static void netlink_deliver_tap(struct sk_buff *skb)
{
	rcu_read_lock();

	if (unlikely(!list_empty(&netlink_tap_all)))
		__netlink_deliver_tap(skb);

	rcu_read_unlock();
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.