BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 11839 Comm: syz.4.9513 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 register_lock_class+0x2f0/0x31c kernel/locking/lockdep.c:1332 __lock_acquire+0xc0/0x2f44 kernel/locking/lockdep.c:5112 lock_acquire+0x140/0x368 kernel/locking/lockdep.c:5868 touch_wq_lockdep_map+0xb4/0x15c kernel/workqueue.c:4017 __flush_workqueue+0x110/0xd9c kernel/workqueue.c:4059 drain_workqueue+0xa4/0x310 kernel/workqueue.c:4223 destroy_workqueue+0xb0/0x6c4 kernel/workqueue.c:6028 nci_unregister_device+0xcc/0x238 net/nfc/nci/core.c:1334 virtual_ncidev_close+0x5c/0xa0 drivers/nfc/virtual_ncidev.c:168 __fput+0x340/0x744 fs/file_table.c:510 ____fput+0x20/0x30 fs/file_table.c:538 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] exit_to_user_mode_prepare_legacy include/linux/irq-entry-common.h:224 [inline] arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:86 [inline] el0_svc+0x180/0x25c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594