int virtio_get_num_queues(VirtIODevice *vdev)
{
    int i;

    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
        if (!virtio_queue_get_num(vdev, i)) {
            break;
        }
    }

    return i;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.