[IPV6]: ROUTE: Copy u.dst.error for RTF_REJECT routes when cloning.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 5b58a516bb16..6d506230622a 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1249,6 +1249,8 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
                 nrt->rt6i_nexthop = neigh_clone(rt->rt6i_nexthop);
                 dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
                 nrt->rt6i_flags |= RTF_DYNAMIC|RTF_CACHE|RTF_EXPIRES;
+                if (nrt->rt6i_flags & RTF_REJECT)
+                        nrt->u.dst.error = rt->u.dst.error;
                 nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
                 if (allfrag)
                         nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;