Re: [Qemu-devel] [PATCH] net: virtio-net: initialise local 'netcfg' variable

[P J P]

  Hello Jason,

+-- On Mon, 5 Dec 2016, Jason Wang wrote --+
| > diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
| > index 01f1351..cb5b3dc 100644
| > --- a/hw/net/virtio-net.c
| > +++ b/hw/net/virtio-net.c
| > @@ -72,7 +72,7 @@ static int vq2q(int queue_index)
| >   static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
| >   {
| >       VirtIONet *n = VIRTIO_NET(vdev);
| > -    struct virtio_net_config netcfg;
| > +    struct virtio_net_config netcfg = {};
| >   
| >       virtio_stw_p(vdev, &netcfg.status, n->status);
| >       virtio_stw_p(vdev, &netcfg.max_virtqueue_pairs, n->max_queues);
| 
| Good catch but since mtu patch wasn't accepted so mtu were in fact not exposed
| to guest.

'mtu' appears to have been added by commit 'dbdfea9226c9d0bdd', could you 
pleae confirm?

| (FYI, you can have a look at Maxime patch, he did a stw_p here()).

  +    virtio_stw_p(vdev, &netcfg.mtu, n->mtu);
  +

  Yes, but this isn't accepted yet, is it?


Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
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