__u32 __skb_get_hash_flowi6(struct sk_buff *skb, struct flowi6 *fl6)
{
	struct flow_keys keys;

	memset(&keys, 0, sizeof(keys));

	memcpy(&keys.addrs.v6addrs.src, &fl6->saddr,
	       sizeof(keys.addrs.v6addrs.src));
	memcpy(&keys.addrs.v6addrs.dst, &fl6->daddr,
	       sizeof(keys.addrs.v6addrs.dst));
	keys.control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
	keys.ports.src = fl6->fl6_sport;
	keys.ports.dst = fl6->fl6_dport;
	keys.keyid.keyid = fl6->fl6_gre_key;
	keys.tags.flow_label = (__force u32)fl6->flowlabel;
	keys.basic.ip_proto = fl6->flowi6_proto;

	__skb_set_sw_hash(skb, flow_hash_from_keys(&keys),
			  flow_keys_have_l4(&keys));

	return skb->hash;
}

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.