Re: [RFC v3] crypto: ccree - protect against short scatterlists

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On Mon, Jan 27, 2020 at 04:22:53PM +0100, Geert Uytterhoeven wrote:
> Hi Gilad,
> 
> On Mon, Jan 27, 2020 at 4:08 PM Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> wrote:
> > Deal gracefully with the event of being handed a scatterlist
> > which is shorter than expected.
> >
> > This mitigates a crash in some cases due to
> > attempt to map empty (but not NULL) scatterlists with none
> > zero lengths.
> >
> > Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx>
> > Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> 
> Thank you, boots fine on Salvator-XS with R-Car H3ES2.0, and
> CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y.
> 
> Tested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> 
> Gr{oetje,eeting}s,
> 

Note that you need to *unset* CONFIG_CRYPTO_MANAGER_DISABLE_TESTS to enable the
self-tests.

So to run the full tests, the following is needed:

# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y

- Eric



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