From: "Serge E. Hallyn" <serge@hallyn.com>
To: "Serge E. Hallyn" <serge@hallyn.com>
Cc: LSM <linux-security-module@vger.kernel.org>,
James Morris <jmorris@namei.org>,
Kees Cook <kees.cook@canonical.com>,
containers@lists.linux-foundation.org,
kernel list <linux-kernel@vger.kernel.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Michael Kerrisk <mtk.manpages@gmail.com>
Subject: [PATCH 3/7] allow sethostname in a container
Date: Mon, 10 Jan 2011 21:13:25 +0000 [thread overview]
Message-ID: <20110110211325.GC22564@mail.hallyn.com> (raw)
In-Reply-To: <20110110211135.GA22446@mail.hallyn.com>
Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com>
---
kernel/sys.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/sys.c b/kernel/sys.c
index 2745dcd..9b9b03b 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1171,7 +1171,7 @@ SYSCALL_DEFINE2(sethostname, char __user *, name, int, len)
int errno;
char tmp[__NEW_UTS_LEN];
- if (!capable(CAP_SYS_ADMIN))
+ if (!ns_capable(current->nsproxy->uts_ns->user_ns, CAP_SYS_ADMIN))
return -EPERM;
if (len < 0 || len > __NEW_UTS_LEN)
return -EINVAL;
--
1.7.0.4
next prev parent reply other threads:[~2011-01-10 21:12 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-10 21:11 userns: targeted capabilities v3 Serge E. Hallyn
2011-01-10 21:13 ` [PATCH 1/7] Add a user_namespace as creator/owner of uts_namespace Serge E. Hallyn
2011-01-10 21:13 ` [PATCH 2/7] security: Make capabilities relative to the user namespace Serge E. Hallyn
2011-01-10 21:13 ` Serge E. Hallyn [this message]
2011-01-10 21:13 ` [PATCH 4/7] allow killing tasks in your own or child userns Serge E. Hallyn
[not found] ` <20110110211334.GD22564-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2011-01-10 21:52 ` Bastian Blank
2011-01-10 21:52 ` Bastian Blank
2011-01-10 22:51 ` Serge Hallyn
2011-01-10 23:23 ` Bastian Blank
[not found] ` <20110110232335.GA27029-0IJIQSrh9RL9UF0aPl6fsj8Kkb2uy4ct@public.gmane.org>
2011-01-11 1:31 ` Serge E. Hallyn
2011-01-11 1:31 ` Serge E. Hallyn
[not found] ` <20110111013152.GA23860-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2011-01-14 14:50 ` Bastian Blank
2011-01-14 14:50 ` Bastian Blank
[not found] ` <20110114145001.GB20945-0IJIQSrh9RL9UF0aPl6fsj8Kkb2uy4ct@public.gmane.org>
2011-01-15 0:31 ` Serge E. Hallyn
2011-01-15 0:31 ` Serge E. Hallyn
[not found] ` <20110115003114.GA24569-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2011-01-15 11:30 ` Bastian Blank
2011-01-15 11:30 ` Bastian Blank
[not found] ` <20110115113025.GB18682-0IJIQSrh9RL9UF0aPl6fsj8Kkb2uy4ct@public.gmane.org>
2011-01-15 14:12 ` Serge E. Hallyn
2011-01-15 14:12 ` Serge E. Hallyn
2011-01-10 23:23 ` Bastian Blank
2011-01-11 4:22 ` Oren Laadan
2011-01-11 4:22 ` Oren Laadan
[not found] ` <4D2BDAF4.9040908-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2011-01-11 4:32 ` Serge E. Hallyn
2011-01-11 4:32 ` Serge E. Hallyn
[not found] ` <20110110215240.GA21351-0IJIQSrh9RL9UF0aPl6fsj8Kkb2uy4ct@public.gmane.org>
2011-01-10 22:51 ` Serge Hallyn
2011-01-10 21:13 ` [PATCH 5/7] Allow ptrace from non-init user namespaces Serge E. Hallyn
2011-01-10 21:14 ` [PATCH 6/7] user namespaces: convert all capable checks in kernel/sys.c Serge E. Hallyn
[not found] ` <20110110211406.GF22564-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2011-01-10 21:59 ` Bastian Blank
2011-01-10 21:59 ` Bastian Blank
[not found] ` <20110110215937.GB21351-0IJIQSrh9RL9UF0aPl6fsj8Kkb2uy4ct@public.gmane.org>
2011-01-10 22:56 ` Serge Hallyn
2011-01-11 5:27 ` Serge E. Hallyn
2011-01-10 22:56 ` Serge Hallyn
2011-01-11 5:27 ` Serge E. Hallyn
[not found] ` <20110111052759.GA24970-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2011-01-14 15:02 ` Bastian Blank
2011-01-14 15:02 ` Bastian Blank
[not found] ` <20110110211135.GA22446-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2011-01-10 21:13 ` [PATCH 1/7] Add a user_namespace as creator/owner of uts_namespace Serge E. Hallyn
2011-01-10 21:13 ` [PATCH 2/7] security: Make capabilities relative to the user namespace Serge E. Hallyn
2011-01-10 21:13 ` [PATCH 3/7] allow sethostname in a container Serge E. Hallyn
2011-01-10 21:13 ` [PATCH 4/7] allow killing tasks in your own or child userns Serge E. Hallyn
2011-01-10 21:13 ` [PATCH 5/7] Allow ptrace from non-init user namespaces Serge E. Hallyn
2011-01-10 21:14 ` [PATCH 6/7] user namespaces: convert all capable checks in kernel/sys.c Serge E. Hallyn
2011-01-10 21:14 ` [PATCH 7/7] user namespaces: convert several capable() calls Serge E. Hallyn
2011-01-10 21:14 ` Serge E. Hallyn
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