linux-kernel - Re: [PATCH] bridge: don't try to update timers in case of broken MLD queries

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Message-Id: <20130805.154420.599165201115948715.davem@davemloft.net>
Date:	Mon, 05 Aug 2013 15:44:20 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	linus.luessing@....de
Cc:	bridge@...ts.linux-foundation.org, stephen@...workplumber.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	herbert@...dor.apana.org.au, amwang@...hat.com,
	linux@...er-net.org.uk, pebolle@...cali.nl
Subject: Re: [PATCH] bridge: don't try to update timers in case of broken
 MLD queries

From: Linus Lüssing <linus.luessing@....de>
Date: Tue,  6 Aug 2013 00:32:05 +0200

> Currently we are reading an uninitialized value for the max_delay
> variable when snooping an MLD query message of invalid length and would
> update our timers with that.
> 
> Fixing this by simply ignoring such broken MLD queries (just like we do
> for IGMP already).
> 
> This is a regression introduced by:
> "bridge: disable snooping if there is no querier" (b00589af3b04)
> 
> Reported-by: Paul Bolle <pebolle@...cali.nl>
> Signed-off-by: Linus Lüssing <linus.luessing@....de>

Applied, thanks.
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