ipv4: mask tos for input route

Restore the lost masking of TOS in input route code to allow ip rules to match it properly. Problem [1] noticed by Shmulik Ladkani <[email protected]> [1] http://marc.info/?t=137331755300040&r=1&w=2 Fixes: 89aef89 ("ipv4: Delete routing cache.") Signed-off-by: Julian Anastasov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
akeromi · Feb 26, 2017 · 6e28099 · 6e28099
1 parent 8bcfd09
commit 6e28099
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
@@ -2009,6 +2009,7 @@ int ip_route_input_noref(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 {
 	int res;
 
+	tos &= IPTOS_RT_MASK;
 	rcu_read_lock();
 
 	/* Multicast recognition logic is moved from route cache to here.