From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Elena Reshetova Date: Mon, 4 Sep 2017 13:11:55 +0300 Subject: [PATCH] net: mpls: prevent speculative execution MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CVE-2017-5753 CVE-2017-5715 Real commit text tbd Signed-off-by: Elena Reshetova Signed-off-by: Tim Chen Signed-off-by: Andy Whitcroft Signed-off-by: Kleber Sacilotto de Souza (cherry picked from commit 98a9550398f87c5430d5e893104e21caa1e2e8d3) Signed-off-by: Fabian Grünbichler --- net/mpls/af_mpls.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index ea4f481839dd..08dfb99e19f2 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -50,6 +50,8 @@ static struct mpls_route *mpls_route_input_rcu(struct net *net, unsigned index) if (index < net->mpls.platform_labels) { struct mpls_route __rcu **platform_label = rcu_dereference(net->mpls.platform_label); + + gmb(); rt = rcu_dereference(platform_label[index]); } return rt; -- 2.14.2