linux-kernel - Re: [PATCH] fib_trie: potential out of bounds access in trie_show

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Message-ID: <20130724150000.GB22402@order.stressinduktion.org>
Date:	Wed, 24 Jul 2013 17:00:00 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Jerry Snitselaar <jerry.snitselaar@...cle.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fib_trie: potential out of bounds access in trie_show_stats()

On Mon, Jul 22, 2013 at 12:01:58PM -0700, Jerry Snitselaar wrote:
> With the <= max condition in the for loop, it will be always go 1
> element further than needed. If the condition for the while loop is
> never met, then max is MAX_STAT_DEPTH, and for loop will walk off the
> end of nodesizes[].
> 
> Signed-off-by: Jerry Snitselaar <jerry.snitselaar@...cle.com>

Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Thanks,

  Hannes

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