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From: Ben Hutchings on 13 Mar 2010 15:40
On Fri, 2010-03-12 at 16:27 -0800, Greg KH wrote:
> 2.6.32-stable review patch. If anyone has any objections, please let me know.
>
> ----------------
> From: Gleb Natapov <gleb(a)redhat.com>
>
> commit e92805ac1228626c59c865f2f4e9059b9fb8c97b upstream.
>
> Add CPL checking in case emulator is tricked into emulating
> privilege instruction from userspace.

There were more security fixes released along with this, which surely
belong in a stable update:

1871c6020d7308afb99127bba51f04548e7ca84e KVM: x86 emulator: fix memory access during x86 emulation
f850e2e603bf5a05b0aee7901857cf85715aa694 KVM: x86 emulator: Check IOPL level during io instruction emulation
d4c6a1549c056f1d817e8f6f2f97d8b44933472f KVM: x86 emulator: Fix popf emulation

Ben.

--
Ben Hutchings
It's easier to fight for one's principles than to live up to them.
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