BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 20568 Comm: syz-executor328 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 register_lock_class+0x2aa/0x2e0 kernel/locking/lockdep.c:1376 __lock_acquire+0x10c/0x2de0 kernel/locking/lockdep.c:5162 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942 touch_wq_lockdep_map+0xcb/0x180 kernel/workqueue.c:4272 __flush_workqueue+0x148/0x10b0 kernel/workqueue.c:4314 drain_workqueue+0xce/0x380 kernel/workqueue.c:4478 destroy_workqueue+0xbe/0x7b0 kernel/workqueue.c:6372 nci_unregister_device+0xac/0x250 net/nfc/nci/core.c:1333 virtual_ncidev_close+0x59/0x90 drivers/nfc/virtual_ncidev.c:168 __fput+0x41a/0xa70 fs/file_table.c:512 fput_close_sync+0x11f/0x240 fs/file_table.c:618 filp_close_sync+0x6e/0xa0 fs/open.c:1573 close_files fs/file.c:572 [inline] put_files_struct+0x233/0x3c0 fs/file.c:584 do_exit+0x6f0/0x2360 kernel/exit.c:977 do_group_exit+0x22d/0x2f0 kernel/exit.c:1123 __do_sys_exit_group kernel/exit.c:1134 [inline] __se_sys_exit_group kernel/exit.c:1132 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1132 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f53758ddbc5 Code: Unable to access opcode bytes at 0x7f53758ddb9b. RSP: 002b:00007ffc2c3dd2f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f53758ddbc5 RDX: 00000000000000e7 RSI: ffffffffffffffd8 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 00007f5375977100 R14: 00007f53759793a8 R15: 00007f53759793c0