From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Elena Reshetova <elena.reshetova@intel.com>
Date: Mon, 4 Sep 2017 13:11:53 +0300
Subject: [PATCH] ipv6: prevent speculative execution
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CVE-2017-5753
CVE-2017-5715

Real commit text tbd

Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
(cherry picked from commit fdb98114a31aa5c0083bd7cd5b42ea569b6f77dc)
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
 net/ipv6/raw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 60be012fe708..1a0eae661512 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -726,6 +726,7 @@ static int raw6_getfrag(void *from, char *to, int offset, int len, int odd,
 	if (offset < rfv->hlen) {
 		int copy = min(rfv->hlen - offset, len);
 
+		gmb();
 		if (skb->ip_summed == CHECKSUM_PARTIAL)
 			memcpy(to, rfv->c + offset, copy);
 		else
-- 
2.14.2