linux-kernel - Re: [BUG]memblock: fix overflow of array index

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Message-ID: <4F987ACB.8050604@linux.intel.com>
Date:	Wed, 25 Apr 2012 15:29:31 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Tejun Heo <tj@...nel.org>
CC:	Peter Teoh <htmldeveloper@...il.com>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, linux-mm@...ck.org
Subject: Re: [BUG]memblock: fix overflow of array index

On 04/25/2012 03:28 PM, Tejun Heo wrote:
> 
> All indexes in memblock are integers.  Changing that particular one to
> unsigned int doesn't fix anything.  I think it just makes things more
> confusing.  If there ever are cases w/ more then 2G memblocks, we're
> going for 64bit not unsigned.
> 

I would expect there to be plenty of memblocks larger than 2G?

	-hpa


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