From 47cc6288c4802723bd979f48e4a62e145db86071 Mon Sep 17 00:00:00 2001
From: Luiss <luiss@mind.cc>
Date: Tue, 7 Apr 2020 10:03:22 +0200
Subject: [PATCH] Fix for MD5 leak bug, issue #7195

---
 cores/esp8266/MD5Builder.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cores/esp8266/MD5Builder.cpp b/cores/esp8266/MD5Builder.cpp
index b32693ed73..04af4e841a 100644
--- a/cores/esp8266/MD5Builder.cpp
+++ b/cores/esp8266/MD5Builder.cpp
@@ -55,6 +55,7 @@ bool MD5Builder::addStream(Stream & stream, const size_t maxLen){
         // read data and check if we got something
         int numBytesRead = stream.readBytes(buf, readBytes);
         if(numBytesRead< 1) {
+            free(buf); // release the buffer
             return false;
         }