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SubjectRe: [RFC][PATCH 7/7] kref: Implement using refcount_t
On Wed, Nov 16, 2016 at 09:31:55AM +0100, Ingo Molnar wrote:
> So what I'd love to see is to have a kernel option that re-introduces some
> historic root (and other) holes that can be exploited deterministically -
> obviously default disabled.

Ick, I don't want to have to support nasty #ifdefs for
"CONFIG_TOTALLY_INSECURE" type options in code logic for the next 20+
years, do you?

> I'd restrict this to reasonably 'deterministic' holes, and the exploits themselves
> could be somewhere in tools/. (Obviously only where the maintainers agree to host
> the code.) They wouldn't give a root shell, they'd only test whether they reached
> uid0 (or some other elevated privilege).

Having exploits in tools/ would be good, I would like to see that, as
then we can ensure that we don't ever introduce old problems that we
have fixed again in the future. That I have no objection to.

thanks,

greg k-h

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