From d262f642195412de2d6ffa3e97b1bec3fe6541c5 Mon Sep 17 00:00:00 2001
From: Francis Tsui <ftsui@google.com>
Date: Thu, 11 Dec 2025 13:20:54 -0800
Subject: [PATCH] Fix issue with Wifi lan upgarde when
 EnableWifiLanAddressCandidates flag is not enabled.

PiperOrigin-RevId: 843349061
---
 internal/platform/implementation/windows/wifi_lan_medium.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/internal/platform/implementation/windows/wifi_lan_medium.cc b/internal/platform/implementation/windows/wifi_lan_medium.cc
index 94bacff4..39b084ed 100644
--- a/internal/platform/implementation/windows/wifi_lan_medium.cc
+++ b/internal/platform/implementation/windows/wifi_lan_medium.cc
@@ -785,7 +785,10 @@ std::vector<ServiceAddress> WifiLanMedium::GetUpgradeAddressCandidates(
                         ipv4_addresses.end());
     return ip_addresses;
   }
-  return { ip_addresses.back() };
+  if (!ipv4_addresses.empty()) {
+    return {ipv4_addresses.back()};
+  }
+  return {};
 }
 
 }  // namespace nearby::windows