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Add depth limit to Component deserializer

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Luna
2023-05-31 20:45:19 -03:00
parent 020afc9e99
commit 058846647c
8 changed files with 153 additions and 91 deletions
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23
patches/server/0049-Limit-map-decoration-count.patch Normal file
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@ -0,0 +1,23 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Luna <lunahatesgogle@gmail.com>
Date: Fri, 28 Apr 2023 18:24:55 -0300
Subject: [PATCH] Limit map decoration count
diff --git a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
index 6f64d1ce0f5b20e1579f8af64c08ef8fc4e4444b..d78036b62bb36539d3d3e1a8299af2fa60ebd379 100644
--- a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
+++ b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
@@ -357,6 +357,12 @@ public class MapItemSavedData extends SavedData {
}
private void addDecoration(MapDecoration.Type type, @Nullable LevelAccessor world, String key, double x, double z, double rotation, @Nullable Component text) {
+ // Scissors start - Limit decoration count
+ if (this.decorations.size() > 32) {
+ return;
+ }
+ // Scissors end
+
int i = 1 << this.scale;
float f = (float) (x - (double) this.x) / (float) i;
float f1 = (float) (z - (double) this.z) / (float) i;