linux-kernel - Re: [PATCH RFC] mm: protect suid binaries against rowhammer with copy-on-read mappings

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Message-ID: <550AC958.9010502@suse.cz>
Date:	Thu, 19 Mar 2015 14:04:24 +0100
From:	Vlastimil Babka <vbabka@...e.cz>
To:	Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
	"Kirill A. Shutemov" <kirill@...temov.name>,
	Konstantin Khlebnikov <koct9i@...il.com>
CC:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andy Lutomirski <luto@...capital.net>
Subject: Re: [PATCH RFC] mm: protect suid binaries against rowhammer with
 copy-on-read mappings

On 03/18/2015 12:41 PM, Konstantin Khlebnikov wrote:
> On 18.03.2015 12:57, Kirill A. Shutemov wrote:
>>
>> I don't think it worth it. The only right way to fix the problem is ECC
>> memory.
>>
> 
> ECC seems good protection until somebody figure out how to break it too.

I doubt that kind of attitude can get us very far. If we can't trust the
hardware, we lose sooner or later.

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