From: Pavel Machek <pavel@ucw.cz>
To: Andrew Morton <akpm@osdl.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] exec: Only allow a threaded init to exec from the thread_group_leader
Date: Sun, 29 Jan 2006 16:24:53 +0100 [thread overview]
Message-ID: <20060129152451.GD1764@elf.ucw.cz> (raw)
In-Reply-To: <20060129024831.4474142f.akpm@osdl.org>
On Ne 29-01-06 02:48:31, Andrew Morton wrote:
> ebiederm@xmission.com (Eric W. Biederman) wrote:
> >
> > If process id namespaces become a reality init stops being
> > terribly special, and becomes something you may have several
> > of running at any one time. If one of those inits is compromised
> > by a hostile user I having the whole system go down so we can
> > avoid executing a cheap test sounds terribly wrong. That is
> > why I really care.
>
> Wouldn't it be better to do nothing until/unless there's some code in the
> kernel or init which actually needs the change?
It is common to do init=/bin/bash, and I guess people are doing it
with all kinds of wonderful apps....
Pavel
--
Thanks, Sharp!
next prev parent reply other threads:[~2006-01-29 15:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-29 6:18 Eric W. Biederman
2006-01-29 8:36 ` Andrew Morton
2006-01-29 10:25 ` Eric W. Biederman
2006-01-29 10:48 ` Andrew Morton
2006-01-29 15:24 ` Pavel Machek [this message]
2006-01-29 19:32 ` Andrew Morton
2006-01-29 21:32 ` Eric W. Biederman
2006-01-30 9:15 ` Jan Engelhardt
2006-01-30 20:41 ` Eric W. Biederman
[not found] <5AeeD-7xb-7@gated-at.bofh.it>
[not found] ` <5Aggm-1V6-3@gated-at.bofh.it>
[not found] ` <5AhYT-4uR-7@gated-at.bofh.it>
2006-01-29 13:36 ` Bodo Eggert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060129152451.GD1764@elf.ucw.cz \
--to=pavel@ucw.cz \
--cc=akpm@osdl.org \
--cc=ebiederm@xmission.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®