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From: Alexey Dobriyan <adobriyan@gmail.com>
To: ebiederm@xmission.com
Cc: alban.crequy@gmail.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [RFC][WIP] namespace.c: Allow some unprivileged proc mounts when not fully visible
Date: Wed, 4 Apr 2018 20:49:09 +0300	[thread overview]
Message-ID: <20180404174909.GB2540@avx2> (raw)

> The only option I have seen proposed that might qualify as something
> general purpose and simple is a new filesystem that is just the process
> directories of proc.

While "mount -t pid" and "mount -t sysctl" are decades overdue, I don't
think they cover everything.

IIRC some gcc versions read /proc/meminfo on every invocation. Now
imagine such program doesn't have a fallback if /proc/ doesn't exist
(how many thousands such programs are there?) So user is going to ask
for /proc with just /proc/meminfo only. At this point it is back to
nearly full /proc.

             reply	other threads:[~2018-04-04 17:49 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-04 17:49 Alexey Dobriyan [this message]
2018-04-04 23:59 ` [PATCH] [RFC][WIP] namespace.c: Allow some unprivileged proc mounts when not fully visible Eric W. Biederman
  -- strict thread matches above, loose matches on Subject: below --
2018-04-04 17:45 Alexey Dobriyan
2018-04-04 11:53 Alban Crequy
2018-04-04 11:53 ` Alban Crequy
     [not found] ` <20180404115311.725-1-alban-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2018-04-04 14:45   ` Eric W. Biederman
2018-04-04 14:45 ` Eric W. Biederman
2018-04-04 15:34   ` Aleksa Sarai
2018-04-04 18:42   ` Serge E. Hallyn
     [not found]     ` <20180404184250.GA9997-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2018-04-04 22:02       ` Eric W. Biederman
2018-04-04 22:02     ` Eric W. Biederman
2018-04-05 14:19   ` Christian Brauner
2018-04-13 22:41   ` Djalal Harouni
2018-04-16 14:16     ` Alexey Gladkov
     [not found]     ` <CAEiveUf5LWpvA-QMm3eYr9yFgUjwyQdkk-WVptze9m_EfbGMwg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-04-16 14:16       ` Alexey Gladkov
     [not found]   ` <87tvsrjai0.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-04-04 15:34     ` Aleksa Sarai
2018-04-04 18:42     ` Serge E. Hallyn
2018-04-05 14:19     ` Christian Brauner
2018-04-13 22:41     ` Djalal Harouni

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