BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 1 PID: 19732 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-13878-g2c40c1c6adab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 register_lock_class+0xc74/0x1320 kernel/locking/lockdep.c:1321 __lock_acquire+0x13c/0x5de0 kernel/locking/lockdep.c:5013 lock_acquire kernel/locking/lockdep.c:5753 [inline] lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718 __flush_workqueue+0x14b/0x1320 kernel/workqueue.c:3143 drain_workqueue+0x18f/0x3d0 kernel/workqueue.c:3308 destroy_workqueue+0xc3/0xb10 kernel/workqueue.c:4803 nci_unregister_device+0xc0/0x300 net/nfc/nci/core.c:1301 virtual_ncidev_close+0x51/0xa0 drivers/nfc/virtual_ncidev.c:163 __fput+0x270/0xbb0 fs/file_table.c:394 __fput_sync+0x47/0x50 fs/file_table.c:475 __do_sys_close fs/open.c:1590 [inline] __se_sys_close fs/open.c:1575 [inline] __x64_sys_close+0x87/0xf0 fs/open.c:1575 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f710ae7b89a Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24 RSP: 002b:00007ffeb69e76e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f710ae7b89a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f710af9d980 R08: 0000001b2e460000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000059517 R13: ffffffffffffffff R14: 00007f710aa00000 R15: 00000000000591d6