diff options
Diffstat (limited to 'net/ipv6/xfrm6_mode_tunnel.c')
| -rw-r--r-- | net/ipv6/xfrm6_mode_tunnel.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index 0bc866c0d83..d2c560c181a 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -86,6 +86,7 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb) { int err = -EINVAL; + const unsigned char *old_mac; if (skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPV6 && skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPIP) @@ -107,8 +108,9 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb) ip6ip_ecn_decapsulate(skb); skb->protocol = htons(ETH_P_IP); } - skb->mac.raw = memmove(skb->data - skb->mac_len, - skb->mac.raw, skb->mac_len); + old_mac = skb->mac.raw; + skb_set_mac_header(skb, -skb->mac_len); + memmove(skb->mac.raw, old_mac, skb->mac_len); skb->nh.raw = skb->data; err = 0; |