cgroupns: Add a limit on the number of cgroup namespaces

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/ucount.c b/kernel/ucount.c
index fbab75424da6..335cc5d2cdd7 100644
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -71,6 +71,7 @@ static struct ctl_table user_table[] = {
         UCOUNT_ENTRY("max_pid_namespaces"),
         UCOUNT_ENTRY("max_uts_namespaces"),
         UCOUNT_ENTRY("max_ipc_namespaces"),
+        UCOUNT_ENTRY("max_cgroup_namespaces"),
         { }
 };
 #endif /* CONFIG_SYSCTL */