1 files changed, 53 insertions, 0 deletions
diff --git a/main/linux-grsec/linux-3.0.x-regression-with-ipv4-routes-having-mtu.patch b/main/linux-grsec/linux-3.0.x-regression-with-ipv4-routes-having-mtu.patch
new file mode 100644
index 0000000000..7ca4147826
--- /dev/null
+++ b/main/linux-grsec/linux-3.0.x-regression-with-ipv4-routes-having-mtu.patch
@@ -0,0 +1,53 @@
+diff --git a/net/ipv4/route.c b/net/ipv4/route.c
+index f30112f..26a6249 100644
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -1841,6 +1841,22 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst)
+ 	return mtu;
+ }
+ 
++static void __rt_init_metrics(struct rtable *rt, struct fib_info *fi,
++			      struct inet_peer *peer)
++{
++	if (peer && fi->fib_metrics == (u32 *) dst_default_metrics) {
++		dst_init_metrics(&rt->dst, peer->metrics, false);
++		return;
++	}
++
++	if (fi->fib_metrics != (u32 *) dst_default_metrics) {
++		rt->fi = fi;
++		atomic_inc(&fi->fib_clntref);
++	}
++
++	dst_init_metrics(&rt->dst, fi->fib_metrics, true);
++}
++
+ static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4,
+ 			    struct fib_info *fi)
+ {
+@@ -1859,7 +1875,8 @@ static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4,
+ 		if (inet_metrics_new(peer))
+ 			memcpy(peer->metrics, fi->fib_metrics,
+ 			       sizeof(u32) * RTAX_MAX);
+-		dst_init_metrics(&rt->dst, peer->metrics, false);
++
++		__rt_init_metrics(rt, fi, peer);
+ 
+ 		check_peer_pmtu(&rt->dst, peer);
+ 		if (peer->redirect_genid != redirect_genid)
+@@ -1869,13 +1886,8 @@ static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4,
+ 			rt->rt_gateway = peer->redirect_learned.a4;
+ 			rt->rt_flags |= RTCF_REDIRECTED;
+ 		}
+-	} else {
+-		if (fi->fib_metrics != (u32 *) dst_default_metrics) {
+-			rt->fi = fi;
+-			atomic_inc(&fi->fib_clntref);
+-		}
+-		dst_init_metrics(&rt->dst, fi->fib_metrics, true);
+-	}
++	} else
++		__rt_init_metrics(rt, fi, NULL);
+ }
+ 
+ static void rt_set_nexthop(struct rtable *rt, const struct flowi4 *fl4,