Commit c05fad57 authored by Haishuang Yan's avatar Haishuang Yan Committed by David S. Miller

ip_gre: fix wrong return value of erspan_rcv

If pskb_may_pull return failed, return PACKET_REJECT instead of -ENOMEM.

Fixes: 84e54fe0 ("gre: introduce native tunnel support for ERSPAN")
Cc: William Tu <u9012063@gmail.com>
Signed-off-by: default avatarHaishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: default avatarWilliam Tu <u9012063@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c647c0d6
...@@ -266,7 +266,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi, ...@@ -266,7 +266,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
len = gre_hdr_len + sizeof(*ershdr); len = gre_hdr_len + sizeof(*ershdr);
if (unlikely(!pskb_may_pull(skb, len))) if (unlikely(!pskb_may_pull(skb, len)))
return -ENOMEM; return PACKET_REJECT;
iph = ip_hdr(skb); iph = ip_hdr(skb);
ershdr = (struct erspanhdr *)(skb->data + gre_hdr_len); ershdr = (struct erspanhdr *)(skb->data + gre_hdr_len);
......
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