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    SubjectRe: [PATCH 1/3] IMA: move read/write counters into struct inode
    On Wed, Oct 20, 2010 at 09:10:27AM -0400, John Stoffel wrote:

    > Does this mean I can't replace /bin/sh on a running system using IMA
    > at all, even if just one process has it opened and is running? So how
    > the hell am I supposed to do live upgrades on a system?

    rename(2). Prohibition against write(2) to binary being executed is
    *old*. Try to do the following:
    cp /bin/sh /tmp
    /tmp/sh &
    cat /bin/ls >/tmp/sh
    and you'll get
    sh: /tmp/sh: Text file busy

    That has nothing to do with IMA...

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      Last update: 2010-10-20 15:39    [W:0.020 / U:32.824 seconds]
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