diff options
| -rw-r--r-- | hw/net/virtio-net.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 9b88775fac..e574bd4322 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -798,7 +798,7 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) virtio_net_ctrl_ack status = VIRTIO_NET_ERR; VirtQueueElement elem; size_t s; - struct iovec *iov; + struct iovec *iov, *iov2; unsigned int iov_cnt; while (virtqueue_pop(vq, &elem)) { @@ -808,8 +808,8 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) exit(1); } - iov = elem.out_sg; iov_cnt = elem.out_num; + iov2 = iov = g_memdup(elem.out_sg, sizeof(struct iovec) * elem.out_num); s = iov_to_buf(iov, iov_cnt, 0, &ctrl, sizeof(ctrl)); iov_discard_front(&iov, &iov_cnt, sizeof(ctrl)); if (s != sizeof(ctrl)) { @@ -833,6 +833,7 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) virtqueue_push(vq, &elem, sizeof(status)); virtio_notify(vdev, vq); + g_free(iov2); } } |