From 62677de0bfe4bbc5f21fe3bbabe3501c13a7d86f Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Tue, 14 Jun 2022 00:02:10 -0500
Subject: [PATCH] SSH2: fix possibly undefined variable error

---
 phpseclib/Net/SSH2.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index 2a4ebe45..b47cfe5c 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -3533,7 +3533,11 @@ class Net_SSH2
 
         if (!is_resource($this->fsock) || feof($this->fsock)) {
             $this->bitmap = 0;
-            user_error('Connection closed (by server) prematurely ' . $elapsed . 's');
+            $str = 'Connection closed (by server) prematurely';
+            if (isset($elapsed)) {
+                $str.= ' ' . $elapsed . 's';
+            }
+            user_error($str);
             return false;
         }