From 3496617f8f1961ea44bba86a3939f88e88280f49 Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Mon, 9 Jun 2025 19:58:44 +0000
Subject: [PATCH] Check return value of getinterfaces. Fixes #3032

---
 libnetutil/netutil.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libnetutil/netutil.cc b/libnetutil/netutil.cc
index 419d560c6..4d2824067 100644
--- a/libnetutil/netutil.cc
+++ b/libnetutil/netutil.cc
@@ -1459,6 +1459,9 @@ struct interface_info *getInterfaceByName(const char *iname, int af) {
 
   ifaces = getinterfaces(&numifaces, NULL, 0);
 
+  if (ifaces == NULL)
+    return NULL;
+
   for (ifnum = 0; ifnum < numifaces; ifnum++) {
     if ((strcmp(ifaces[ifnum].devfullname, iname) == 0 ||
         strcmp(ifaces[ifnum].devname, iname) == 0) &&