From cf20ea6e1a51adf725653f4fcde547bd87bf8670 Mon Sep 17 00:00:00 2001
From: Joao Eduardo Luis <joao.luis@inktank.com>
Date: Thu, 21 Feb 2013 17:44:39 +0000
Subject: [PATCH] mon: Monitor: check for an argument to 'quorum' before
 reading the array

Fixes: #4218

Signed-off-by: Joao Eduardo Luis <joao.luis@inktank.com>
---
 src/mon/Monitor.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mon/Monitor.cc b/src/mon/Monitor.cc
index d39491defaddc..716eeabe63a40 100644
--- a/src/mon/Monitor.cc
+++ b/src/mon/Monitor.cc
@@ -2616,6 +2616,11 @@ void Monitor::handle_command(MMonCommand *m)
       rs = "access denied";
       goto out;
     }
+    if (m->cmd.size() < 2) {
+      r = -EINVAL;
+      rs = "'quorum' requires an argument: 'exit' or 'enter'";
+      goto out;
+    }
     if (m->cmd[1] == "exit") {
       reset();
       start_election();
-- 
2.39.5