Re: [PATCH v3] crypto: x86/polyval - Fix crashes when keys are not 16-byte aligned

[Eric Biggers]

On Tue, Oct 18, 2022 at 04:04:12PM -0700, Nathan Huckleberry wrote:
> crypto_tfm::__crt_ctx is not guaranteed to be 16-byte aligned on x86-64.
> This causes crashes due to movaps instructions in clmul_polyval_update.
> 
> Add logic to align polyval_tfm_ctx to 16 bytes.
> 
> Fixes: 34f7f6c30112 ("crypto: x86/polyval - Add PCLMULQDQ accelerated implementation of POLYVAL")
> Reported-by: Bruno Goncalves <bgoncalv@xxxxxxxxxx>
> Signed-off-by: Nathan Huckleberry <nhuck@xxxxxxxxxx>

Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx>

Please add 'Cc: stable@xxxxxxxxxxxxxxx' as well.  (Herbert can do it when
applying this patch, if you don't happen to send another version.)

- Eric