static inline void __qeth_fill_buffer(struct sk_buff *skb,
	struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
	int offset)
{
	int length = skb->len - skb->data_len;
	int length_here;
	int element;
	char *data;
	int first_lap, cnt;
	struct skb_frag_struct *frag;

	element = *next_element_to_fill;
	data = skb->data;
	first_lap = (is_tso == 0 ? 1 : 0);

	if (offset >= 0) {
		data = skb->data + offset;
		length -= offset;
		first_lap = 0;
	}

	while (length > 0) {
		/* length_here is the remaining amount of data in this page */
		length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
		if (length < length_here)
			length_here = length;

		buffer->element[element].addr = data;
		buffer->element[element].length = length_here;
		length -= length_here;
		if (!length) {
			if (first_lap)
				if (skb_shinfo(skb)->nr_frags)
					buffer->element[element].eflags =
						SBAL_EFLAGS_FIRST_FRAG;
				else
					buffer->element[element].eflags = 0;
			else
				buffer->element[element].eflags =
				    SBAL_EFLAGS_MIDDLE_FRAG;
		} else {
			if (first_lap)
				buffer->element[element].eflags =
				    SBAL_EFLAGS_FIRST_FRAG;
			else
				buffer->element[element].eflags =
				    SBAL_EFLAGS_MIDDLE_FRAG;
		}
		data += length_here;
		element++;
		first_lap = 0;
	}

	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;
		while (length > 0) {
			length_here = PAGE_SIZE -
				((unsigned long) data % PAGE_SIZE);
			if (length < length_here)
				length_here = length;

			buffer->element[element].addr = data;
			buffer->element[element].length = length_here;
			buffer->element[element].eflags =
				SBAL_EFLAGS_MIDDLE_FRAG;
			length -= length_here;
			data += length_here;
			element++;
		}
	}

	if (buffer->element[element - 1].eflags)
		buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
	*next_element_to_fill = element;
}

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.