linux-kernel - Re: Detecting if you are running in a container

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]

Message-ID: <CAPXgP13npxh6UoEtXNiZ+Lhe_QxpO8-7r==WuUXDnNr+sHGXMw@mail.gmail.com>
Date:	Wed, 12 Oct 2011 18:59:07 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	Lennart Poettering <mzxreary@...inter.de>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Matt Helsley <matthltc@...ibm.com>,
	linux-kernel@...r.kernel.org, harald@...hat.com, david@...ar.dk,
	greg@...ah.com, Linux Containers <containers@...ts.osdl.org>,
	Linux Containers <lxc-devel@...ts.sourceforge.net>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	Daniel Lezcano <daniel.lezcano@...e.fr>,
	Paul Menage <paul@...lmenage.org>
Subject: Re: Detecting if you are running in a container

On Mon, Oct 10, 2011 at 23:41, Lennart Poettering <mzxreary@...inter.de> wrote:
> On Mon, 10.10.11 13:59, Eric W. Biederman (ebiederm@...ssion.com) wrote:

>> - udev.  All of the kernel interfaces for udev should be supported in
>>   current kernels.  However I believe udev is useless because container
>>   start drops CAP_MKNOD so we can't do evil things.  So I would
>>   recommend basing the startup of udev on presence of CAP_MKNOD.
>
> Using CAP_MKNOD as test here is indeed a good idea. I'll make sure udev
> in a systemd world makes use of that.

Done.

http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=9371e6f3e04b03692c23e392fdf005a08ccf1edb

Thanks,
Kay
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/