static void ip6_append_data_mtu(int *mtu,
static void ip6_append_data_mtu(unsigned int *mtu,
 				int *maxfraglen,
 				unsigned int fragheaderlen,
 				struct sk_buff *skb,
				struct rt6_info *rt,
				bool pmtuprobe)
 {
 	if (!(rt->dst.flags & DST_XFRM_TUNNEL)) {
 		if (skb == NULL) {
			/* first fragment, reserve header_len */
			*mtu = *mtu - rt->dst.header_len;

		} else {
			/*
 			 * this fragment is not first, the headers
 			 * space is regarded as data space.
 			 */
			*mtu = min(*mtu, pmtuprobe ?
				   rt->dst.dev->mtu :
				   dst_mtu(rt->dst.path));
 		}
 		*maxfraglen = ((*mtu - fragheaderlen) & ~7)
 			      + fragheaderlen - sizeof(struct frag_hdr);
	}
}

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.