1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index ff111a89e17f..3381c4f91a8c 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -322,6 +322,15 @@ static rx_handler_result_t macvtap_handle_frame(struct sk_buff **pskb)
                         segs = nskb;
                 }
         } else {
+                /* If we receive a partial checksum and the tap side
+                 * doesn't support checksum offload, compute the checksum.
+                 * Note: it doesn't matter which checksum feature to
+                 *        check, we either support them all or none.
+                 */
+                if (skb->ip_summed == CHECKSUM_PARTIAL &&
+                    !(features & NETIF_F_ALL_CSUM) &&
+                    skb_checksum_help(skb))
+                        goto drop;
                 skb_queue_tail(&q->sk.sk_receive_queue, skb);
         }