Messages in this thread | | | Date | Wed, 1 Jun 2005 10:25:05 -0700 | From | Chris Wright <> | Subject | Re: [PATCH] Sample fix for hyperthread exploit |
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* Con Kolivas (kernel@kolivas.org) wrote: > On Wed, 1 Jun 2005 22:06, Arjan van de Ven wrote: > > > Comments? > > > > I don't think it's really worth it, but if you go this way I'd rather do > > this via a prctl() so that apps can tell the kernel "I'd like to run > > exclusive on a core". That'd be much better than blindly isolating all > > applications. > > I agree, and this is where we (could) implement the core isolation. I'm still > under the impression (as you appear to be) that this theoretical exploit is > not worth trying to work around.
Also, uid is not sufficient. Something more comprehensive (like ability to ptrace) would be appropriate.
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