diff options
| -rw-r--r-- | net/ipv6/ip6_input.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index f185cbcda114..d35dff23f609 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -236,6 +236,7 @@ resubmit: nhoff = IP6CB(skb)->nhoff; nexthdr = skb_network_header(skb)[nhoff]; +resubmit_final: raw = raw6_local_deliver(skb, nexthdr); ipprot = rcu_dereference(inet6_protos[nexthdr]); if (ipprot) { @@ -263,10 +264,21 @@ resubmit: goto discard; ret = ipprot->handler(skb); - if (ret > 0) - goto resubmit; - else if (ret == 0) + if (ret > 0) { + if (ipprot->flags & INET6_PROTO_FINAL) { + /* Not an extension header, most likely UDP + * encapsulation. Use return value as nexthdr + * protocol not nhoff (which presumably is + * not set by handler). + */ + nexthdr = ret; + goto resubmit_final; + } else { + goto resubmit; + } + } else if (ret == 0) { __IP6_INC_STATS(net, idev, IPSTATS_MIB_INDELIVERS); + } } else { if (!raw) { if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) { |