--- zzzz-none-000/linux-2.6.39.4/net/ipv4/fib_semantics.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/net/ipv4/fib_semantics.c	2021-11-10 13:38:18.000000000 +0000
@@ -572,8 +572,11 @@
 				fl4.flowi4_scope = RT_SCOPE_LINK;
 			err = fib_lookup(net, &fl4, &res);
 			if (err) {
-				rcu_read_unlock();
-				return err;
+				struct fib_table *table = fib_get_table(net, cfg->fc_table);
+				if (fib_table_lookup(table, &fl4, &res, FIB_LOOKUP_NOREF)) {
+					rcu_read_unlock();
+					return -ENETUNREACH;
+				}
 			}
 		}
 		err = -EINVAL;