Paper/patches/server/0800-Treat-sequence-violations-like-they-should-be.patch
2024-10-24 00:32:21 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 30 Mar 2023 03:13:58 +0100
Subject: [PATCH] Treat sequence violations like they should be
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index d77ab963802fcd7551058987a534ba54f080027a..74054e0acd2ecdc6d7ccdf035c9ec120872f6ef4 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1989,6 +1989,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
public void ackBlockChangesUpTo(int sequence) {
if (sequence < 0) {
+ this.disconnect(Component.literal("Expected packet sequence nr >= 0"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // Paper - Treat sequence violations like they should be
throw new IllegalArgumentException("Expected packet sequence nr >= 0");
} else {
this.ackBlockChangesUpTo = Math.max(sequence, this.ackBlockChangesUpTo);