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[Xen-devel] [PATCH] fxsave/fxrstor adjustments

To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH] fxsave/fxrstor adjustments
From: "Jan Beulich" <jbeulich@xxxxxxxxxx>
Date: Mon, 24 Apr 2006 17:31:14 +0200
Delivery-date: Mon, 24 Apr 2006 08:30:53 -0700
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This patch addresses CVE-2006-1056 (information leak from fxsave/fxrstor on AMD 
CPUs) and also adjusts 64-bit handling
so that full 64-bit RIP/RDP values get saved/restored. More fine-grained 
handling may be needed if 32-bit processes are
expected to properly see their selectors (native Linux doesn't currently do 
that either, but there is a patch to adjust
it there).

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

Attachment: xen-x86-fxsr.patch
Description: Text document

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