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

Herbert Xu
2022-10-21T11:40:09Z

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@redhat.com>
> Signed-off-by: Nathan Huckleberry <nhuck@google.com>
> ---
> arch/x86/crypto/polyval-clmulni_glue.c | 19 ++++++++++++++-----
> 1 file changed, 14 insertions(+), 5 deletions(-)

Patch applied. Thanks.
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
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