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    SubjectRe: i686 quirk for AMD Geode
    On Tue, Nov 10, 2009 at 10:15:58PM -0800, H. Peter Anvin wrote:
    > On 11/10/2009 09:52 PM, Willy Tarreau wrote:
    > >
    > > - last, the probability of having an NX page just after an
    > > executable one seems too tight to me to even constitute
    > > an attack vector ! BTW, I'm not even certain that all CPUs
    > > correctly implement this check !
    > >
    > Do you have *any* *evidence* *whatsoever* for that assertion?!

    No, just basic feeling based on implementation cost and difficulty
    vs gains as I explained.

    > I personally will consider something that doesn't implement proper
    > security check to be a potential security hole and will NAK the patch.

    Even in the case of the NOPL instruction ? I clearly don't see
    the potential security hole !


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