spigot/CraftBukkit-Patches/0042-Catch-stalling-on-corrupted-map-data-NBT-arrays.patch

From ec6044256bbb42fddc1222d9bb41d2d7785e380b 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 d631544a3..034244c24 100644
--- a/src/main/java/net/minecraft/server/NBTTagByteArray.java
+++ b/src/main/java/net/minecraft/server/NBTTagByteArray.java
@@ -14,6 +14,7 @@ public class NBTTagByteArray extends NBTList<NBTTagByte> {
         public NBTTagByteArray b(DataInput datainput, int i, NBTReadLimiter nbtreadlimiter) throws IOException {
             nbtreadlimiter.a(192L);
             int j = datainput.readInt();
+            com.google.common.base.Preconditions.checkArgument( j < 1 << 24); // Spigot
 
             nbtreadlimiter.a(8L * (long) j);
             byte[] abyte = new byte[j];
diff --git a/src/main/java/net/minecraft/server/NBTTagIntArray.java b/src/main/java/net/minecraft/server/NBTTagIntArray.java
index 6e46754f1..369f7c13a 100644
--- a/src/main/java/net/minecraft/server/NBTTagIntArray.java
+++ b/src/main/java/net/minecraft/server/NBTTagIntArray.java
@@ -14,6 +14,7 @@ public class NBTTagIntArray extends NBTList<NBTTagInt> {
         public NBTTagIntArray b(DataInput datainput, int i, NBTReadLimiter nbtreadlimiter) throws IOException {
             nbtreadlimiter.a(192L);
             int j = datainput.readInt();
+            com.google.common.base.Preconditions.checkArgument( j < 1 << 24); // Spigot
 
             nbtreadlimiter.a(32L * (long) j);
             int[] aint = new int[j];
-- 
2.25.1