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

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Message-ID: <20110531195051.GB26970@elte.hu>
Date:	Tue, 31 May 2011 21:50:51 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Dan Rosenberg <drosenberg@...curity.com>
Cc:	Matthew Garrett <mjg@...hat.com>, "H. Peter Anvin" <hpa@...or.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


* Dan Rosenberg <drosenberg@...curity.com> wrote:

> [...] the possibility of local attackers performing cache timing 
> attacks to find the kernel image location at runtime, [...]

How would these work, roughly?

Thanks,

	Ingo
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