BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5889 Comm: kworker/u8:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 register_lock_class+0x2aa/0x2e0
 __lock_acquire+0xaf/0x2e50
 lock_acquire+0x115/0x350
 _raw_spin_lock_bh+0x36/0x50
 dev_reset_queue+0x138/0x1b0
 dev_deactivate_many+0x778/0xda0
 __dev_close_many+0x180/0x6e0
 netif_close_many+0x249/0x660
 unregister_netdevice_many_notify+0xb76/0x2140
 ops_undo_list+0x391/0x8d0
 cleanup_net+0x572/0x810
 process_scheduled_works+0xc3d/0x1630
 worker_thread+0xa47/0xfb0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
