BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 23473 Comm: syz.4.4170 Not tainted syzkaller #0 PREEMPT(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+0xd1/0x250 net/nfc/nci/core.c:1334 virtual_ncidev_close+0x56/0x90 drivers/nfc/virtual_ncidev.c:168 __fput+0x408/0xa40 fs/file_table.c:512 fput_close_sync+0x11f/0x240 fs/file_table.c:618 filp_close_sync+0x6e/0xa0 fs/open.c:1573 __range_close fs/file.c:919 [inline] __do_sys_close_range fs/file.c:1003 [inline] __se_sys_close_range+0xa77/0xef0 fs/file.c:954 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: 0033:0x7f70e999fb19 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:00007fff70d51618 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: ffffffffffffffda RBX: 00007fff70d51700 RCX: 00007f70e999fb19 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 000000000005ef14 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b33f20000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f70e9c25fac R14: 00007f70e9c25fa8 R15: 00007f70e9c25fa0