1 files changed, 6 insertions, 0 deletions

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index f1dd4b076210..d6504338e284 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -6421,12 +6421,18 @@ static void cgroupns_put(struct ns_common *ns)
         put_cgroup_ns(to_cg_ns(ns));
 }
 
+static struct user_namespace *cgroupns_owner(struct ns_common *ns)
+{
+        return to_cg_ns(ns)->user_ns;
+}
+
 const struct proc_ns_operations cgroupns_operations = {
         .name           = "cgroup",
         .type           = CLONE_NEWCGROUP,
         .get            = cgroupns_get,
         .put            = cgroupns_put,
         .install        = cgroupns_install,
+        .owner          = cgroupns_owner,
 };
 
 static __init int cgroup_namespaces_init(void)