[dpdk-dev] [PATCH] ipsec: fix unchecked return value

[Ananyev, Konstantin]

> Explicitly check return value in add_specific()
> CID 357760 (#2 of 2): Negative array index write (NEGATIVE_RETURNS)
> 8. negative_returns: Using variable ret as an index to array sad->cnt_arr
> 
> Fixes: b2ee26926775 ("ipsec: add SAD add/delete/lookup implementation")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin at intel.com>
> ---
>  lib/librte_ipsec/ipsec_sad.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/lib/librte_ipsec/ipsec_sad.c b/lib/librte_ipsec/ipsec_sad.c
> index 6c95240..3f9533c 100644
> --- a/lib/librte_ipsec/ipsec_sad.c
> +++ b/lib/librte_ipsec/ipsec_sad.c
> @@ -104,6 +104,8 @@ add_specific(struct rte_ipsec_sad *sad, const void *key,
>  	ret = rte_hash_lookup_with_hash(sad->hash[RTE_IPSEC_SAD_SPI_ONLY], key,
>  		rte_hash_crc(key, sad->keysize[RTE_IPSEC_SAD_SPI_ONLY],
>  		sad->init_val));
> +	if (ret < 0)
> +		return ret;
>  	if (key_type == RTE_IPSEC_SAD_SPI_DIP)
>  		sad->cnt_arr[ret].cnt_dip += notexist;
>  	else
> --

Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>

> 2.7.4