spigot/CraftBukkit-Patches/0043-Catch-stalling-on-corrupted-map-data-NBT-arrays.patch
2019-07-30 20:52:01 +10:00

33 lines
1.6 KiB
Diff

From f0407a6b4a438f42d9d3d7ffb5df50e7bd095cfe 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 cd5314121..1110b277f 100644
--- a/src/main/java/net/minecraft/server/NBTTagByteArray.java
+++ b/src/main/java/net/minecraft/server/NBTTagByteArray.java
@@ -43,6 +43,7 @@ public class NBTTagByteArray extends NBTList<NBTTagByte> {
public void load(DataInput datainput, int i, NBTReadLimiter nbtreadlimiter) throws IOException {
nbtreadlimiter.a(192L);
int j = datainput.readInt();
+ com.google.common.base.Preconditions.checkArgument( j < 1 << 24);
nbtreadlimiter.a((long) (8 * j));
this.data = new byte[j];
diff --git a/src/main/java/net/minecraft/server/NBTTagIntArray.java b/src/main/java/net/minecraft/server/NBTTagIntArray.java
index 36a9edd2e..e3ed32aa7 100644
--- a/src/main/java/net/minecraft/server/NBTTagIntArray.java
+++ b/src/main/java/net/minecraft/server/NBTTagIntArray.java
@@ -51,6 +51,7 @@ public class NBTTagIntArray extends NBTList<NBTTagInt> {
public void load(DataInput datainput, int i, NBTReadLimiter nbtreadlimiter) throws IOException {
nbtreadlimiter.a(192L);
int j = datainput.readInt();
+ com.google.common.base.Preconditions.checkArgument( j < 1 << 24);
nbtreadlimiter.a((long) (32 * j));
this.data = new int[j];
--
2.20.1