linux-kernel - [PATCH 3.13.y-ckt 01/19] [3.13-stable only] ipv6: fix swapped ipv4/ipv6 mtu

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Message-Id: <1421359795-11155-2-git-send-email-kamal@canonical.com>
Date:	Thu, 15 Jan 2015 14:09:37 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Andy Whitcroft <apw@...onical.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13.y-ckt 01/19] [3.13-stable only] ipv6: fix swapped ipv4/ipv6 mtu_reduced callbacks

3.13.11-ckt14 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andy Whitcroft <apw@...onical.com>

Fixes up 4fab907195 ("tcp: fix tcp_release_cb() to dispatch via address
family for mtu_reduced()") backport which has swapped ipv4/ipv6 callbacks
for native IPv6 and mapped IPv4 sockets.

BugLink: http://bugs.launchpad.net/bugs/1404558
Signed-off-by: Andy Whitcroft <apw@...onical.com>
Fixes: e86507f2371b667b74e731e366fff55844e79463
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 net/ipv6/tcp_ipv6.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index d83045c..d540da2 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1640,7 +1640,7 @@ static const struct inet_connection_sock_af_ops ipv6_specific = {
 	.compat_setsockopt = compat_ipv6_setsockopt,
 	.compat_getsockopt = compat_ipv6_getsockopt,
 #endif
-	.mtu_reduced	   = tcp_v4_mtu_reduced,
+	.mtu_reduced	   = tcp_v6_mtu_reduced,
 };
 
 #ifdef CONFIG_TCP_MD5SIG
@@ -1672,7 +1672,7 @@ static const struct inet_connection_sock_af_ops ipv6_mapped = {
 	.compat_setsockopt = compat_ipv6_setsockopt,
 	.compat_getsockopt = compat_ipv6_getsockopt,
 #endif
-	.mtu_reduced	   = tcp_v6_mtu_reduced,
+	.mtu_reduced	   = tcp_v4_mtu_reduced,
 };
 
 #ifdef CONFIG_TCP_MD5SIG
-- 
1.9.1

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