linux-kernel - Re: [RFC] stack and heap are executable on x86

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Message-ID: <50D4E288.7070507@zytor.com>
Date:	Fri, 21 Dec 2012 14:28:24 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	Jim Kukunas <james.t.kukunas@...ux.intel.com>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [RFC] stack and heap are executable on x86_64

On 12/21/2012 02:26 PM, Yinghai Lu wrote:
> On Fri, Dec 21, 2012 at 2:23 PM, H. Peter Anvin <hpa@...or.com> wrote:
>> On 12/21/2012 02:22 PM, Yinghai Lu wrote:
>>>
>>> please check attached patch that set NX for data/bss/brk with 64bit.
>>>
>>
>> This is on top of for-x86-boot I presume?
> 
> yes, but should work on current linus tree.
> 
> Do we want one that handle low mapping for current linus tree ?
> 

Let's worry about that one after New Year.  I am hoping to get all these
patchsets into -tip either the week of Jan 7 or Jan 14 (I currently
don't know when I will be back.)

	-hpa


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