static int qeth_alloc_qdio_buffers(struct qeth_card *card)
{
	int i, j;

	QETH_DBF_TEXT(SETUP, 2, "allcqdbf");

	if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
		QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
		return 0;

	card->qdio.in_q = kzalloc(sizeof(struct qeth_qdio_q),
				   GFP_KERNEL);
	if (!card->qdio.in_q)
		goto out_nomem;
	QETH_DBF_TEXT(SETUP, 2, "inq");
	QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
	memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
	/* give inbound qeth_qdio_buffers their qdio_buffers */
	for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
		card->qdio.in_q->bufs[i].buffer =
			&card->qdio.in_q->qdio_bufs[i];
		card->qdio.in_q->bufs[i].rx_skb = NULL;
	}
	/* inbound buffer pool */
	if (qeth_alloc_buffer_pool(card))
		goto out_freeinq;

	/* outbound */
	card->qdio.out_qs =
		kzalloc(card->qdio.no_out_queues *
			sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
	if (!card->qdio.out_qs)
		goto out_freepool;
	for (i = 0; i < card->qdio.no_out_queues; ++i) {
		card->qdio.out_qs[i] = kzalloc(sizeof(struct qeth_qdio_out_q),
					       GFP_KERNEL);
		if (!card->qdio.out_qs[i])
			goto out_freeoutq;
		QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
		QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
		card->qdio.out_qs[i]->queue_no = i;
		/* give outbound qeth_qdio_buffers their qdio_buffers */
		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
			WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
			if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
				goto out_freeoutqbufs;
		}
	}

	/* completion */
	if (qeth_alloc_cq(card))
		goto out_freeoutq;

	return 0;

out_freeoutqbufs:
	while (j > 0) {
		--j;
		kmem_cache_free(qeth_qdio_outbuf_cache,
				card->qdio.out_qs[i]->bufs[j]);
		card->qdio.out_qs[i]->bufs[j] = NULL;
	}
out_freeoutq:
	while (i > 0) {
		kfree(card->qdio.out_qs[--i]);
		qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
	}
	kfree(card->qdio.out_qs);
	card->qdio.out_qs = NULL;
out_freepool:
	qeth_free_buffer_pool(card);
out_freeinq:
	kfree(card->qdio.in_q);
	card->qdio.in_q = NULL;
out_nomem:
	atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
	return -ENOMEM;
}

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.