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* SYSRET 64-Bit Breakout
@ 2012-06-13 12:26 Clark, Robert Graham
  2012-06-13 12:42 ` Avi Kivity
  2012-06-13 14:59 ` Paolo Bonzini
  0 siblings, 2 replies; 3+ messages in thread
From: Clark, Robert Graham @ 2012-06-13 12:26 UTC (permalink / raw)
  To: kvm@vger.kernel.org

All,

I've been looking at http://www.kb.cert.org/vuls/id/649219

Xen appears to be vulnerable as do a number of other products. KVM isn't listed. Some discussion on IRC indicates that KVM isn't likely to be vulnerable.

Can anyone confirm please?

-Rob

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: SYSRET 64-Bit Breakout
  2012-06-13 12:26 SYSRET 64-Bit Breakout Clark, Robert Graham
@ 2012-06-13 12:42 ` Avi Kivity
  2012-06-13 14:59 ` Paolo Bonzini
  1 sibling, 0 replies; 3+ messages in thread
From: Avi Kivity @ 2012-06-13 12:42 UTC (permalink / raw)
  To: Clark, Robert Graham; +Cc: kvm@vger.kernel.org

On 06/13/2012 03:26 PM, Clark, Robert Graham wrote:
> All,
> 
> I've been looking at http://www.kb.cert.org/vuls/id/649219
> 
> Xen appears to be vulnerable as do a number of other products. KVM isn't listed. Some discussion on IRC indicates that KVM isn't likely to be vulnerable.
> 
> Can anyone confirm please?

KVM is not vulnerable to this exploit.

-- 
error compiling committee.c: too many arguments to function



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: SYSRET 64-Bit Breakout
  2012-06-13 12:26 SYSRET 64-Bit Breakout Clark, Robert Graham
  2012-06-13 12:42 ` Avi Kivity
@ 2012-06-13 14:59 ` Paolo Bonzini
  1 sibling, 0 replies; 3+ messages in thread
From: Paolo Bonzini @ 2012-06-13 14:59 UTC (permalink / raw)
  To: Clark, Robert Graham; +Cc: kvm@vger.kernel.org

Il 13/06/2012 14:26, Clark, Robert Graham ha scritto:
> All,
> 
> I've been looking at http://www.kb.cert.org/vuls/id/649219
> 
> Xen appears to be vulnerable as do a number of other products. KVM
> isn't listed. Some discussion on IRC indicates that KVM isn't likely to
> be vulnerable.
> 
> Can anyone confirm please?

Xen is only vulnerable with paravirtualized guests.  KVM only support
hardware-assisted virtualization.

The Linux kernel that is used by KVM used to have similar
vulnerabilities, but they were fixed a long time ago (CVE-2005-1764,
CVE-2006-0744).

Paolo

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2012-06-13 15:00 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2012-06-13 12:26 SYSRET 64-Bit Breakout Clark, Robert Graham
2012-06-13 12:42 ` Avi Kivity
2012-06-13 14:59 ` Paolo Bonzini

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