From 58937dd489968f2850e2b883cc9695f9ac6be60b Mon Sep 17 00:00:00 2001
From: david gauchard <gauchard@laas.fr>
Date: Thu, 14 Dec 2017 07:38:44 +0100
Subject: [PATCH] check nullptr in ESP8266WebServer (#3958)

---
 libraries/ESP8266WebServer/src/Parsing.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libraries/ESP8266WebServer/src/Parsing.cpp b/libraries/ESP8266WebServer/src/Parsing.cpp
index 581439227..eae25de06 100644
--- a/libraries/ESP8266WebServer/src/Parsing.cpp
+++ b/libraries/ESP8266WebServer/src/Parsing.cpp
@@ -179,6 +179,8 @@ bool ESP8266WebServer::_parseRequest(WiFiClient& client) {
     if (!isForm){
       size_t plainLength;
       char* plainBuf = readBytesWithTimeout(client, contentLength, plainLength, HTTP_MAX_POST_WAIT);
+      if (!plainBuf)
+        return false;
       if (plainLength < contentLength) {
       	free(plainBuf);
       	return false;