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    SubjectRe: [Patch 2.6] dm-crypt: zero key before freeing it
    On Wed, 4 January 2006 12:28:59 -0800, Randy.Dunlap wrote:
    > On Wed, 4 Jan 2006, Stefan Rompf wrote:
    > > Am Mittwoch 04 Januar 2006 21:09 schrieb Arjan van de Ven:
    > >
    > > > since a memset right before a free is a very unusual code pattern in the
    > > > kernel it may well be worth putting a short comment around it to prevent
    > > > someone later removing it as "optimization"
    > >
    > > Valid objection, here is an update (and see, I'm running 2.6.15 now ;-)
    >
    > A reason "why" would be more helpful that a "what".

    "prevent information leak"

    This is still a "what", but at least not a "how".

    Jörn

    --
    Linux is more the core point of a concept that surrounds "open source"
    which, in turn, is based on a false concept. This concept is that
    people actually want to look at source code.
    -- Rob Enderle
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