linux-kernel - Re: [PATCH v2] docs: namespace: Tweak and reword resource control doc

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Message-ID: <CAL1p7m6VGRDBrt89_5zqXzFgfZqm3mjmwH5WEn270Rwb49H7Dw@mail.gmail.com>
Date: Mon, 21 Apr 2025 12:14:27 -0400
From: Joel Savitz <jsavitz@...hat.com>
To: Bagas Sanjaya <bagasdotme@...il.com>
Cc: linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org
Subject: Re: [PATCH v2] docs: namespace: Tweak and reword resource control doc

On Sat, Apr 19, 2025 at 10:34 PM Bagas Sanjaya <bagasdotme@...il.com> wrote:
>
> On Sat, Apr 19, 2025 at 11:04:28AM -0400, Joel Savitz wrote:
> > -There are a lot of kinds of objects in the kernel that don't have
> > -individual limits or that have limits that are ineffective when a set
> > -of processes is allowed to switch user ids.  With user namespaces
> > -enabled in a kernel for people who don't trust their users or their
> > -users programs to play nice this problems becomes more acute.
> > +The kernel contains many kinds of objects that either don't have
> > +individual limits or that have limits which are ineffective when
> > +a set of processes is allowed to switch their UID. On a system
> > +where there admins don't trust their users or their users' programs,
> > +user namespaces expose the system to potential misuse of resources.
>
> Do you mean "when there are admins who don't trust ..." or "where admins don't
> trust ..."?

I meant to write "the admins", my bad.

>
> Confused...
>
> --
> An old man doll... just what I always wanted! - Clara