linux-kernel - Re: [RFC][PATCH] Randomize kernel base address on boot

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Message-ID: <4DE54C66.10106@zytor.com>
Date:	Tue, 31 May 2011 13:15:34 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Dan Rosenberg <drosenberg@...curity.com>,
	Matthew Garrett <mjg@...hat.com>,
	Tony Luck <tony.luck@...il.com>, linux-kernel@...r.kernel.org,
	kees.cook@...onical.com, davej@...hat.com,
	torvalds@...ux-foundation.org, adobriyan@...il.com,
	eranian@...gle.com, penberg@...nel.org, davem@...emloft.net,
	Arjan van de Ven <arjan@...radead.org>,
	Valdis.Kletnieks@...edu, Andrew Morton <akpm@...ux-foundation.org>,
	pageexec@...email.hu, Vivek Goyal <vgoyal@...hat.com>
Subject: Re: [RFC][PATCH] Randomize kernel base address on boot

On 05/31/2011 12:55 PM, Ingo Molnar wrote:
> 
> So ... could you *please* not shelf this idea just because people 
> used lkml for what it was invented: argued with each other rather 
> forcefully? :-)
> 

The real issue is that if it can be (semi)trivially bypassed, then there
may not be much reason to do it.

Other than that, Ingo's idea at least have the merit that it would break
only older bootloaders doing things wrong.

	-hpa
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