Merge branch 'next/dt' of git://git.linaro.org/people/arnd/arm-soc

[platform/kernel/linux-rpi.git] / net / ipv6 / ndisc.c

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 7968bfe..44e5b7f 100644 (file)
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1221,6 +1221,9 @@ static void ndisc_router_discovery(struct sk_buff *skb)
        if (!in6_dev->cnf.accept_ra_defrtr)
                goto skip_defrtr;
 
+       if (ipv6_chk_addr(dev_net(in6_dev->dev), &ipv6_hdr(skb)->saddr, NULL, 0))
+               goto skip_defrtr;
+
        lifetime = ntohs(ra_msg->icmph.icmp6_rt_lifetime);
 
 #ifdef CONFIG_IPV6_ROUTER_PREF
@@ -1343,6 +1346,9 @@ skip_linkparms:
                goto out;
 
 #ifdef CONFIG_IPV6_ROUTE_INFO
+       if (ipv6_chk_addr(dev_net(in6_dev->dev), &ipv6_hdr(skb)->saddr, NULL, 0))
+               goto skip_routeinfo;
+
        if (in6_dev->cnf.accept_ra_rtr_pref && ndopts.nd_opts_ri) {
                struct nd_opt_hdr *p;
                for (p = ndopts.nd_opts_ri;
@@ -1360,6 +1366,8 @@ skip_linkparms:
                                      &ipv6_hdr(skb)->saddr);
                }
        }
+
+skip_routeinfo:
 #endif
 
 #ifdef CONFIG_IPV6_NDISC_NODETYPE