static int qeth_handle_send_error(struct qeth_card *card,
		struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
{
	int sbalf15 = buffer->buffer->element[15].sflags;

	QETH_CARD_TEXT(card, 6, "hdsnderr");
	if (card->info.type == QETH_CARD_TYPE_IQD) {
		if (sbalf15 == 0) {
			qdio_err = 0;
		} else {
			qdio_err = 1;
		}
	}
	qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");

	if (!qdio_err)
		return QETH_SEND_ERROR_NONE;

	if ((sbalf15 >= 15) && (sbalf15 <= 31))
		return QETH_SEND_ERROR_RETRY;

	QETH_CARD_TEXT(card, 1, "lnkfail");
	QETH_CARD_TEXT_(card, 1, "%04x %02x",
		       (u16)qdio_err, (u8)sbalf15);
	return QETH_SEND_ERROR_LINK_FAILURE;
}

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.