void icmpv6_cleanup(void)
{
	inet6_unregister_icmp_sender(icmp6_send);
	unregister_pernet_subsys(&icmpv6_sk_ops);
	inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6);
}

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.