From: Pavel Machek <pavel@ucw.cz>
To: Jeff Dike <jdike@karaya.com>
Cc: linux-kernel@vger.kernel.org, user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] Re: user-mode port 0.58-2.4.18-36
Date: Tue, 9 Jul 2002 05:16:18 +0200 [thread overview]
Message-ID: <20020709031618.GC113@elf.ucw.cz> (raw)
In-Reply-To: <200207062303.SAA02760@ccure.karaya.com>
Hi!
> > So... what prevents uml root from inserting rogue module (perhaps
> > using /dev/kmem) and escape the jail?
>
> That's prevented by the admin taking basic precautions and turning on 'jail',
> which refuses to run if module support is present and which also disables
> writing to /dev/kmem.
...and using CAP_SYS_RAWIO...
Pavel
--
Worst form of spam? Adding advertisment signatures ala sourceforge.net.
What goes next? Inserting advertisment *into* email?
next prev parent reply other threads:[~2002-07-09 13:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-05 22:50 user-mode port 0.58-2.4.18-36 Jeff Dike
2002-07-06 1:16 ` Pavel Machek
2002-07-06 23:03 ` [uml-user] " Jeff Dike
2002-07-09 3:16 ` Pavel Machek [this message]
2002-07-09 16:42 ` Jeff Dike
2002-07-09 16:55 ` Jeff Dike
2002-07-09 17:05 ` Pavel Machek
2002-07-09 18:47 ` Jeff Dike
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=20020709031618.GC113@elf.ucw.cz \
--to=pavel@ucw.cz \
--cc=jdike@karaya.com \
--cc=linux-kernel@vger.kernel.org \
--cc=user-mode-linux-user@lists.sourceforge.net \
/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