linux-kernel - Re: [PATCH 09/17] prmem: hardened usercopy

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Message-ID: <d1f3f3b3-80b5-c194-dae7-b192e43a9dd1@gmail.com>
Date:   Mon, 29 Oct 2018 20:24:43 +0200
From:   Igor Stoppa <igor.stoppa@...il.com>
To:     crecklin@...hat.com, Mimi Zohar <zohar@...ux.vnet.ibm.com>,
        Kees Cook <keescook@...omium.org>,
        Matthew Wilcox <willy@...radead.org>,
        Dave Chinner <david@...morbit.com>,
        James Morris <jmorris@...ei.org>,
        Michal Hocko <mhocko@...nel.org>,
        kernel-hardening@...ts.openwall.com,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org
Cc:     igor.stoppa@...wei.com, Dave Hansen <dave.hansen@...ux.intel.com>,
        Jonathan Corbet <corbet@....net>,
        Laura Abbott <labbott@...hat.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/17] prmem: hardened usercopy



On 29/10/2018 11:45, Chris von Recklinghausen wrote:

[...]

> Could you add code somewhere (lkdtm driver if possible) to demonstrate
> the issue and verify the code change?

Sure.

Eventually, I'd like to add test cases for each functionality.
I didn't do it right away for those parts which are either not 
immediately needed for the main functionality or I'm still not confident 
enough that they won't change radically.

--

igor