static void virtio_net_set_status(struct VirtIODevice *vdev, uint8_t status)
{
    VirtIONet *n = VIRTIO_NET(vdev);
    VirtIONetQueue *q;
    int i;
    uint8_t queue_status;

    virtio_net_vhost_status(n, status);

    for (i = 0; i < n->max_queues; i++) {
        q = &n->vqs[i];

        if ((!n->multiqueue && i != 0) || i >= n->curr_queues) {
            queue_status = 0;
        } else {
            queue_status = status;
        }

        if (!q->tx_waiting) {
            continue;
        }

        if (virtio_net_started(n, queue_status) && !n->vhost_started) {
            if (q->tx_timer) {
                timer_mod(q->tx_timer,
                               qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + n->tx_timeout);
            } else {
                qemu_bh_schedule(q->tx_bh);
            }
        } else {
            if (q->tx_timer) {
                timer_del(q->tx_timer);
            } else {
                qemu_bh_cancel(q->tx_bh);
            }
        }
    }
}

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.