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>,
Bastian Blank <bastian@waldi.eu.org>
Subject: [PATCH 03/08] allow sethostname in a container
Date: Tue, 11 Jan 2011 06:44:20 +0000 [thread overview]
Message-ID: <20110111064420.GD27515@mail.hallyn.com> (raw)
In-Reply-To: <20110111064342.GA27515@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:[~2011-01-11 6:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-11 6:43 userns: targeted capabilities v4 Serge E. Hallyn
2011-01-11 6:43 ` [PATCH 01/08] Add a user_namespace as creator/owner of uts_namespace Serge E. Hallyn
2011-01-11 6:44 ` [PATCH 02/08] security: Make capabilities relative to the user namespace Serge E. Hallyn
2011-01-11 6:44 ` Serge E. Hallyn [this message]
2011-01-11 16:14 ` [PATCH 03/08] allow sethostname in a container Serge E. Hallyn
2011-02-04 15:56 ` Serge E. Hallyn
2011-01-11 6:44 ` [PATCH 04/08] allow killing tasks in your own or child userns Serge E. Hallyn
2011-01-11 6:44 ` [PATCH 05/08] Allow ptrace from non-init user namespaces Serge E. Hallyn
2011-01-14 14:46 ` Bastian Blank
2011-01-14 15:00 ` Bastian Blank
2011-01-15 0:35 ` Serge E. Hallyn
2011-01-11 6:44 ` [PATCH 06/08] user namespaces: convert all capable checks in kernel/sys.c Serge E. Hallyn
2011-01-11 6:45 ` [PATCH 07/08] user namespaces: convert several capable() calls Serge E. Hallyn
2011-01-11 6:45 ` [PATCH 08/08] userns: check user namespace for task->file uid equivalence checks Serge E. Hallyn
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