static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
{
	struct sock *sk;

	sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto);
	if (!sk)
		return NULL;

	sock_init_data(sock, sk);
	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);

	sk->sk_destruct = sco_sock_destruct;
	sk->sk_sndtimeo = SCO_CONN_TIMEOUT;

	sock_reset_flag(sk, SOCK_ZAPPED);

	sk->sk_protocol = proto;
	sk->sk_state    = BT_OPEN;

	sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT;

	setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk);

	bt_sock_link(&sco_sk_list, sk);
	return sk;
}

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.