From 1a3fb989a5d92575a05b6ac3627de554723709ac Mon Sep 17 00:00:00 2001
From: Martino Facchin <m.facchin@arduino.cc>
Date: Wed, 8 May 2024 17:25:48 +0200
Subject: [PATCH] Make sure iContentLength doesn't wrap around due to malformed
 packets

---
 src/HttpClient.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/HttpClient.cpp b/src/HttpClient.cpp
index c0f5c27..31909d9 100644
--- a/src/HttpClient.cpp
+++ b/src/HttpClient.cpp
@@ -819,7 +819,11 @@ int HttpClient::readHeader()
     case eReadingContentLength:
         if (isdigit(c))
         {
-            iContentLength = iContentLength*10 + (c - '0');
+            long _iContentLength = iContentLength*10 + (c - '0');
+            // Only apply if the value didn't wrap around
+            if (_iContentLength > iContentLength) {
+                iContentLength = _iContentLength;
+            }
         }
         else
         {