From: Pavel Machek <pavel@ucw.cz>
To: Ingo Molnar <mingo@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Kees Cook <keescook@chromium.org>,
Peter Zijlstra <peterz@infradead.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
kernel list <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@redhat.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
"kernel-hardening@lists.openwall.com"
<kernel-hardening@lists.openwall.com>
Subject: Re: [kernel-hardening] rowhammer protection [was Re: Getting interrupt every million cache misses]
Date: Tue, 1 Nov 2016 09:10:43 +0100 [thread overview]
Message-ID: <20161101081043.GA27659@amd> (raw)
In-Reply-To: <20161101063359.GA27822@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 1136 bytes --]
Hi!
> * Pavel Machek <pavel@ucw.cz> wrote:
>
> > I'm not going to buy broken hardware just for a test.
>
> Can you suggest a method to find heavily rowhammer affected hardware? Only by
> testing it, or are there some chipset IDs ranges or dmidecode info that will
> pinpoint potentially affected machines?
Testing can be used. https://github.com/mseaborn/rowhammer-test.git
. It finds faults at 1 of 2 machines here (but takes half an
hour). Then, if your hardware is one of ivy/sandy/haswell/skylake,
https://github.com/IAIK/rowhammerjs.git can be used for much faster
attack (many flips a second).
Unfortunately, what I have here is:
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.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]
next prev parent reply other threads:[~2016-11-01 8:10 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-26 20:54 Getting interrupt every million cache misses Pavel Machek
2016-10-27 8:28 ` Peter Zijlstra
2016-10-27 8:46 ` Pavel Machek
2016-10-27 9:15 ` Peter Zijlstra
2016-10-27 9:11 ` Pavel Machek
2016-10-27 9:33 ` Peter Zijlstra
2016-10-27 20:40 ` [kernel-hardening] " Kees Cook
2016-10-27 20:40 ` Kees Cook
2016-10-27 21:27 ` [kernel-hardening] rowhammer protection [was Re: Getting interrupt every million cache misses] Pavel Machek
2016-10-27 21:27 ` Pavel Machek
2016-10-28 7:07 ` [kernel-hardening] " Ingo Molnar
2016-10-28 7:07 ` Ingo Molnar
2016-10-28 8:50 ` [kernel-hardening] " Pavel Machek
2016-10-28 8:50 ` Pavel Machek
2016-10-28 8:59 ` [kernel-hardening] " Ingo Molnar
2016-10-28 8:59 ` Ingo Molnar
2016-10-28 11:55 ` [kernel-hardening] " Pavel Machek
2016-10-28 11:55 ` Pavel Machek
2016-10-28 9:04 ` [kernel-hardening] " Peter Zijlstra
2016-10-28 9:04 ` Peter Zijlstra
2016-10-28 9:27 ` [kernel-hardening] " Vegard Nossum
2016-10-28 9:27 ` Vegard Nossum
2016-10-28 9:35 ` [kernel-hardening] " Ingo Molnar
2016-10-28 9:35 ` Ingo Molnar
2016-10-28 9:47 ` [kernel-hardening] " Vegard Nossum
2016-10-28 9:47 ` Vegard Nossum
2016-10-28 9:53 ` [kernel-hardening] " Mark Rutland
2016-10-28 11:27 ` Pavel Machek
2016-10-28 11:27 ` Pavel Machek
2016-10-28 9:51 ` [kernel-hardening] " Mark Rutland
2016-10-28 11:21 ` Pavel Machek
2016-10-28 14:05 ` Mark Rutland
2016-10-28 14:18 ` Peter Zijlstra
2016-10-28 18:30 ` Pavel Machek
2016-10-28 18:48 ` Peter Zijlstra
2016-11-02 18:13 ` Pavel Machek
2016-10-28 17:27 ` Pavel Machek
2016-10-29 13:06 ` Daniel Gruss
2016-10-29 19:42 ` Pavel Machek
2016-10-29 20:05 ` Daniel Gruss
2016-10-29 20:14 ` Daniel Gruss
2016-10-29 21:05 ` Pavel Machek
2016-10-29 21:07 ` Daniel Gruss
2016-10-29 21:45 ` Pavel Machek
2016-10-29 21:49 ` Daniel Gruss
2016-10-29 22:01 ` Pavel Machek
2016-10-29 22:02 ` Daniel Gruss
2016-10-31 8:27 ` Pavel Machek
2016-10-31 14:47 ` Mark Rutland
2016-10-31 21:13 ` Pavel Machek
2016-10-31 22:09 ` Mark Rutland
2016-11-01 6:33 ` Ingo Molnar
2016-11-01 7:20 ` Daniel Micay
2016-11-01 7:53 ` Daniel Gruss
2016-11-01 8:10 ` Pavel Machek [this message]
2016-11-01 8:13 ` Daniel Gruss
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20161101081043.GA27659@amd \
--to=pavel@ucw.cz \
--cc=acme@redhat.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=keescook@chromium.org \
--cc=kernel-hardening@lists.openwall.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.