static int udp_lib_lport_inuse(struct net *net, __u16 num,
			       const struct udp_hslot *hslot,
			       unsigned long *bitmap,
			       struct sock *sk,
			       int (*saddr_comp)(const struct sock *sk1,
						 const struct sock *sk2),
			       unsigned int log)
{
	struct sock *sk2;
	struct hlist_nulls_node *node;
	kuid_t uid = sock_i_uid(sk);

	sk_nulls_for_each(sk2, node, &hslot->head)
		if (net_eq(sock_net(sk2), net) &&
		    sk2 != sk &&
		    (bitmap || udp_sk(sk2)->udp_port_hash == num) &&
		    (!sk2->sk_reuse || !sk->sk_reuse) &&
		    (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if ||
		     sk2->sk_bound_dev_if == sk->sk_bound_dev_if) &&
		    (!sk2->sk_reuseport || !sk->sk_reuseport ||
		      !uid_eq(uid, sock_i_uid(sk2))) &&
		    (*saddr_comp)(sk, sk2)) {
			if (bitmap)
				__set_bit(udp_sk(sk2)->udp_port_hash >> log,
					  bitmap);
			else
				return 1;
		}
	return 0;
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.