Messages in this thread | | | Date | Fri, 18 Nov 2011 13:39:38 -0800 | Subject | Re: [PATCH v6 0/3] security: Yama LSM | From | Kees Cook <> |
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On Thu, Nov 17, 2011 at 8:17 PM, James Morris <jmorris@namei.org> wrote: > On Wed, 26 Oct 2011, Kees Cook wrote: > >> As discussed at the Linux Security Summit, I'm resubmitting this >> code. As an LSM, it has coherent policy around expanding specific DAC >> behaviors. There is no need for it to be a full-blown MAC, since it is >> not intended to be one, but rather to be a simplified expansion to DAC, >> with system-wide knobs. See the specific patches for details... > > In principle, Yama can be merged, however there are features with > unresolved upstream naks: > > - Handling symlinks in sticky directories > - The ptrace tracker > > These still need to be resolved.
Oleg, Roland,
Do you have any objection to my LSM performing ptrace restrictions? It's entirely self-contained, and all the major upstream crash handlers are already using the prctl() interface it uses to declare ptrace attach relationships.
Thanks,
-Kees
-- Kees Cook ChromeOS Security
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