1c5f8b0fce
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 33a2b476 PR-734: Make PlayerInventory#getItem Nullable CraftBukkit Changes: 953d3ddc SPIGOT-3034: PlayerKickEvent.setLeaveMessage(String) doesn't actually do anything 2c47af0c SPIGOT-6963: CraftMetaBlockState#getBlockState applied TileEntity ids without the minecraft namespace prefix.
27 lines
1.9 KiB
Diff
27 lines
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Sat, 2 May 2020 03:09:46 -0400
|
|
Subject: [PATCH] Validate PickItem Packet and kick for invalid
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
index 33d5538c17272d69cdc6207de9fb32fb1bc304c2..11448b0263f5354b6d6e6ef9df560ce24c940a3a 100644
|
|
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
|
|
@@ -885,7 +885,14 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
|
|
@Override
|
|
public void handlePickItem(ServerboundPickItemPacket packet) {
|
|
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
|
|
- this.player.getInventory().pickSlot(packet.getSlot());
|
|
+ // Paper start - validate pick item position
|
|
+ if (!(packet.getSlot() >= 0 && packet.getSlot() < this.player.getInventory().items.size())) {
|
|
+ ServerGamePacketListenerImpl.LOGGER.warn("{} tried to set an invalid carried item", this.player.getName().getString());
|
|
+ this.disconnect("Invalid hotbar selection (Hacking?)");
|
|
+ return;
|
|
+ }
|
|
+ this.player.getInventory().pickSlot(packet.getSlot()); // Paper - Diff above if changed
|
|
+ // Paper end
|
|
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, this.player.getInventory().selected, this.player.getInventory().getItem(this.player.getInventory().selected)));
|
|
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, packet.getSlot(), this.player.getInventory().getItem(packet.getSlot())));
|
|
this.player.connection.send(new ClientboundSetCarriedItemPacket(this.player.getInventory().selected));
|