Re: CVE request: kvm: check cpl before emulating debug register access

[Mark J Cox <mjc () redhat com>]

On Thu, 29 Oct 2009, Eugene Teo wrote:
> Quote from the upstream commit:
> "Debug registers may only be accessed from cpl 0.  Unfortunately, vmx will 
> code to emulate the instruction even though it was issued from guest 
> userspace, possibly leading to an unexpected trap later."
>
> Introduced in v2.6.30-rc1; Fixed in v2.6.32-rc1.
>
> http://bugzilla.redhat.com/531660
> http://git.kernel.org/linus/0a79b009525b160081d75cef5dbf45817956acf2

Please use CVE-2009-3722

Mark