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