diff options
Diffstat (limited to 'net/ipv6/sit.c')
| -rw-r--r-- | net/ipv6/sit.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 96582ec9c807..77736190dc15 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -693,6 +693,10 @@ static int ipip6_rcv(struct sk_buff *skb) if (iptunnel_pull_header(skb, 0, htons(ETH_P_IPV6))) goto out; + /* skb can be uncloned in iptunnel_pull_header, so + * old iph is no longer valid + */ + iph = (const struct iphdr *)skb_mac_header(skb); err = IP_ECN_decapsulate(iph, skb); if (unlikely(err)) { if (log_ecn_error) |