Re: SecurityFocus Article

[Segher Boessenkool]

> If the SMRAM control register exists, the D_LCK bit can be set
> in 16-bit mode during the boot sequence. This makes the SMRAM
> register read/only so the long potential compromise sequence
> that Mr. Duflot describes would not be possible. If the control
> register doesn't exist, then the vulnerably doesn't exist.

No, if there is no mechanism to lock down SMmode (re)configuration,
the vulnerability of course _does_ exist.

> The writer doesn't like the fact that a root process can execute

Rest of this email happily ignored...


Segher

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