Re: Intel microcode fixes [OFF-TOPIC]

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 20 Nov 1998 17:49:48 +0000 (GMT)


> EGADS! Is there NO security on the processor microcode? Could this be
> exploited to do evil narsty things?

1. You can only load microcode from supervisor mode

2. There's a crude attempt to checksum it to stop people loading bogus
microcode

3. There's an even cruder attempt to make it hard by not documenting
how its done

4. A reset clears the update

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