[Hardy] CVE-2010-4247: XEN: Add yield points to blktap and blkback

[Tim Gardner]

On 06/07/2011 06:28 PM, John Johansen wrote:
> On 06/07/2011 09:19 AM, Tim Gardner wrote:
>> On 06/07/2011 08:52 AM, Stefan Bader wrote:
>>> On 01.06.2011 16:06, Stefan Bader wrote:
>>>> As far as I can see this only affects Hardy as that is the
>>>> only place that creates a dom0 kernel. The code itself seems to
>>>> be present in the lucid-ec2 tree, but as we do not support dom0
>>>> and those are drivers for that. So I set the Lucid-ec2 status
>>>> to not-affected, but I am thinking of adding the changes
>>>> anyway, just in case...
>>>>
>>>> -Stefan
>> <snip>
>>>
>>> Pushing this one as I did not see any replies, yet.
>>>
>>> -Stefan
>>>
>>
>> It didn't get reviewed because I couldn't figure out what you
>> wanted. As far as I can tell you're _thinking_ of adding changes to
>> drivers that are not in fact even used, nor will they _ever_ be
>> used since we won't have a Lucid DOM0 host unless we provide one
>> via an LTS backported kernel. In which case the point is moot.
>>
> As I read it, this is for Hardy where we do have dom0, and not Lucid
> because we don't support dom0 there.
>
> My big question when looking at the patch was why combine the two
> patches its based off?  I found it hard to look at and compare the
> patch that way.
>

Ah, I must not have had my coffee yet. I had lucid-ec2 on the brain and 
couldn't figure out why you'd want to apply Dom0 patches therein.

rtg
-- 
Tim Gardner tim.gardner at canonical.com