Messages in this thread | | | From | Kees Cook <> | Date | Thu, 12 Jul 2018 23:16:28 -0700 | Subject | Re: [PATCH v4 11/14] treewide: Prepare to remove VLA usage for AHASH_REQUEST_ON_STACK |
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On Thu, Jul 12, 2018 at 5:40 PM, Herbert Xu <herbert@gondor.apana.org.au> wrote: > On Thu, Jul 12, 2018 at 06:02:26PM +0200, Arnd Bergmann wrote: >> >> Looking through some of the drivers, I found this interesting one: > > As I said before these patches are fundamentally broken. Users > of AHASH_REQUEST_ON_STACK can only use sync algorithm providers > and therefore drivers are irrelevant.
I've also now gone to look at the few users of AHASH_REQUEST_ON_STACK, and it seems like they come in two flavors:
- ones that can be trivially converts to shash (hibernate) - things that use scatter/gather
Is this correct? It seems like you did the bulk of AHASH_REQUEST_ON_STACK conversions in 2016. Can shash grow an sg interface?
-Kees
-- Kees Cook Pixel Security
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