Re: [dpdk-dev] [PATCH v2] aesni_mb: fix out-of-bounds access

["De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>]

Hi Fan,

> -----Original Message-----
> From: Zhang, Roy Fan
> Sent: Monday, June 17, 2019 3:31 PM
> To: dev@dpdk.org
> Cc: akhil.goyal@nxp.com; De Lara Guarch, Pablo
> <pablo.de.lara.guarch@intel.com>; Zhang, Roy Fan
> <roy.fan.zhang@intel.com>
> Subject: [PATCH v2] aesni_mb: fix out-of-bounds access
> 
> This patch fixes the out-of-bounds coverity issue by adding missed
> algorithms to the array.
> 
> Coverity issue: 337683
> 
> Fixes: c68d7aa354f6 ("crypto/aesni_mb: use architecture independent
> macros")
> 
> Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
> ---
>  drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h | 17
> ++++++++++++++++-
>  1 file changed, 16 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
> b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
> index 4d439360f..dda78d989 100644
> --- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
> +++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
> @@ -41,6 +41,14 @@ static const unsigned auth_blocksize[] = {
>  		[SHA_512]	= 128,
>  		[AES_XCBC]	= 16,
>  		[AES_CCM]	= 16,
> +		[AES_CMAC]	= 16,
> +		[AES_GMAC]	= 16,
> +		[AES_GCM]	= 16,

As Akhil has pointed out, there is a compilation error,
because there is no AES_GCM in JOB_HASH_ALG list.
I think instead what's missing is NULL_HASH, which block size should be 0.

Thanks,
Pablo