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    SubjectRe: Direct access to hardware
    On 21 Jul 2000, Miquel van Smoorenburg wrote:

    > In article <cistron.Pine.LNX.4.21.0007211543460.12570-100000@anime.net>,
    > Dan Hollis <goemon@sasami.anime.net> wrote:
    > >On Sat, 22 Jul 2000, Ville Herva wrote:
    > >> So, would it be feasible to make it possible to disable direct hardware
    > >> access (/dev/mem, /dev/nvram, HD ioctls, what else?) completely in kernel
    > >> config?
    > >
    > >I would certainly feel better if this were possible, in which case Andre's
    > >patch would be more reasonable.
    >
    > It _is_ possible. Check out "capabilities".

    It isn't possible. Root can bypass them all completely, as long as
    /dev/kmem etc. exist. Shall we delete capabilities on this basis? I think
    not - so why apply that argument to Andre's bugfix?


    James.


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