1 files changed, 5 insertions, 2 deletions

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index ecd2c3f245ce..19ab78aca547 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1296,8 +1296,11 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 
         segs = ERR_PTR(-EPROTONOSUPPORT);
 
-        /* Note : following gso_segment() might change skb->encapsulation */
-        udpfrag = !skb->encapsulation && proto == IPPROTO_UDP;
+        if (skb->encapsulation &&
+            skb_shinfo(skb)->gso_type & (SKB_GSO_SIT|SKB_GSO_IPIP))
+                udpfrag = proto == IPPROTO_UDP && encap;
+        else
+                udpfrag = proto == IPPROTO_UDP && !skb->encapsulation;
 
         ops = rcu_dereference(inet_offloads[proto]);
         if (likely(ops && ops->callbacks.gso_segment))