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    SubjectRe: [patch 1/2] [RFC] Simple tamper-proof device filesystem.
    On Mon, 17 Dec 2007 16:05:31 +0300
    Al Boldi <a1426z@gawab.com> wrote:

    > Indan Zupancic wrote:
    > > On Mon, December 17, 2007 01:40, Tetsuo Handa wrote:
    > > I think you can better spend your time on read-only bind mounts.
    >
    > That would be too coarse.
    >

    Actually, who needs to create device nodes? Just prohibit everyone from
    creating them, except "installer" and "udev" personality.
    This means removing CAP_MKNOD on a global scale.
    (OTOH, both don't need CAP_SYS_ADMIN. Maybe udev needs
    CAP_SYS_MODULE...)

    Now, stopping people from faking hotplug events is totally another
    story. Is that currently possible?
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