From b86a8ec8c17377907f9dd3b8c0719c2be6b808c2 Mon Sep 17 00:00:00 2001
From: rudolfkoenig <rudolfkoenig@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Wed, 2 Jul 2025 14:15:56 +0000
Subject: [PATCH] 00_MQTT2_SERVER.pm: ignore zero-length password (Forum
 #141992)

git-svn-id: https://svn.fhem.de/fhem/trunk@30088 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/00_MQTT2_SERVER.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fhem/FHEM/00_MQTT2_SERVER.pm b/fhem/FHEM/00_MQTT2_SERVER.pm
index 461e0463d..ae69d68e9 100644
--- a/fhem/FHEM/00_MQTT2_SERVER.pm
+++ b/fhem/FHEM/00_MQTT2_SERVER.pm
@@ -699,6 +699,7 @@ sub
 MQTT2_SERVER_getStr($$$)
 {
   my ($hash, $in, $off) = @_;
+  return ("", "") if(length($in) < $off+2);
   my $l = unpack("n", substr($in, $off, 2));
   my $r = substr($in, $off+2, $l);
   $hash->{stringError} = 1 if(index($r, "\0") >= 0);