linux-kernel - Re: [PATCH] prctl: Deprecate non PR_SET_MM

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]

Date:   Thu, 5 Apr 2018 00:26:10 +0300
From:   Cyrill Gorcunov <gorcunov@...il.com>
To:     Yang Shi <yang.shi@...ux.alibaba.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Andrey Vagin <avagin@...nvz.org>,
        Andrew Morton <akpm@...uxfoundation.org>,
        Pavel Emelyanov <xemul@...tuozzo.com>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Michal Hocko <mhocko@...nel.org>
Subject: Re: [PATCH] prctl: Deprecate non PR_SET_MM_MAP operations

On Wed, Apr 04, 2018 at 02:16:33PM -0700, Yang Shi wrote:
> On 4/4/18 11:55 AM, Cyrill Gorcunov wrote:
> > An ability to manipulate mm_struct fields was introduced in
> > sake of CRIU in first place. Later we provide more suitable
> > and safe operation PR_SET_MM_MAP where all fields to be modifed
> > are passed in one structure which allows us to make more detailed
> > verification.
> > 
> > -
> >   	if (arg5 || (arg4 && (opt != PR_SET_MM_AUXV &&
> 
> This PR_SET_MM_AUXV should be removed too? There is not callsite to
> prctl_set_auxv() anymore.

Yeah, good point. Will update.