From 46aa7d091fbfaf9d18a46d821dbabf3b4f34119d Mon Sep 17 00:00:00 2001
From: cjihrig <cjihrig@gmail.com>
Date: Thu, 5 Dec 2019 10:21:16 -0500
Subject: src: free preopen memory in WASI::New()

PR-URL: https://github.com/nodejs/node/pull/30809
Refs: https://github.com/nodejs/node/issues/30257
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
---
 src/node_wasi.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/node_wasi.cc b/src/node_wasi.cc
index b3b266f5cf..e9bcb42ad6 100644
--- a/src/node_wasi.cc
+++ b/src/node_wasi.cc
@@ -163,6 +163,15 @@ void WASI::New(const FunctionCallbackInfo<Value>& args) {
       free(options.envp[i]);
     delete[] options.envp;
   }
+
+  if (options.preopens != nullptr) {
+    for (uint32_t i = 0; i < options.preopenc; i++) {
+      free(options.preopens[i].mapped_path);
+      free(options.preopens[i].real_path);
+    }
+
+    delete[] options.preopens;
+  }
 }
 
 
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