------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci1
WARNING: kernel/workqueue.c:2271 at __queue_work+0xcde/0xfa0, CPU#0: kworker/u8:3/5657
Modules linked in:
CPU: 0 UID: 0 PID: 5657 Comm: kworker/u8:3 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: bat_events batadv_tt_purge
RIP: 0010:__queue_work+0xd0b/0xfa0
Code: 18 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 08 69 a2 00 49 8b 75 00 48 8b 54 24 30 48 81 c2 78 01 00 00 4c 89 f7 <67> 48 0f b9 3a 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d e9 bd b5
RSP: 0018:ffffc90000007c28 EFLAGS: 00010086
RAX: 1ffff1103710b94b RBX: 0000000000000100 RCX: ffff888105fa9d80
RDX: ffff88816e8e8178 RSI: ffffffff8aa67eb0 RDI: ffffffff90147db0
RBP: 0000000000000000 R08: ffffffff901188f7 R09: 1ffffffff202311e
R10: dffffc0000000000 R11: ffffffff818cebf0 R12: dffffc0000000000
R13: ffff8881b885ca58 R14: ffffffff90147db0 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff88818de52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8dfdfdfff8 CR3: 000000000e54c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 call_timer_fn+0x192/0x640
 __run_timer_base+0x67e/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x225/0x870
 do_softirq+0x76/0xd0
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xf8/0x130
 batadv_tt_local_purge+0x2c1/0x340
 batadv_tt_purge+0x35/0xa10
 process_scheduled_works+0xa2f/0x1470
 worker_thread+0xa44/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
 </TASK>
