------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci2
WARNING: CPU: 1 PID: 43 at kernel/workqueue.c:2258 __queue_work+0x2e5/0x1010 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 43 Comm: kworker/1:1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events l2cap_chan_timeout
RIP: 0010:__queue_work+0x2e5/0x1010 kernel/workqueue.c:2256
Code: 42 80 3c 28 00 74 08 48 89 ef e8 c6 9a 96 00 48 8b 75 00 49 81 c6 68 01 00 00 48 c7 c7 20 f4 e9 8a 4c 89 f2 e8 2c 31 f9 ff 90 <0f> 0b 90 90 e9 f2 fe ff ff e8 9d e8 34 00 eb 2e e8 96 e8 34 00 e9
RSP: 0018:ffffc90000b47788 EFLAGS: 00010046
RAX: 29c8bb404636a500 RBX: 0000000000000020 RCX: ffff88801c6d5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88805ca109e0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed101712487b R12: 0000000000000008
R13: dffffc0000000000 R14: ffff888027678168 R15: ffff88801c6d5a2c
FS:  0000000000000000(0000) GS:ffff888126cc6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562f3e29d000 CR3: 0000000051cd6000 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>