xfrm4: Invalidate all ipv4 routes on IPsec pmtu events

[firefly-linux-kernel-4.4.55.git] / net / ipv4 / ipcomp.c

diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index d3ab47e19a896277161c2bf1b87706c20ebd73be..9a46daed2f3c05be9ed82138edac731fcc571145 100644 (file)
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -47,9 +47,12 @@ static void ipcomp4_err(struct sk_buff *skb, u32 info)
        if (!x)
                return;
 
-       if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
+       if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) {
+               atomic_inc(&flow_cache_genid);
+               rt_genid_bump(net);
+
                ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_COMP, 0);
-       else
+       } else
                ipv4_redirect(skb, net, 0, 0, IPPROTO_COMP, 0);
        xfrm_state_put(x);
 }