linux-kernel - Re: [slabinfo PATCH] Fix off-by-one after readlink() call

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Date:	Fri, 14 Oct 2011 12:53:30 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Thomas Jarosch <thomas.jarosch@...ra2net.com>
cc:	Christoph Lameter <cl@...two.org>, linux-kernel@...r.kernel.org,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [slabinfo PATCH] Fix off-by-one after readlink() call

On Fri, 14 Oct 2011, Thomas Jarosch wrote:

> The problem is the line after the readlink() call:
> 
> buffer[count] = '\0';
> 
> The common technique is to reduce the buffer size by one.
> Another fix would be to check
> 
> "
> if (count < 0 || count == sizeof(buffer))
>     fatal();
> "
> 
> Reducing the buffer size by one is easier IMHO.
> 

I think this should be used for changelog.

Acked-by: David Rientjes <rientjes@...gle.com>
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