On Thu, Mar 15, 2018 at 11:24:23PM +0000, Winkler, Tomas wrote: > > > > On Sat, 2018-03-10 at 10:24 +0200, Tomas Winkler wrote: > > > + rlength = be32_to_cpu(tpm_cmd.header.out.length); > > > + if (rlength < offsetof(struct tpm_getrandom_out, rng_data) + > > > + recd) { > > > + total = -EFAULT; > > > + break; > > > + } > > > + memcpy(dest, tpm_cmd.params.getrandom_out.rng_data, > > recd); > > > > This rlength stuff can be handled with tpm_buf_length() as I do in my > > pendig-for-review patch set: > > > > https://patchwork.kernel.org/patch/10259331/ > > Right, as I wrote before not sure it's good to move and change the code more than necessary at the same time. > I would leave the tpm_buf_ changes after this series. Right, this is a valid point. I'll ack this as it is. Thanks for pointing this out. /Jarkko