linux-kernel - Re: kmemleak splat on copy

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: <20170209013732.GL24047@wotan.suse.de>
Date:   Thu, 9 Feb 2017 02:37:32 +0100
From:   "Luis R. Rodriguez" <mcgrof@...nel.org>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     "Luis R. Rodriguez" <mcgrof@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andy Lutomirski <luto@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Mateusz Guzik <mguzik@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: kmemleak splat on copy_process()

On Tue, Feb 07, 2017 at 09:03:43AM +0100, Michal Hocko wrote:
> On Tue 07-02-17 02:37:02, Luis R. Rodriguez wrote:
> > > From a quick check I do not see any leak there either.
> > 
> > Then in that case what about:
> 
> This just disables the kmemleak altogether which doesn't sound like a
> good idea to me.

Only for this case, but if that is also not desirable let us debug further.
That or I think we could perhaps massage code to make it clearer to kmemleak
things are good.

  Luis