linux-kernel - Re: [kernel-hardening] rowhammer protection [was Re: Getting interrupt every million cache misses]

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Message-ID: <1edd96a2-b5fb-8131-4042-7410833dd0dd@gruss.cc>
Date:   Tue, 1 Nov 2016 09:13:20 +0100
From:   Daniel Gruss <daniel@...ss.cc>
To:     kernel-hardening@...ts.openwall.com, Ingo Molnar <mingo@...nel.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Kees Cook <keescook@...omium.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        kernel list <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: Re: [kernel-hardening] rowhammer protection [was Re: Getting
 interrupt every million cache misses]

On 01.11.2016 09:10, Pavel Machek wrote:
> cpu family     : 6
> model	       	 : 23
> model name	 : Intel(R) Core(TM)2 Duo CPU     E7400  @ 2.80GHz
> stepping	 : 10
> microcode	 : 0xa07
>
> so rowhammerjs/native is not available for this system. Bit mapping
> for memory hash functions would need to be reverse engineered for more
> effective attack.

By coincidence, we wrote a tool to do that in software: 
https://github.com/IAIK/drama ;)