linux-kernel - Re: [kernel-hardening] Re: [PATCH 0/2] sysctl: allow CLONE

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Date:	Mon, 25 Jan 2016 21:27:58 -0500
From:	Daniel Micay <danielmicay@...il.com>
To:	kernel-hardening@...ts.openwall.com,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Andy Lutomirski <luto@...capital.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Richard Weinberger <richard@....at>,
	Robert Święcki <robert@...ecki.net>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	David Howells <dhowells@...hat.com>,
	Miklos Szeredi <mszeredi@...e.cz>,
	Kostya Serebryany <kcc@...gle.com>,
	Alexander Potapenko <glider@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [kernel-hardening] Re: [PATCH 0/2] sysctl: allow CLONE_NEWUSER
 to be disabled

> This feature is already implemented by two distros, and likely wanted
> by others. We cannot ignore that.

Date point: Arch Linux won't be enabling CONFIG_USERNS until there's a
way to disable unprivileged user namespaces. The kernel maintainers are
unwilling to carry long-term out-of-tree patches.

https://github.com/sandstorm-io/sandstorm/blob/d270755b1b55e5be6c96df2cce7c914f35f0d2a2/install.sh#L464-L474
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