diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 27adcc5467..59f76bcf76 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -1588,6 +1588,13 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp) virtio_init(vdev, "virtio-net", VIRTIO_ID_NET, n->config_size); n->max_queues = MAX(n->nic_conf.peers.queues, 1); + if (n->max_queues * 2 + 1 > VIRTIO_PCI_QUEUE_MAX) { + error_setg(errp, "Invalid number of queues (= %" PRIu32 "), " + "must be a postive integer less than %d.", + n->max_queues, (VIRTIO_PCI_QUEUE_MAX - 1) / 2); + virtio_cleanup(vdev); + return; + } n->vqs = g_malloc0(sizeof(VirtIONetQueue) * n->max_queues); n->vqs[0].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx); n->curr_queues = 1;