Messages in this thread | | | From | (David Wagner) | Subject | Re: [RFC][PATCH v3] Unprivileged: Disable raising of privileges | Date | Thu, 31 Dec 2009 17:52:14 +0000 (UTC) |
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Alan Cox wrote: >Look up the sendmail security archive and you'll even find examples where >enforcing extra security on setuid *caused* security problems to show up >that were basically impossible to hit otherwise.
Yes, we know: people have mentioned the sendmail bug multiple times in this thread. That's exactly the hazard that this proposed patch was intended to help address. That's exactly the hazard that all this discussion has been focused on.
This patch is not a security model. It may facilitate other security models, hopefully, but it's not intended as a security model in itself.
>We have a security system, with a set of interfaces for attaching >security models, please stop trying to go round the back of the kernel >design because you can't be bothered to do the required work to do the >job right and would rather add more unmaintainable crap all over the >place.
Got a constructive suggestion for a better way to implement this? My impression is that all thread participants have been happy to listen to constructive suggestions about alternative ways to achieve the goals, from people who have payed attention to the discussion and taken the time to understand the points that havee been raised so far.
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