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Diffstat (limited to 'net/ipv4/ip_gre.c')
-rw-r--r--net/ipv4/ip_gre.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 6ec670fbbbdd..9b50eddd1882 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -261,6 +261,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
struct ip_tunnel_net *itn;
struct ip_tunnel *tunnel;
const struct iphdr *iph;
+ struct erspan_md2 *md2;
int ver;
int len;
@@ -313,8 +314,10 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
return PACKET_REJECT;
md = ip_tunnel_info_opts(&tun_dst->u.tun_info);
- memcpy(md, pkt_md, sizeof(*md));
md->version = ver;
+ md2 = &md->u.md2;
+ memcpy(md2, pkt_md, ver == 1 ? ERSPAN_V1_MDSIZE :
+ ERSPAN_V2_MDSIZE);
info = &tun_dst->u.tun_info;
info->key.tun_flags |= TUNNEL_ERSPAN_OPT;