static void tg3_int_reenable(struct tg3_napi *tnapi)
{
	struct tg3 *tp = tnapi->tp;

	tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
	mmiowb();

	/* When doing tagged status, this work check is unnecessary.
	 * The last_tag we write above tells the chip which piece of
	 * work we've completed.
	 */
	if (!tg3_flag(tp, TAGGED_STATUS) && tg3_has_work(tnapi))
		tw32(HOSTCC_MODE, tp->coalesce_mode |
		     HOSTCC_MODE_ENABLE | tnapi->coal_now);
}

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.