From: Andrew Morton <akpm@osdl.org>

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 |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN kernel/fork.c~ipc-namespace-core-fix kernel/fork.c
--- a/kernel/fork.c~ipc-namespace-core-fix
+++ a/kernel/fork.c
@@ -1603,7 +1603,7 @@ asmlinkage long sys_unshare(unsigned lon
 	if ((err = unshare_ipcs(unshare_flags, &new_ipc)))
 		goto bad_unshare_cleanup_uts;
 
-	if (new_ns || new_uts) {
+	if (new_ns || new_uts || new_ipc) {
 		old_nsproxy = current->nsproxy;
 		new_nsproxy = dup_namespaces(old_nsproxy);
 		if (!new_nsproxy) {
_