Re: [PATCH v11 1/2] crypto: AF_ALG: add AEAD support

[Herbert Xu]

On Wed, Jan 21, 2015 at 02:19:17AM +0100, Stephan Mueller wrote:
>
> +static void aead_data_wakeup(struct sock *sk)
> +{
> +	struct alg_sock *ask = alg_sk(sk);
> +	struct aead_ctx *ctx = ask->private;
> +	struct socket_wq *wq;
> +
> +	if (ctx->more)
> +		return;

You should also check for ctx->used here.  This can be called after
a zero-sized write.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/