syzbot

BUG: workqueue leaked atomic, lock or RCU: kworker/u8:19[16055]
     preempt=0x00000101 lock=2->0 RCU=0->0 workfn=usb_giveback_urb_bh
INFO: lockdep is turned off.
CPU: 1 UID: 0 PID: 16055 Comm: kworker/u8:19 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: bat_events batadv_nc_worker
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 process_one_work+0x11f5/0x1b70 kernel/workqueue.c:3259
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 bh_worker+0x5a4/0x8a0 kernel/workqueue.c:3581
 workqueue_softirq_action+0x143/0x1a0 kernel/workqueue.c:3608
 tasklet_action+0x14/0x70 kernel/softirq.c:854
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 do_softirq kernel/softirq.c:480 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:467
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:407
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 batadv_nc_purge_paths+0x1d4/0x3a0 net/batman-adv/network-coding.c:471
 batadv_nc_worker+0x921/0x1030 net/batman-adv/network-coding.c:720
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>