static int tg3_rx_prodring_init(struct tg3 *tp,
				struct tg3_rx_prodring_set *tpr)
{
	tpr->rx_std_buffers = kzalloc(TG3_RX_STD_BUFF_RING_SIZE(tp),
				      GFP_KERNEL);
	if (!tpr->rx_std_buffers)
		return -ENOMEM;

	tpr->rx_std = dma_alloc_coherent(&tp->pdev->dev,
					 TG3_RX_STD_RING_BYTES(tp),
					 &tpr->rx_std_mapping,
					 GFP_KERNEL);
	if (!tpr->rx_std)
		goto err_out;

	if (tg3_flag(tp, JUMBO_CAPABLE) && !tg3_flag(tp, 5780_CLASS)) {
		tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE(tp),
					      GFP_KERNEL);
		if (!tpr->rx_jmb_buffers)
			goto err_out;

		tpr->rx_jmb = dma_alloc_coherent(&tp->pdev->dev,
						 TG3_RX_JMB_RING_BYTES(tp),
						 &tpr->rx_jmb_mapping,
						 GFP_KERNEL);
		if (!tpr->rx_jmb)
			goto err_out;
	}

	return 0;

err_out:
	tg3_rx_prodring_fini(tp, tpr);
	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.