BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 17209 Comm: syz-executor654 Not tainted 6.16.0-rc2-syzkaller-00378-gb67ec639010f #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 register_lock_class+0x2e8/0x320 kernel/locking/lockdep.c:1335 __lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5115 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871 touch_wq_lockdep_map+0xcb/0x180 kernel/workqueue.c:3909 __flush_workqueue+0x121/0x14b0 kernel/workqueue.c:3951 drain_workqueue+0xd3/0x390 kernel/workqueue.c:4115 destroy_workqueue+0xbb/0xc70 kernel/workqueue.c:5871 nci_unregister_device+0xb1/0x240 net/nfc/nci/core.c:1316 virtual_ncidev_close+0x56/0x90 drivers/nfc/virtual_ncidev.c:172 __fput+0x44c/0xa70 fs/file_table.c:465 task_work_run+0x1d1/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x22e0 kernel/exit.c:964 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 __do_sys_exit_group kernel/exit.c:1116 [inline] __se_sys_exit_group kernel/exit.c:1114 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1114 x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbe089a0c39 Code: Unable to access opcode bytes at 0x7fbe089a0c0f. RSP: 002b:00007ffdda64ba18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbe089a0c39 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007fbe08a1b290 R08: ffffffffffffffb8 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbe08a1b290 R13: 0000000000000000 R14: 00007fbe08a1bd00 R15: 00007fbe08971dd0