From: Nadav Amit <namit@cs.technion.ac.il>
Date: Thu, 2 Oct 2014 22:10:04 +0000 (+0300)
Subject: KVM: x86: Decoding guest instructions which cross page boundary may fail
X-Git-Tag: fixes-against-v3.18-rc2~9^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08da44aedba0f493e10695fa334348a7a4f72eb3;p=pandora-kernel.git

KVM: x86: Decoding guest instructions which cross page boundary may fail

Once an instruction crosses a page boundary, the size read from the second page
disregards the common case that part of the operand resides on the first page.
As a result, fetch of long insturctions may fail, and thereby cause the
decoding to fail as well.

Cc: stable@vger.kernel.org
Fixes: 5cfc7e0f5e5e1adf998df94f8e36edaf5d30d38e
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

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