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ipv6: Make MLD packets to only be processed locally

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[ Upstream commit 4c938d22c88a9ddccc8c55a85e0430e9c62b1ac5 ]

Before commit daad151263 ("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: daad151263 ("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>
This commit is contained in:
Angga
2015-07-03 14:40:52 +12:00
committed by Greg Kroah-Hartman
parent 9f6191daa5
commit 3b9393dc1d
1 changed files with 3 additions and 3 deletions
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net/ipv6/ip6_input.c
+3 -3
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@@ -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 */
}