From ea32c97b82cd532aca6cbc538f821643a33daed9 Mon Sep 17 00:00:00 2001
From: Blaz Kristan <blaz@kristan-sp.si>
Date: Thu, 11 Jan 2024 20:24:59 +0100
Subject: [PATCH] Fix for #3672

---
 wled00/udp.cpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/wled00/udp.cpp b/wled00/udp.cpp
index c8bd0cd9e..65c35882b 100644
--- a/wled00/udp.cpp
+++ b/wled00/udp.cpp
@@ -612,13 +612,13 @@ void handleNotifications()
     if (realtimeOverride && !(realtimeMode && useMainSegmentOnly)) return;
 
     uint16_t totalLen = strip.getLengthTotal();
-    if (udpIn[0] == 1) //warls
+    if (udpIn[0] == 1 && packetSize > 5) //warls
     {
       for (size_t i = 2; i < packetSize -3; i += 4)
       {
         setRealtimePixel(udpIn[i], udpIn[i+1], udpIn[i+2], udpIn[i+3], 0);
       }
-    } else if (udpIn[0] == 2) //drgb
+    } else if (udpIn[0] == 2 && packetSize > 4) //drgb
     {
       uint16_t id = 0;
       for (size_t i = 2; i < packetSize -2; i += 3)
@@ -627,7 +627,7 @@ void handleNotifications()
 
         id++; if (id >= totalLen) break;
       }
-    } else if (udpIn[0] == 3) //drgbw
+    } else if (udpIn[0] == 3 && packetSize > 6) //drgbw
     {
       uint16_t id = 0;
       for (size_t i = 2; i < packetSize -3; i += 4)
@@ -636,7 +636,7 @@ void handleNotifications()
 
         id++; if (id >= totalLen) break;
       }
-    } else if (udpIn[0] == 4) //dnrgb
+    } else if (udpIn[0] == 4 && packetSize > 7) //dnrgb
     {
       uint16_t id = ((udpIn[3] << 0) & 0xFF) + ((udpIn[2] << 8) & 0xFF00);
       for (size_t i = 4; i < packetSize -2; i += 3)
@@ -645,7 +645,7 @@ void handleNotifications()
         setRealtimePixel(id, udpIn[i], udpIn[i+1], udpIn[i+2], 0);
         id++;
       }
-    } else if (udpIn[0] == 5) //dnrgbw
+    } else if (udpIn[0] == 5 && packetSize > 8) //dnrgbw
     {
       uint16_t id = ((udpIn[3] << 0) & 0xFF) + ((udpIn[2] << 8) & 0xFF00);
       for (size_t i = 4; i < packetSize -2; i += 4)