ip_gre: fix wrong return value of erspan_rcv

If pskb_may_pull return failed, return PACKET_REJECT instead of -ENOMEM. Fixes: 84e54fe ("gre: introduce native tunnel support for ERSPAN") Cc: William Tu <[email protected]> Signed-off-by: Haishuang Yan <[email protected]> Acked-by: William Tu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
mrcsosa · Dec 15, 2017 · c05fad5 · c05fad5
1 parent c647c0d
commit c05fad5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
@@ -266,7 +266,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 	len = gre_hdr_len + sizeof(*ershdr);
 
 	if (unlikely(!pskb_may_pull(skb, len)))
-		return -ENOMEM;
+		return PACKET_REJECT;
 
 	iph = ip_hdr(skb);
 	ershdr = (struct erspanhdr *)(skb->data + gre_hdr_len);