From 4dc79b96ed37ab7a2a59938af2c678678bbec7df Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@php.net>
Date: Tue, 14 Jul 2015 19:05:52 -0500
Subject: [PATCH] SSH2: limit the size of data that expect() looks at

---
 phpseclib/Net/SSH2.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index cb2ca255..48772f3f 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -2670,7 +2670,7 @@ class Net_SSH2
         $match = $expect;
         while (true) {
             if ($mode == NET_SSH2_READ_REGEX) {
-                preg_match($expect, $this->interactiveBuffer, $matches);
+                preg_match($expect, substr($this->interactiveBuffer, -1024), $matches);
                 $match = isset($matches[0]) ? $matches[0] : '';
             }
             $pos = strlen($match) ? strpos($this->interactiveBuffer, $match) : false;