From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Joanna Rutkowska <joanna@invisiblethingslab.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: Xen 4.0.0x allows for data corruption in Dom0
Date: Sat, 06 Mar 2010 13:36:15 +0000 [thread overview]
Message-ID: <C7B80ACF.C5EE%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <C7B7F4C4.C5D8%keir.fraser@eu.citrix.com>
On 06/03/2010 12:02, "Keir Fraser" <keir.fraser@eu.citrix.com> wrote:
> On 06/03/2010 10:12, "Joanna Rutkowska" <joanna@invisiblethingslab.com>
> wrote:
>
>> It's really interesting how much control does the VM have over the data
>> (and location) that are corrupted in Dom0 -- if it has any control, then
>> it might allow for an interesting VM escape attack perhaps :)
>>
>> Unfortunately we don't have time to investigate this problem any further
>> in our lab.
>
> Thanks, I'll see if I can repro with your simple setup. It's an interesting
> one since presumably the domU is not doing much other waiting on its
> rootdelay timeout when the corruption manifests. Sounds like the dom0 kernel
> version doesn't matter at all?
Tried a few times and no luck reproducing so far. I hope some other people
on the list also will give it a go, since it's so easy to try it out.
-- Keir
next parent reply other threads:[~2010-03-06 13:36 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <C7B7F4C4.C5D8%keir.fraser@eu.citrix.com>
2010-03-06 13:36 ` Keir Fraser [this message]
2010-03-07 14:36 ` Xen 4.0.0x allows for data corruption in Dom0 Pasi Kärkkäinen
2010-03-07 14:39 ` Keir Fraser
2010-03-07 16:12 ` Pasi Kärkkäinen
2010-03-08 23:22 ` Daniel Stodden
2010-03-08 23:30 ` Joanna Rutkowska
2010-03-08 23:52 ` Daniel Stodden
2010-03-08 23:56 ` Joanna Rutkowska
2010-03-09 0:33 ` Daniel Stodden
2010-03-09 8:25 ` Pasi Kärkkäinen
2010-03-09 9:37 ` Jan Beulich
2010-03-09 10:15 ` Jan Beulich
2010-03-09 10:17 ` Keir Fraser
2010-03-09 10:15 ` Keir Fraser
2010-03-09 10:25 ` Pasi Kärkkäinen
2010-03-09 10:43 ` Keir Fraser
2010-03-09 12:03 ` Pasi Kärkkäinen
2010-03-09 10:42 ` Jan Beulich
2010-03-09 23:28 ` Jeremy Fitzhardinge
2010-03-10 1:33 ` Dan Magenheimer
2010-03-10 18:02 ` Jeremy Fitzhardinge
[not found] <C7B80F95.C5F3%keir.fraser@eu.citrix.com>
2010-03-06 13:37 ` Joanna Rutkowska
2010-03-06 17:18 ` Keir Fraser
[not found] <4B922A89.2060105@invisiblethingslab.com>
2010-03-08 22:24 ` Jeremy Fitzhardinge
2010-03-08 22:34 ` Joanna Rutkowska
2010-03-08 23:12 ` Jeremy Fitzhardinge
2010-03-08 23:23 ` Joanna Rutkowska
2010-03-08 23:41 ` Jeremy Fitzhardinge
2010-03-08 23:48 ` Joanna Rutkowska
2010-03-09 0:18 ` James Harper
2010-03-09 0:20 ` Joanna Rutkowska
2010-03-08 23:32 ` Daniel Stodden
[not found] ` <4B958A42.4000407@invisiblethingslab.com>
2010-03-08 23:46 ` Daniel Stodden
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