Paper/patches/server/0561-Move-range-check-for-block-placing-up.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
2024-03-03 17:05:34 -05:00

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1.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Wed, 8 Jun 2022 10:52:18 +0200
Subject: [PATCH] Move range check for block placing up
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index c9a8d04d1485a9493f6353beb7998801e286923e..ba7f0f4e2840b88d8f53c5720752cfeed2493c49 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1738,6 +1738,11 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
if (itemstack.isItemEnabled(worldserver.enabledFeatures())) {
BlockHitResult movingobjectpositionblock = packet.getHitResult();
Vec3 vec3d = movingobjectpositionblock.getLocation();
+ // Paper start - improve distance check
+ if (!Double.isFinite(vec3d.x) || !Double.isFinite(vec3d.y) || !Double.isFinite(vec3d.z)) {
+ return;
+ }
+ // Paper end - improve distance check
BlockPos blockposition = movingobjectpositionblock.getBlockPos();
Vec3 vec3d1 = Vec3.atCenterOf(blockposition);