netdev - Re: [PATCH 1/2] ipv6: Fix regression caused by efe4208 in udp_v6_mcast

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Message-ID: <1401395855.3645.53.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 29 May 2014 13:37:35 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Sven Wegener <sven.wegener@...aler.net>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH 1/2] ipv6: Fix regression caused by efe4208 in
 udp_v6_mcast_next()

On Thu, 2014-05-29 at 20:27 +0000, Sven Wegener wrote:
> Commit efe4208 ("ipv6: make lookups simpler and faster") introduced a
> regression in udp_v6_mcast_next(), resulting in multicast packets not
> reaching the destination sockets under certain conditions.
> 
> The packet's IPv6 addresses are wrongly compared to the IPv6 addresses
> from the function's socket argument, which indicates the starting point
> for looping, instead of the loop variable. If the addresses from the
> first socket do not match the packet's addresses, no socket in the list
> will match.
> 
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: stable@...r.kernel.org # 3.13+
> Signed-off-by: Sven Wegener <sven.wegener@...aler.net>
> ---
>  net/ipv6/udp.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

Acked-by: Eric Dumazet <edumazet@...gle.com>

I removed the CC stable@ , as you should not have use it.

Thanks


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