From 9b2ad15cd3d7ab48957e5a189277f80ed5271e8c Mon Sep 17 00:00:00 2001
From: Willem Noort <willem@coblue.eu>
Date: Thu, 24 Mar 2016 13:52:19 +0100
Subject: [PATCH] Fix Integer overflow in BitcoinSerializer.BitcoinPacketHeader

---
 core/src/main/java/org/bitcoinj/core/BitcoinSerializer.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/main/java/org/bitcoinj/core/BitcoinSerializer.java b/core/src/main/java/org/bitcoinj/core/BitcoinSerializer.java
index 54c2a08c..5f3ea070 100644
--- a/core/src/main/java/org/bitcoinj/core/BitcoinSerializer.java
+++ b/core/src/main/java/org/bitcoinj/core/BitcoinSerializer.java
@@ -367,7 +367,7 @@ public class BitcoinSerializer extends MessageSerializer {
             size = (int) readUint32(header, cursor);
             cursor += 4;
 
-            if (size > Message.MAX_SIZE)
+            if (size > Message.MAX_SIZE || size < 0)
                 throw new ProtocolException("Message size too large: " + size);
 
             // Old clients don't send the checksum.