static int tg3_mem_tx_acquire(struct tg3 *tp)
{
	int i;
	struct tg3_napi *tnapi = &tp->napi[0];

	/* If multivector TSS is enabled, vector 0 does not handle
	 * tx interrupts.  Don't allocate any resources for it.
	 */
	if (tg3_flag(tp, ENABLE_TSS))
		tnapi++;

	for (i = 0; i < tp->txq_cnt; i++, tnapi++) {
		tnapi->tx_buffers = kzalloc(sizeof(struct tg3_tx_ring_info) *
					    TG3_TX_RING_SIZE, GFP_KERNEL);
		if (!tnapi->tx_buffers)
			goto err_out;

		tnapi->tx_ring = dma_alloc_coherent(&tp->pdev->dev,
						    TG3_TX_RING_BYTES,
						    &tnapi->tx_desc_mapping,
						    GFP_KERNEL);
		if (!tnapi->tx_ring)
			goto err_out;
	}

	return 0;

err_out:
	tg3_mem_tx_release(tp);
	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.