Missed this one in my last series.
Signed-off-by: Anthony Liguori <[EMAIL PROTECTED]>
diff --git a/qemu/hw/virtio-net.c b/qemu/hw/virtio-net.c
index 93bca1d..ca45775 100644
--- a/qemu/hw/virtio-net.c
+++ b/qemu/hw/virtio-net.c
@@ -246,6 +246,12 @@ static void virtio_net_flush_tx(VirtIONet *n, VirtQueue
*vq)
while (virtqueue_pop(vq, &elem)) {
ssize_t len = 0;
+ if (elem.out_num < 1 ||
+ elem.out_sg[0].iov_len != sizeof(struct virtio_net_hdr)) {
+ fprintf(stderr, "virtio-net header not in first element\n");
+ exit(1);
+ }
+
/* ignore the header for now */
len = qemu_sendv_packet(n->vc, &elem.out_sg[1], elem.out_num - 1);
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