netlink: 'syz.6.10280': attribute type 64 has an invalid length. BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 7354 Comm: syz.6.10280 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 register_lock_class+0x2e8/0x320 kernel/locking/lockdep.c:1332 __lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5112 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] dev_reset_queue+0x138/0x1b0 net/sched/sch_generic.c:1305 netdev_for_each_tx_queue include/linux/netdevice.h:2664 [inline] dev_deactivate_many+0x720/0xd40 net/sched/sch_generic.c:1371 __dev_close_many+0x162/0x6f0 net/core/dev.c:1739 netif_close_many+0x225/0x410 net/core/dev.c:1780 unregister_netdevice_many_notify+0xb29/0x2390 net/core/dev.c:12301 unregister_netdevice_many net/core/dev.c:12394 [inline] unregister_netdevice_queue+0x33c/0x380 net/core/dev.c:12208 unregister_netdevice include/linux/netdevice.h:3389 [inline] __tun_detach+0x6d9/0x15d0 drivers/net/tun.c:621 tun_detach drivers/net/tun.c:637 [inline] tun_chr_close+0x10a/0x1c0 drivers/net/tun.c:3436 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x2300 kernel/exit.c:966 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4bc258efc9 Code: Unable to access opcode bytes at 0x7f4bc258ef9f. RSP: 002b:00007f4bc34610e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f4bc27e5fa8 RCX: 00007f4bc258efc9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4bc27e5fa8 RBP: 00007f4bc27e5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4bc27e6038 R14: 00007ffcaabfbab0 R15: 00007ffcaabfbb98