Patch "ipv6: Make MLD packets to only be processed locally" has been added to the 3.10-stable tree

Patch "ipv6: Make MLD packets to only be processed locally" has been added to the 3.10-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ipv6: Make MLD packets to only be processed locally

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ipv6-make-mld-packets-to-only-be-processed-locally.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Sat Sep 26 11:20:32 PDT 2015
From: Angga <Hermin.Anggawijaya@alliedtelesis.co.nz>
Date: Fri, 3 Jul 2015 14:40:52 +1200
Subject: ipv6: Make MLD packets to only be processed locally

From: Angga <Hermin.Anggawijaya@alliedtelesis.co.nz>

[ Upstream commit 4c938d22c88a9ddccc8c55a85e0430e9c62b1ac5 ]

Before commit daad151263cf ("ipv6: Make ipv6_is_mld() inline and use it
from ip6_mc_input().") MLD packets were only processed locally. After the
change, a copy of MLD packet goes through ip6_mr_input, causing
MRT6MSG_NOCACHE message to be generated to user space.

Make MLD packet only processed locally.

Fixes: daad151263cf ("ipv6: Make ipv6_is_mld() inline and use it from ip6_mc_input().")
Signed-off-by: Hermin Anggawijaya <hermin.anggawijaya@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/ip6_input.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -325,10 +325,10 @@ int ip6_mc_input(struct sk_buff *skb)
 				if (offset < 0)
 					goto out;
 
-				if (!ipv6_is_mld(skb, nexthdr, offset))
-					goto out;
+				if (ipv6_is_mld(skb, nexthdr, offset))
+					deliver = true;
 
-				deliver = true;
+				goto out;
 			}
 			/* unknown RA - process it normally */
 		}


Patches currently in stable-queue which might be from Hermin.Anggawijaya@alliedtelesis.co.nz are

queue-3.10/ipv6-make-mld-packets-to-only-be-processed-locally.patch