• Matthew Garrett's avatar
    egg: Request that secure memory not be dumped to disk · e6822428
    Matthew Garrett authored
    Linux 3.4 added support for the MADV_DONTDUMP option to madvise(), which
    requests that the covered memory not be included in coredumps. It makes
    sense to use this to prevent cases where application crashes could
    result in secrets being persisted to disk or included in dumps that are
    uploaded to remote servers for analysis. I've avoided making this fatal
    since there's a chance this code could be built on systems that have
    MADV_DONTDUMP but run on systems that don't.
    e6822428
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