PaperMC/CraftBukkit-Patches/0097-Catch-stalling-on-corrupted-map-data-NBT-arrays.patch

From 4936e7a8d5a37a5dad22e681ce538a90e9d53685 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Mon, 20 Jan 2014 13:44:07 +1100
Subject: [PATCH] Catch stalling on corrupted map data / NBT arrays.


diff --git a/src/main/java/net/minecraft/server/NBTTagByteArray.java b/src/main/java/net/minecraft/server/NBTTagByteArray.java
index 916d935..c2e81cb 100644
--- a/src/main/java/net/minecraft/server/NBTTagByteArray.java
+++ b/src/main/java/net/minecraft/server/NBTTagByteArray.java
@@ -22,6 +22,7 @@ public class NBTTagByteArray extends NBTBase {
 
     void load(DataInput datainput, int i) throws IOException {
         int j = datainput.readInt();
+        com.google.common.base.Preconditions.checkArgument( j < 1 << 24);
 
         this.data = new byte[j];
         datainput.readFully(this.data);
diff --git a/src/main/java/net/minecraft/server/NBTTagIntArray.java b/src/main/java/net/minecraft/server/NBTTagIntArray.java
index 49b3f14..4d6a9da 100644
--- a/src/main/java/net/minecraft/server/NBTTagIntArray.java
+++ b/src/main/java/net/minecraft/server/NBTTagIntArray.java
@@ -25,6 +25,7 @@ public class NBTTagIntArray extends NBTBase {
 
     void load(DataInput datainput, int i) throws IOException {
         int j = datainput.readInt();
+        com.google.common.base.Preconditions.checkArgument( j < 1 << 24);
 
         this.data = new int[j];
 
-- 
1.8.3.2