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Validate coordinates before attempting to get block entities when handling Creative Inventory packets

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Video 2022-03-20 07:49:57 -06:00
parent 1a748f754c
commit 72b2109450
1 changed files with 40 additions and 0 deletions
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patches/server/0015-Validate-coordinates-before-attempting-to-get-block-.patch Normal file
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@ -0,0 +1,40 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Video <videogamesm12@gmail.com>
Date: Sun, 20 Mar 2022 07:46:37 -0600
Subject: [PATCH] Validate coordinates before attempting to get block entities
when handling Creative Inventory packets
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 621ec8e8a197323da6b423fee57c816ac9d7c875..f3d6b9b8db85c8e93a3af161c15b7aa873ebc5cf 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2937,16 +2937,21 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
if (!itemstack.isEmpty() && nbttagcompound != null && nbttagcompound.contains("x") && nbttagcompound.contains("y") && nbttagcompound.contains("z") && this.player.getBukkitEntity().hasPermission("minecraft.nbt.copy")) { // Spigot
BlockPos blockposition = new BlockPos(nbttagcompound.getInt("x"), nbttagcompound.getInt("y"), nbttagcompound.getInt("z"));
- BlockEntity tileentity = this.player.level.getBlockEntity(blockposition);
+ // Scissors start - Validate coordinates before anything else
+ if (Level.isInSpawnableBounds(blockposition))
+ {
+ BlockEntity tileentity = this.player.level.getBlockEntity(blockposition);
- if (tileentity != null) {
- CompoundTag nbttagcompound1 = tileentity.save(new CompoundTag());
+ if (tileentity != null) {
+ CompoundTag nbttagcompound1 = tileentity.save(new CompoundTag());
- nbttagcompound1.remove("x");
- nbttagcompound1.remove("y");
- nbttagcompound1.remove("z");
- itemstack.addTagElement("BlockEntityTag", (Tag) nbttagcompound1);
+ nbttagcompound1.remove("x");
+ nbttagcompound1.remove("y");
+ nbttagcompound1.remove("z");
+ itemstack.addTagElement("BlockEntityTag", (Tag) nbttagcompound1);
+ }
}
+ // Scissors end
}
boolean flag1 = packet.getSlotNum() >= 1 && packet.getSlotNum() <= 45;