linux-kernel - Re: [GIT PULL] user namespace enhancements for Linux 3.5-rc1

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: <CAFLxGvzZeNxQSHQRCzYiT+OkFO1fooGfANPMYs-sSB-eQtCcpA@mail.gmail.com>
Date:	Sun, 27 May 2012 21:07:07 +0200
From:	richard -rw- weinberger <richard.weinberger@...il.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, "Serge E. Hallyn" <serge@...lyn.com>,
	Linux Containers <containers@...ts.linux-foundation.org>
Subject: Re: [GIT PULL] user namespace enhancements for Linux 3.5-rc1

On Tue, May 22, 2012 at 8:48 PM, Eric W. Biederman
<ebiederm@...ssion.com> wrote:
> - Capabilities are localized to the current user namespace making it
>  safe to give the initial user in a user namespace all capabilities.

Today I've tried your patch set, but it looks like a root-user in a
Linux container is still able to use /proc/sysrq-trigger.
Am I misunderstanding user namespaces or is there still something missing?

-- 
Thanks,
//richard
--
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/