From b890c51ff29081c81a40d4910071cfdd80c40ff5 Mon Sep 17 00:00:00 2001
From: theanarkh <theratliter@gmail.com>
Date: Sun, 6 Jul 2025 01:33:23 +0800
Subject: [PATCH] os: fix GetInterfaceAddresses memory lieaky
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PR-URL: https://github.com/nodejs/node/pull/58940
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
---
 src/node_os.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/node_os.cc b/src/node_os.cc
index 3fa8584787..f2b449ac0d 100644
--- a/src/node_os.cc
+++ b/src/node_os.cc
@@ -214,6 +214,9 @@ static void GetInterfaceAddresses(const FunctionCallbackInfo<Value>& args) {
     return;
   }
 
+  auto cleanup =
+      OnScopeLeave([&]() { uv_free_interface_addresses(interfaces, count); });
+
   Local<Value> no_scope_id = Integer::New(isolate, -1);
   LocalVector<Value> result(isolate);
   result.reserve(count * 7);
@@ -268,7 +271,6 @@ static void GetInterfaceAddresses(const FunctionCallbackInfo<Value>& args) {
     }
   }
 
-  uv_free_interface_addresses(interfaces, count);
   args.GetReturnValue().Set(Array::New(isolate, result.data(), result.size()));
 }