From: Serge E. Hallyn <serue@us.ibm.com>
Date: Wed, 3 Dec 2008 19:17:33 +0000 (-0600)
Subject: user namespaces: require cap_set{ug}id for CLONE_NEWUSER
X-Git-Tag: v2.6.29-rc1~588^2^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7657d90497f98426af17f0ac633a9b335bb7a8fb;p=pandora-kernel.git

user namespaces: require cap_set{ug}id for CLONE_NEWUSER

While ideally CLONE_NEWUSER will eventually require no
privilege, the required permission checks are currently
not there.  As a result, CLONE_NEWUSER has the same effect
as a setuid(0)+setgroups(1,"0").  While we already require
CAP_SYS_ADMIN, requiring CAP_SETUID and CAP_SETGID seems
appropriate.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: James Morris <jmorris@namei.org>
---

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