3.6.11.1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Steffen Klassert <steffen.klassert@xxxxxxxxxxx> [ Upstream commit 4ac7bed1ff5f935525a8c71c347bbc8cdff9e067 ] Routes with locked mtu should not use learned pmtu informations, so do not update the pmtu on these routes. Reported-by: Julian Anastasov <ja@xxxxxx> Signed-off-by: Steffen Klassert <steffen.klassert@xxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> --- net/ipv4/route.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index fba3240..6d0ae55 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -912,6 +912,9 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu) struct dst_entry *dst = &rt->dst; struct fib_result res; + if (dst_metric_locked(dst, RTAX_MTU)) + return; + if (dst->dev->mtu < mtu) return; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html