static u64 __skb_get_nlattr(u64 ctx, u64 A, u64 X, u64 r4, u64 r5)
{
	struct sk_buff *skb = (struct sk_buff *)(long) ctx;
	struct nlattr *nla;

 	if (skb_is_nonlinear(skb))
 		return 0;
 
	if (skb->len < sizeof(struct nlattr))
		return 0;

 	if (A > skb->len - sizeof(struct nlattr))
 		return 0;
 
	nla = nla_find((struct nlattr *) &skb->data[A], skb->len - A, X);
	if (nla)
		return (void *) nla - (void *) skb->data;

	return 0;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.