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    SubjectRe: [PATCH 3/7] procfs privacy: misc. entries
    On Mon, Apr 18, 2005 at 08:46:52PM +0200, Lorenzo Hernández García-Hierro wrote:
    > This patch changes the permissions of the following procfs entries to
    > restrict non-root users from accessing them:
    >
    > - /proc/devices
    > - /proc/cmdline
    > - /proc/version
    > - /proc/uptime
    > - /proc/cpuinfo

    This is utterly absurd. You can find out anything thats in /proc/cpuinfo
    by calling cpuid instructions yourself.
    Please enlighten me as to what security gains we achieve
    by not allowing users to see this ?

    Restricting lots of the other files are equally absurd.

    I'd also be very surprised if various random bits of userspace
    broke subtley due to this nonsense.

    Dave

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