1 files changed, 3 insertions, 0 deletions

diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c
index df4d84c9020d..4e81f2766923 100644
--- a/net/sunrpc/pmap_clnt.c
+++ b/net/sunrpc/pmap_clnt.c
@@ -53,6 +53,9 @@ rpc_getport(struct rpc_task *task, struct rpc_clnt *clnt)
                         task->tk_pid, clnt->cl_server,
                         map->pm_prog, map->pm_vers, map->pm_prot);
 
+        /* Autobind on cloned rpc clients is discouraged */
+        BUG_ON(clnt->cl_parent != clnt);
+
         spin_lock(&pmap_lock);
         if (map->pm_binding) {
                 rpc_sleep_on(&map->pm_bindwait, task, NULL, NULL);