Re: [PATCH v5] tpm: Check size of response before accessing data

From: Jarkko Sakkinen
Date: Mon Jan 16 2017 - 08:25:22 EST


On Mon, Jan 16, 2017 at 03:24:09PM +0200, Jarkko Sakkinen wrote:
> On Fri, Jan 13, 2017 at 09:36:34PM -0500, Stefan Berger wrote:
> > Make sure that we have not received less bytes than what is indicated
> > in the header of the TPM response. Also, check the number of bytes in
> > the response before accessing its data.
> >
> > Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxxxxxxx>
>
> There are some things that I want to comment after all but I can give
> now
>
> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
>
> I also noticed that this patch is not CC'd to linux-kernel.

Please go through the whole patch and remove arithmetic
from every possible place where you only end up with a
constant.

/Jarkko