linux-kernel - Re: [PATCH crypto-next 11/23] wusb: Remove VLA usage of skcipher

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Date:   Thu, 20 Sep 2018 12:39:38 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Johan Hovold <johan@...nel.org>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        linux-usb@...r.kernel.org,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Eric Biggers <ebiggers@...gle.com>,
        linux-crypto <linux-crypto@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH crypto-next 11/23] wusb: Remove VLA usage of skcipher

On Tue, Sep 18, 2018 at 07:10:48PM -0700, Kees Cook wrote:
> In the quest to remove all stack VLA usage from the kernel[1], this
> replaces struct crypto_skcipher and SKCIPHER_REQUEST_ON_STACK() usage
> with struct crypto_sync_skcipher and SYNC_SKCIPHER_REQUEST_ON_STACK(),
> which uses a fixed stack size.
> 
> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
> 
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Felipe Balbi <felipe.balbi@...ux.intel.com>
> Cc: Johan Hovold <johan@...nel.org>
> Cc: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
> Cc: linux-usb@...r.kernel.org
> Signed-off-by: Kees Cook <keescook@...omium.org>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>