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--- linux-3.3.noarch/net/ipv4/route.c~ 2012-04-02 20:24:44.162789023 -0400
+++ linux-3.3.noarch/net/ipv4/route.c 2012-04-02 20:25:20.610784137 -0400
@@ -2794,6 +2794,14 @@ static struct rtable *ip_route_output_sl
fl4->saddr = FIB_RES_PREFSRC(net, res);
dev_out = FIB_RES_DEV(res);
+
+ if (!dev_out) {
+ pr_crit("ipv4: FIB_RES_DEV() is NULL, nh_sel=%d\n",
+ res.nh_sel);
+ rth = ERR_PTR(-EINVAL);
+ goto out;
+ }
+
fl4->flowi4_oif = dev_out->ifindex;
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