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| author | David Lebrun <david.lebrun@uclouvain.be> | 2017-08-25 09:56:46 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-25 17:10:23 -0700 |
| commit | 6285217f0c29e68b744533a9ddf50e110d36d65e (patch) | |
| tree | 2b6f6c64ca2eef63fbb423247a1a8c4194727237 | |
| parent | 38ee7f2d47565689f35662d488d25e7afc43477d (diff) | |
| download | linux-6285217f0c29e68b744533a9ddf50e110d36d65e.tar.bz2 | |
ipv6: sr: enforce IPv6 packets for seg6local lwt
This patch ensures that the seg6local lightweight tunnel is used solely
with IPv6 routes and processes only IPv6 packets.
Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv6/seg6_local.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c index 609b94e970de..c6263256fcf6 100644 --- a/net/ipv6/seg6_local.c +++ b/net/ipv6/seg6_local.c @@ -357,6 +357,11 @@ static int seg6_local_input(struct sk_buff *skb) struct seg6_action_desc *desc; struct seg6_local_lwt *slwt; + if (skb->protocol != htons(ETH_P_IPV6)) { + kfree_skb(skb); + return -EINVAL; + } + slwt = seg6_local_lwtunnel(orig_dst->lwtstate); desc = slwt->desc; @@ -623,6 +628,9 @@ static int seg6_local_build_state(struct nlattr *nla, unsigned int family, struct seg6_local_lwt *slwt; int err; + if (family != AF_INET6) + return -EINVAL; + err = nla_parse_nested(tb, SEG6_LOCAL_MAX, nla, seg6_local_policy, extack); |