static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
{
	switch (card->info.type) {
	case QETH_CARD_TYPE_UNKNOWN:
		return 1500;
	case QETH_CARD_TYPE_IQD:
		return card->info.max_mtu;
	case QETH_CARD_TYPE_OSD:
		switch (card->info.link_type) {
		case QETH_LINK_TYPE_HSTR:
		case QETH_LINK_TYPE_LANE_TR:
			return 2000;
		default:
			return card->options.layer2 ? 1500 : 1492;
		}
	case QETH_CARD_TYPE_OSM:
	case QETH_CARD_TYPE_OSX:
		return card->options.layer2 ? 1500 : 1492;
	default:
		return 1500;
	}
}

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.