spigot/CraftBukkit-Patches/0030-Catch-stalling-on-corrupted-map-data-NBT-arrays.patch

From 53e70f86a0880c38bc2ade59680aa17259ad498f 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/nbt/NBTTagByteArray.java b/src/main/java/net/minecraft/nbt/NBTTagByteArray.java
index ee8a06cc3..c514a6a78 100644
--- a/src/main/java/net/minecraft/nbt/NBTTagByteArray.java
+++ b/src/main/java/net/minecraft/nbt/NBTTagByteArray.java
@@ -25,6 +25,7 @@ public final class NBTTagByteArray implements NBTList {
         private static byte[] readAccounted(DataInput datainput, NBTReadLimiter nbtreadlimiter) throws IOException {
             nbtreadlimiter.accountBytes(24L);
             int i = datainput.readInt();
+            com.google.common.base.Preconditions.checkArgument( i < 1 << 24); // Spigot
 
             nbtreadlimiter.accountBytes(1L, (long) i);
             byte[] abyte = new byte[i];
diff --git a/src/main/java/net/minecraft/nbt/NBTTagIntArray.java b/src/main/java/net/minecraft/nbt/NBTTagIntArray.java
index 77b2be7c4..d32512e00 100644
--- a/src/main/java/net/minecraft/nbt/NBTTagIntArray.java
+++ b/src/main/java/net/minecraft/nbt/NBTTagIntArray.java
@@ -25,6 +25,7 @@ public final class NBTTagIntArray implements NBTList {
         private static int[] readAccounted(DataInput datainput, NBTReadLimiter nbtreadlimiter) throws IOException {
             nbtreadlimiter.accountBytes(24L);
             int i = datainput.readInt();
+            com.google.common.base.Preconditions.checkArgument( i < 1 << 24); // Spigot
 
             nbtreadlimiter.accountBytes(4L, (long) i);
             int[] aint = new int[i];
-- 
2.49.0