int qeth_get_elements_for_frags(struct sk_buff *skb)
{
	int cnt, length, e, elements = 0;
	struct skb_frag_struct *frag;
	char *data;

	for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
		frag = &skb_shinfo(skb)->frags[cnt];
		data = (char *)page_to_phys(skb_frag_page(frag)) +
			frag->page_offset;
		length = frag->size;
		e = PFN_UP((unsigned long)data + length - 1) -
			PFN_DOWN((unsigned long)data);
		elements += e;
	}
	return elements;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.