From: Cedric Le Goater <clg@fr.ibm.com>

small fix for unshare of ipc namespace

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Pavel Emelianov <xemul@openvz.org>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 kernel/fork.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN kernel/fork.c~ipc-namespace-core-unshare-fix kernel/fork.c
--- a/kernel/fork.c~ipc-namespace-core-unshare-fix
+++ a/kernel/fork.c
@@ -1577,7 +1577,8 @@ asmlinkage long sys_unshare(unsigned lon
 	/* Return -EINVAL for all unsupported flags */
 	err = -EINVAL;
 	if (unshare_flags & ~(CLONE_THREAD|CLONE_FS|CLONE_NEWNS|CLONE_SIGHAND|
-				CLONE_VM|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWUTS))
+				CLONE_VM|CLONE_FILES|CLONE_SYSVSEM|
+				CLONE_NEWUTS|CLONE_NEWIPC))
 		goto bad_unshare_out;
 
 	if ((err = unshare_thread(unshare_flags)))
_