[Linaro-mm-sig] [RFC] ARM DMA mapping TODO, v1

[Valdis.Kletnieks at vt.edu]

On Wed, 27 Apr 2011 12:08:28 BST, Catalin Marinas said:

> The current version of the ARM ARM says "unpredictable". But this
> general definition of "unpredictable" does not allow it to deadlock
> (hardware) or have security implications. It is however allowed to
> corrupt data.

Not allowed to have security implications, but is allowed to corrupt data.

*boggle* :)

(The problem being, of course, that if the attacker is able to predict/control
what gets corrupted, it can easily end up leveraged into a security implication.)
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