From 2ef1c3670b5d6c7b0cc894e83347f20619631b11 Mon Sep 17 00:00:00 2001
From: Jellyfrog <Jellyfrog@users.noreply.github.com>
Date: Sun, 14 Aug 2022 16:14:12 +0200
Subject: [PATCH] Fix error when ldap_search returns false (#14199)

---
 LibreNMS/Authentication/ActiveDirectoryAuthorizer.php | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/LibreNMS/Authentication/ActiveDirectoryAuthorizer.php b/LibreNMS/Authentication/ActiveDirectoryAuthorizer.php
index 35433b7cf0..a3f897af74 100644
--- a/LibreNMS/Authentication/ActiveDirectoryAuthorizer.php
+++ b/LibreNMS/Authentication/ActiveDirectoryAuthorizer.php
@@ -158,10 +158,13 @@ class ActiveDirectoryAuthorizer extends AuthorizerBase
             $this->userFilter($username),
             $attributes
         );
-        $entries = ldap_get_entries($connection, $search);
 
-        if ($entries['count']) {
-            return $this->getUseridFromSid($this->sidFromLdap($entries[0]['objectsid'][0]));
+        if ($search !== false) {
+            $entries = ldap_get_entries($connection, $search);
+
+            if ($entries !== false && $entries['count']) {
+                return $this->getUseridFromSid($this->sidFromLdap($entries[0]['objectsid'][0]));
+            }
         }
 
         return -1;