RE: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs

[David Laight]

From: Andy Lutomirski
> Sent: 12 December 2016 20:53
> The driver put a constant buffer of all zeros on the stack and
> pointed a scatterlist entry at it in two places.  This doesn't work
> with virtual stacks.  Use a static 16-byte buffer of zeros instead.
...

I didn't think you could dma from static data either.

        David