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Re: [Xen-devel] Xen 4.0.0x allows for data corruption in Dom0
| To: | Joanna Rutkowska <joanna@xxxxxxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Xen 4.0.0x allows for data corruption in Dom0 |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Sat, 06 Mar 2010 12:02:12 +0000 |
| Cc: | |
| Delivery-date: | Sat, 06 Mar 2010 04:03:51 -0800 |
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| Thread-topic: | [Xen-devel] Xen 4.0.0x allows for data corruption in Dom0 |
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On 06/03/2010 10:12, "Joanna Rutkowska" <joanna@xxxxxxxxxxxxxxxxxxxxxx> 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? Regards, Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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