From: Florian Westphal <fw@xxxxxxxxx> yoshfuji points out that sk_bound_dev_if should only be provided for link-local addresses. IPv6 getpeer/sockname also has this test, i.e. we will now only set sin6_scope_id if the original(!) destination was a link-local address. Reported-by: YOSHIFUJI Hideaki <yoshfuji@xxxxxxxxxxxxxx> Signed-off-by: Florian Westphal <fw@xxxxxxxxx> Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> --- net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c index 02dcafd..e5f6cf7 100644 --- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c +++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c @@ -334,9 +334,14 @@ ipv6_getorigdst(struct sock *sk, int optval, void __user *user, int *len) memcpy(&sin6.sin6_addr, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.in6, sizeof(sin6.sin6_addr)); - sin6.sin6_scope_id = sk->sk_bound_dev_if; nf_ct_put(ct); + + if (ipv6_addr_type(&sin6.sin6_addr) & IPV6_ADDR_LINKLOCAL) + sin6.sin6_scope_id = sk->sk_bound_dev_if; + else + sin6.sin6_scope_id = 0; + return copy_to_user(user, &sin6, sizeof(sin6)) ? -EFAULT : 0; } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
