Re: [PATCH 2/6] crypto: ctr - avoid VLA use

[Herbert Xu]

On Sat, Apr 07, 2018 at 08:38:19PM +0200, Salvatore Mesoraca wrote:
>
> @@ -206,6 +207,14 @@ static struct crypto_instance *crypto_ctr_alloc(struct rtattr **tb)
>  	if (alg->cra_blocksize < 4)
>  		goto out_put_alg;
>  
> +	/* Block size must be <= MAX_BLOCKSIZE. */
> +	if (alg->cra_blocksize > MAX_BLOCKSIZE)
> +		goto out_put_alg;
> +
> +	/* Alignmask must be <= MAX_ALIGNMASK. */
> +	if (alg->cra_alignmask > MAX_ALIGNMASK)
> +		goto out_put_alg;
> +

Since you're also adding a check to cipher algorithms in general,
none of these individual checks are needed anymore.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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