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 <michael.kerrisk@gmail.com>
Subject: [RFC 3/5] user namespaces: allow sethostname in a container
Date: Fri, 17 Dec 2010 15:26:25 +0000 [thread overview]
Message-ID: <20101217152625.GC11162@mail.hallyn.com> (raw)
In-Reply-To: <20101217152547.GB11162@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:[~2010-12-17 15:26 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-17 15:22 [RFC 0/5] user namespaces: start clamping down Serge E. Hallyn
2010-12-17 15:24 ` [RFC 1/5] user namespaces: Add a user_namespace as creator/owner of uts_namespace Serge E. Hallyn
2010-12-17 15:25 ` [RFC 2/5] user namespaces: make capabilities relative to the user namespace Serge E. Hallyn
2010-12-17 15:26 ` Serge E. Hallyn [this message]
2010-12-17 15:26 ` [RFC 4/5] user namespaces: allow killing tasks in your own or child userns Serge E. Hallyn
2010-12-17 15:27 ` [RFC 5/5] user namespaces: Allow ptrace from non-init user namespaces Serge E. Hallyn
2010-12-17 19:45 ` Eric W. Biederman
2010-12-17 20:04 ` Serge Hallyn
2011-01-01 4:47 ` Serge E. Hallyn
2010-12-17 19:31 ` [RFC 4/5] user namespaces: allow killing tasks in your own or child userns Eric W. Biederman
2010-12-17 20:09 ` Serge E. Hallyn
2010-12-17 20:17 ` Eric W. Biederman
2010-12-17 20:22 ` Serge E. Hallyn
2011-01-01 4:45 ` Serge E. Hallyn
2011-01-01 23:10 ` Eric W. Biederman
2011-01-02 14:39 ` Serge E. Hallyn
2010-12-17 15:56 ` [RFC 1/5] user namespaces: Add a user_namespace as creator/owner of uts_namespace Alexey Dobriyan
2010-12-17 16:00 ` Alexey Dobriyan
2010-12-17 16:17 ` Serge Hallyn
2010-12-17 16:12 ` Serge Hallyn
2010-12-17 17:31 ` Greg KH
2010-12-17 19:26 ` Eric W. Biederman
2010-12-17 19:58 ` Greg KH
2010-12-17 20:40 ` Eric W. Biederman
2010-12-17 23:15 ` Greg KH
2010-12-18 6:32 ` Eric W. Biederman
2010-12-18 17:56 ` Greg KH
2010-12-17 19:46 ` Serge Hallyn
2010-12-17 19:57 ` Greg KH
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