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Date: Tue, 02 May 2017 18:38:22 +0200
From: David Gens <david.gens@...tu-darmstadt.de>
To: bancfc@...nmailbox.org
Cc: kernel-hardening@...ts.openwall.com
Subject: Re: Re: It looks like there will be no more public
versions of PaX and Grsec.
On 2017-05-02 16:22, bancfc@...nmailbox.org wrote:
> Hi David, I read your paper [1] about how RAP wouldn't defend against
> data-only attacks. Do you plan on contributing your PT-Rand mitigation
> to KSPP?
>
> That was never mentioned in the grsec RAP announcements for obvious
> marketing reasons. With KERNSEAL not being public no one can verify
> its effectiveness either.
>
>
> [1]
> https://www.internetsociety.org/sites/default/files/ndss2017_05B-4_Davi_paper.pdf
That is certainly doable (and it would be cool), but mainly depends on
how interesting
such a feature would be for upstream. My impression was that the
interest is rather limited,
since messing with the linear mapping generally is a big nono (because
of TLB pressure).
But we're really getting off-topic.
Best,
David
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