b/0x280 kernel/workqueue.c:2561
 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: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>