1 files changed, 4 insertions, 0 deletions

diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index fdbd0cdf271a..c1c3dc1c6023 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -115,6 +115,7 @@ static struct pid_namespace *create_pid_namespace(struct user_namespace *user_ns
         ns->level = level;
         ns->parent = get_pid_ns(parent_pid_ns);
         ns->user_ns = get_user_ns(user_ns);
+        ns->nr_hashed = PIDNS_HASH_ADDING;
         INIT_WORK(&ns->proc_work, proc_cleanup_work);
 
         set_bit(0, ns->pidmap[0].page);
@@ -181,6 +182,9 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns)
         int rc;
         struct task_struct *task, *me = current;
 
+        /* Don't allow any more processes into the pid namespace */
+        disable_pid_allocation(pid_ns);
+
         /* Ignore SIGCHLD causing any terminated children to autoreap */
         spin_lock_irq(&me->sighand->siglock);
         me->sighand->action[SIGCHLD - 1].sa.sa_handler = SIG_IGN;