linux-kernel - Re: [PATCH 2/2] tpm: fix byte-order for the value read by tpm2_get_tpm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20160718190519.GM31463@intel.com>
Date:	Mon, 18 Jul 2016 22:05:19 +0300
From:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc:	Andrey Pronin <apronin@...omium.org>,
	Peter Huewe <peterhuewe@....de>,
	Marcel Selhorst <tpmdd@...horst.net>,
	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	groeck@...omium.org, smbarber@...omium.org, dianders@...omium.org
Subject: Re: [PATCH 2/2] tpm: fix byte-order for the value read by
 tpm2_get_tpm_pt

On Fri, Jul 15, 2016 at 01:39:28PM -0600, Jason Gunthorpe wrote:
> On Fri, Jul 15, 2016 at 12:31:43PM -0700, Andrey Pronin wrote:
> 
> > I even tried changing the code there to
> > 	__be32 vv = cmd.params.get_tpm_pt_out.value;
> > 	u32 ret = vv;
> > to make it clear what's going on. Still, no complaints from sparse.
> 
> Hum, I'm not an expert at sparse, but I expect a warning from it here?
> 
> Maybe Jarkko knows when he gets back?

I do run sparse regularly. If look at the commit log there are even
couple of recent bug fixes related to sparse errors.

/Jarkko