linux-kernel - Re: [PATCH v4 3/3] MIPS: set stack/data protection as non-executable

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Date:	Wed, 5 Aug 2015 17:06:34 -0700
From:	Leonid Yegoshin <Leonid.Yegoshin@...tec.com>
To:	Paul Burton <paul.burton@...tec.com>
CC:	<daniel.sanders@...tec.com>, <linux-mips@...ux-mips.org>,
	<cernekee@...il.com>, <Zubair.Kakakhel@...tec.com>,
	<geert+renesas@...der.be>, <david.daney@...ium.com>,
	<peterz@...radead.org>, <heiko.carstens@...ibm.com>,
	<paul.gortmaker@...driver.com>, <behanw@...verseincode.com>,
	<macro@...ux-mips.org>, <cl@...ux.com>, <pkarat@...sta.com>,
	<linux@...ck-us.net>, <tkhai@...dex.ru>, <james.hogan@...tec.com>,
	<alexinbeijing@...il.com>, <rusty@...tcorp.com.au>,
	<Steven.Hill@...tec.com>, <lars.persson@...s.com>,
	<aleksey.makarov@...iga.com>, <linux-kernel@...r.kernel.org>,
	<ralf@...ux-mips.org>, <luto@...capital.net>,
	<dahi@...ux.vnet.ibm.com>, <markos.chandras@...tec.com>,
	<eunb.song@...sung.com>, <kumba@...too.org>
Subject: Re: [PATCH v4 3/3] MIPS: set stack/data protection as non-executable

On 08/05/2015 04:55 PM, Paul Burton wrote:
>
>
> As was pointed out last time you posted this, it breaks backwards
> compatibility with userland & thus cannot be applied.

Never observed since first version.

In other side, the problem with apps like ssh_keygen is observed in 
absence of executable stack protection.

- Leonid.
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