From: "Serge E. Hallyn" <serge@hallyn.com>
To: "Serge E. Hallyn" <serge@hallyn.com>
Cc: LSM <linux-security-module@vger.kernel.org>,
Andrew Morton <akpm@osdl.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>,
xemul@parallels.com, dhowells@redhat.com
Subject: [PATCH 3/9] allow sethostname in a container
Date: Thu, 17 Feb 2011 15:03:16 +0000 [thread overview]
Message-ID: <20110217150316.GC26395@mail.hallyn.com> (raw)
In-Reply-To: <20110217150224.GA26334@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 18da702..7a1bbad 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1177,7 +1177,7 @@ 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:[~2011-02-17 15:02 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-17 15:02 userns: targeted capabilities v5 Serge E. Hallyn
2011-02-17 15:02 ` [PATCH 1/9] Add a user_namespace as creator/owner of uts_namespace Serge E. Hallyn
2011-02-18 3:31 ` Eric W. Biederman
2011-02-18 16:57 ` Daniel Lezcano
2011-02-18 23:59 ` Andrew Morton
2011-02-17 15:03 ` [PATCH 2/9] security: Make capabilities relative to the user namespace Serge E. Hallyn
2011-02-18 3:46 ` Eric W. Biederman
2011-02-18 23:44 ` Daniel Lezcano
2011-02-18 23:59 ` Andrew Morton
2011-02-17 15:03 ` Serge E. Hallyn [this message]
2011-02-18 3:05 ` [PATCH 3/9] allow sethostname in a container Eric W. Biederman
2011-02-18 23:46 ` Daniel Lezcano
2011-02-17 15:03 ` [PATCH 4/9] allow killing tasks in your own or child userns Serge E. Hallyn
2011-02-18 3:00 ` Eric W. Biederman
2011-02-18 23:59 ` Andrew Morton
2011-02-24 0:48 ` Serge E. Hallyn
2011-02-24 0:54 ` Andrew Morton
2011-02-19 10:55 ` Daniel Lezcano
2011-02-17 15:03 ` [PATCH 5/9] Allow ptrace from non-init user namespaces Serge E. Hallyn
2011-02-18 2:59 ` Eric W. Biederman
2011-02-18 4:36 ` Serge E. Hallyn
2011-02-24 0:49 ` [PATCH] userns: ptrace: incorporate feedback from Eric Serge E. Hallyn
2011-02-24 0:56 ` Andrew Morton
2011-02-24 3:15 ` Serge E. Hallyn
2011-02-18 23:59 ` [PATCH 5/9] Allow ptrace from non-init user namespaces Andrew Morton
2011-02-24 0:43 ` Serge E. Hallyn
2011-02-19 17:49 ` Daniel Lezcano
2011-02-17 15:03 ` [PATCH 6/9] user namespaces: convert all capable checks in kernel/sys.c Serge E. Hallyn
2011-02-18 1:57 ` Eric W. Biederman
2011-02-18 23:59 ` Andrew Morton
2011-02-19 0:01 ` Andrew Morton
2011-02-19 17:52 ` Daniel Lezcano
2011-02-17 15:03 ` [PATCH 7/9] add a user namespace owner of ipc ns Serge E. Hallyn
2011-02-18 3:19 ` Eric W. Biederman
2011-02-18 23:59 ` Andrew Morton
2011-02-19 17:57 ` Daniel Lezcano
2011-02-17 15:03 ` [PATCH 8/9] user namespaces: convert several capable() calls Serge E. Hallyn
2011-02-18 1:51 ` Eric W. Biederman
2011-02-19 19:07 ` Daniel Lezcano
2011-02-17 15:04 ` [PATCH 9/9] userns: check user namespace for task->file uid equivalence checks Serge E. Hallyn
2011-02-18 1:29 ` Eric W. Biederman
2011-02-18 23:59 ` Andrew Morton
2011-02-24 3:24 ` Serge E. Hallyn
2011-02-24 5:08 ` Andrew Morton
2011-02-19 19:22 ` Daniel Lezcano
2011-02-18 0:21 ` userns: targeted capabilities v5 Andrew Morton
2011-02-18 3:53 ` Eric W. Biederman
2011-02-18 4:28 ` Serge E. Hallyn
2011-02-23 11:40 ` [PATCH 2/9] security: Make capabilities relative to the user namespace David Howells
2011-02-23 12:01 ` David Howells
2011-02-23 13:43 ` Serge E. Hallyn
2011-02-23 12:05 ` User namespaces and keys David Howells
2011-02-23 13:58 ` Serge E. Hallyn
2011-02-23 14:46 ` Eric W. Biederman
2011-02-23 15:06 ` David Howells
2011-02-23 15:45 ` Eric W. Biederman
2011-02-23 15:53 ` Serge E. Hallyn
2011-02-23 19:24 ` Casey Schaufler
2011-02-23 20:55 ` Eric W. Biederman
2011-02-23 21:37 ` Casey Schaufler
2011-02-24 6:56 ` Eric W. Biederman
2011-02-23 16:59 ` [PATCH 2/9] security: Make capabilities relative to the user namespace David Howells
2011-02-23 17:05 ` [PATCH 5/9] Allow ptrace from non-init user namespaces David Howells
2011-02-23 17:11 ` David Howells
2011-02-23 17:16 ` [PATCH 1/9] Add a user_namespace as creator/owner of uts_namespace David Howells
2011-02-23 21:21 ` Eric W. Biederman
2011-02-23 23:19 ` David Howells
2011-02-23 23:54 ` Eric W. Biederman
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