When a packet with invalid length arrives, ensure that the packet
is freed correctly if mergeable packet buffers and big packets
(GUEST_TSO4) are both enabled.
---
drivers/net/virtio_net.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 916241d..6a4665c 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -426,10 +426,10 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
pr_debug("%s: short packet %i\n", dev->name, len);
dev->stats.rx_length_errors++;
- if (vi->big_packets)
- give_pages(rq, buf);
- else if (vi->mergeable_rx_bufs)
+ if (vi->mergeable_rx_bufs)
put_page(virt_to_head_page(buf));
+ else if (vi->big_packets)
+ give_pages(rq, buf);
else
dev_kfree_skb(buf);
return;
--
1.8.5.1
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