linux-kernel - Re: [PATCH 0/2] make kASLR vs hibernation boot-time selectable

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Message-ID: <539A0DC2.1010203@zytor.com>
Date:	Thu, 12 Jun 2014 13:29:54 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Kees Cook <keescook@...omium.org>
CC:	LKML <linux-kernel@...r.kernel.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	linux-pm@...r.kernel.org
Subject: Re: [PATCH 0/2] make kASLR vs hibernation boot-time selectable

On 06/12/2014 01:27 PM, Kees Cook wrote:
>>
>> Any way we can make them work together instead?
> 
> I'm sure there is, but I don't know the solution. :)
> 
> At the very least this gets us one step closer (we can build them together).
> 

But it is really invasive.

I have to admit to being somewhat fuzzy on what the core problem with
hibernation and kASLR is... in both cases there is a set of pages that
need to be installed, some of which will overlap the loader kernel.
What am I missing?

	-hpa


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