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Paper-Old/patches/server/1055-Validate-slot-in-PlayerInventory-setSlot.patch
2024-09-21 21:19:02 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: strnq <dev@aruus.uk>
Date: Sat, 14 Sep 2024 12:53:13 +0300
Subject: [PATCH] Validate slot in PlayerInventory#setSlot
The CraftPlayerInventory implementation sends a container_set_slot
packet to the client which will error if an invalid slot is passed to
the setSlot method, making a validation necessary over simply silently
ignoring invalid slot values.
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java
index eafa54c870c3e2aef30c3f9f96f516607a7cae24..8dea4321e41080829b474ad7b5a12c6a622181fd 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java
@@ -70,6 +70,11 @@ public class CraftInventoryPlayer extends CraftInventory implements org.bukkit.i
@Override
public void setItem(int index, ItemStack item) {
+ // Paper start - Validate setItem index
+ if (index < 0 || index > 40) {
+ throw new ArrayIndexOutOfBoundsException("Index must be between 0 and 40");
+ }
+ // Paper end - Validate setItem index
super.setItem(index, item);
if (this.getHolder() == null) return;
ServerPlayer player = ((CraftPlayer) this.getHolder()).getHandle();