static void tg3_ints_init(struct tg3 *tp)
{
	if ((tg3_flag(tp, SUPPORT_MSI) || tg3_flag(tp, SUPPORT_MSIX)) &&
	    !tg3_flag(tp, TAGGED_STATUS)) {
		/* All MSI supporting chips should support tagged
		 * status.  Assert that this is the case.
		 */
		netdev_warn(tp->dev,
			    "MSI without TAGGED_STATUS? Not using MSI\n");
		goto defcfg;
	}

	if (tg3_flag(tp, SUPPORT_MSIX) && tg3_enable_msix(tp))
		tg3_flag_set(tp, USING_MSIX);
	else if (tg3_flag(tp, SUPPORT_MSI) && pci_enable_msi(tp->pdev) == 0)
		tg3_flag_set(tp, USING_MSI);

	if (tg3_flag(tp, USING_MSI) || tg3_flag(tp, USING_MSIX)) {
		u32 msi_mode = tr32(MSGINT_MODE);
		if (tg3_flag(tp, USING_MSIX) && tp->irq_cnt > 1)
			msi_mode |= MSGINT_MODE_MULTIVEC_EN;
		if (!tg3_flag(tp, 1SHOT_MSI))
			msi_mode |= MSGINT_MODE_ONE_SHOT_DISABLE;
		tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
	}
defcfg:
	if (!tg3_flag(tp, USING_MSIX)) {
		tp->irq_cnt = 1;
		tp->napi[0].irq_vec = tp->pdev->irq;
	}

	if (tp->irq_cnt == 1) {
		tp->txq_cnt = 1;
		tp->rxq_cnt = 1;
		netif_set_real_num_tx_queues(tp->dev, 1);
		netif_set_real_num_rx_queues(tp->dev, 1);
	}
}

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.