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Date: Tue, 09 Apr 2013 11:59:15 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Eric Northup <digitaleric@google.com>
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Subject: Re: [kernel-hardening] Re: [PATCH] x86: make IDT read-only
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On 04/09/2013 11:54 AM, Eric Northup wrote:
> 
> The GDT is a problem if the address returned by 'sgdt' is
> kernel-writable - it doesn't necessarily reveal the random offset, but
> I'm pretty sure that writing to the GDT could cause privilege
> escalation.
> 

That is a pretty safe assumption...

	-hpa