Re: [PATCH] crypto: caam - fix copy of next buffer for xcbc and cmac

From: Herbert Xu
Date: Thu Mar 28 2019 - 02:08:33 EST


On Fri, Mar 22, 2019 at 02:12:30PM +0200, Iuliana Prodan wrote:
> Fix a side effect of adding xcbc support, when the next_buffer is not
> copied.
> The issue occurs, when there is stored from previous state a blocksize
> buffer and received, a less than blocksize, from user. In this case, the
> nents for req->src is 0, and the next_buffer is not copied.
> An example is:
> {
> .tap = { 17, 15, 8 },
> .psize = 40,
> .np = 3,
> .ksize = 16,
> }
>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Fixes: 12b8567f6fa4 ("crypto: caam - add support for xcbc(aes)")
> Signed-off-by: Iuliana Prodan <iuliana.prodan@xxxxxxx>
> ---
> drivers/crypto/caam/caamhash.c | 13 ++++++-------
> 1 file changed, 6 insertions(+), 7 deletions(-)

Patch applied. Thanks.
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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