From 41d271d9721f93ab8495b164188b556652d072d9 Mon Sep 17 00:00:00 2001
From: Luigi Rodorigo <lrodorigo@users.noreply.github.com>
Date: Thu, 9 Apr 2020 19:36:57 +0200
Subject: [PATCH] Fix for MD5 leak bug, issue #7195 (#7197)

Co-authored-by: Luiss <luiss@mind.cc>
Co-authored-by: david gauchard <gauchard@laas.fr>
Co-authored-by: Develo <deveyes@gmail.com>
Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>
---
 cores/esp8266/MD5Builder.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cores/esp8266/MD5Builder.cpp b/cores/esp8266/MD5Builder.cpp
index b32693ed7..04af4e841 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;
         }