Re: Hyper-Threading Vulnerability

Alan Cox
2005-05-13T22:49:28Z

On Gwe, 2005-05-13 at 22:59, Matt Mackall wrote:
> It might not be much of a problem though. If he's a bit off per guess
> (really impressive), he'll still be many bits off by the time there's
> enough entropy in the primary pool to reseed the secondary pool so he
> can check his guesswork.

You can also disable the tsc to user space in the intel processors.
Thats something they anticipated as being neccessary in secure
environments long ago. This makes the attack much harder.