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    SubjectRe: [PATCH v6 0/3] security: Yama LSM
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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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