tree 33b03640ee6fa653470485c4e7691e0ea7fe3004
parent 08da44aedba0f493e10695fa334348a7a4f72eb3
author Paolo Bonzini <pbonzini@redhat.com> 1414068854 +0200
committer Paolo Bonzini <pbonzini@redhat.com> 1414150235 +0200

KVM: emulate: avoid accessing NULL ctxt->memopp

A failure to decode the instruction can cause a NULL pointer access.
This is fixed simply by moving the "done" label as close as possible
to the return.

This fixes CVE-2014-8481.

Reported-by: Andy Lutomirski <luto@amacapital.net>
Cc: stable@vger.kernel.org
Fixes: 41061cdb98a0bec464278b4db8e894a3121671f5
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>