BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 29975 Comm: syz.3.5836 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 register_lock_class+0x5e6/0x7b0 kernel/locking/lockdep.c:1376
 __lock_acquire+0x25d/0x1f40 kernel/locking/lockdep.c:5162
 lock_acquire kernel/locking/lockdep.c:5942 [inline]
 lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899
 touch_wq_lockdep_map+0xad/0x1c0 kernel/workqueue.c:4272
 __flush_workqueue+0x131/0x1200 kernel/workqueue.c:4314
 drain_workqueue+0x175/0x3c0 kernel/workqueue.c:4478
 destroy_workqueue+0xc1/0x9f0 kernel/workqueue.c:6372
 nci_unregister_device+0xe3/0x330 net/nfc/nci/core.c:1334
 virtual_ncidev_close+0x4b/0xa0 drivers/nfc/virtual_ncidev.c:168
 __fput+0x3fb/0xb50 fs/file_table.c:512
 fput_close_sync+0x118/0x250 fs/file_table.c:618
 filp_close_sync+0x75/0xa0 fs/open.c:1573
 __range_close+0x4a6/0x8b0 fs/file.c:919
 __do_sys_close_range fs/file.c:1003 [inline]
 __se_sys_close_range fs/file.c:954 [inline]
 __x64_sys_close_range+0x1f8/0x430 fs/file.c:954
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe4e3d9f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe1c0f64d8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 00007ffe1c0f65c0 RCX: 00007fe4e3d9f559
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000043fd1 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2fa20000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe4e4025fac R14: 00007fe4e4025fa8 R15: 00007fe4e4025fa0
 </TASK>