From c3d4edaf5e69b32c439dd7651c1e449f565c28eb Mon Sep 17 00:00:00 2001
From: Tony Murray <murraytony@gmail.com>
Date: Thu, 16 Nov 2023 11:43:22 -0600
Subject: [PATCH] Prevent non-unicode characters in ifAlias (#15585)

non-unicode characters will show up oddly, but at least they won't cause an error.
---
 includes/polling/ports.inc.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/includes/polling/ports.inc.php b/includes/polling/ports.inc.php
index e5ae184e20..91fb969366 100644
--- a/includes/polling/ports.inc.php
+++ b/includes/polling/ports.inc.php
@@ -678,6 +678,7 @@ foreach ($ports as $port) {
                 } else {
                     $current_oid = \LibreNMS\Util\StringHelpers::inferEncoding($this_port['ifAlias']);
                 }
+                $current_oid = utf8_encode($current_oid); // prevent invalid non-utf8 characters
             }
             if ($oid == 'ifSpeed') {
                 $ifSpeed_override = DeviceCache::getPrimary()->getAttrib('ifSpeed:' . $port['ifName']);