From 572eb5095865a1600980c3c3a12bf0533601eb72 Mon Sep 17 00:00:00 2001
From: Kevin Day <kevin@your.org>
Date: Fri, 28 Nov 2025 15:24:04 -0600
Subject: [PATCH] Fix LocalNetworkUtil.getCurrentEnvironmentLoopbackIp's
 fallback if NetworkInterface.getNetworkInterfaces() doesn't work due to
 sandboxing or permission issues.

---
 server/src/main/java/org/red5/server/util/LocalNetworkUtil.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/main/java/org/red5/server/util/LocalNetworkUtil.java b/server/src/main/java/org/red5/server/util/LocalNetworkUtil.java
index eccef37c1..bb7b54f30 100644
--- a/server/src/main/java/org/red5/server/util/LocalNetworkUtil.java
+++ b/server/src/main/java/org/red5/server/util/LocalNetworkUtil.java
@@ -43,7 +43,7 @@ public static String getCurrentEnvironmentLoopbackIp() {
         } catch (SocketException e) {
             e.printStackTrace();
         }
-        while (netInterfaces.hasMoreElements()) {
+        while (netInterfaces != null && netInterfaces.hasMoreElements()) {
             NetworkInterface ni = netInterfaces.nextElement();
             Enumeration<InetAddress> address = ni.getInetAddresses();
             while (address.hasMoreElements()) {