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Check if leash tag has a uuid

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This commit is contained in:
Nassim Jahnke 2024-10-03 17:10:27 +02:00
parent fb768404aa
commit 7cd4f2c15f
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GPG key ID: EF6771C01F6EF02F
1 changed files with 19 additions and 0 deletions
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patches/server/0918-Validate-ResourceLocation-in-NBT-reading.patch
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@ -65,6 +65,25 @@ index b98f9246b60daf31460f41ce214dfa7c011f5684..842b0cec0397d7ae5166617627340ffa
}
@Nullable
diff --git a/src/main/java/net/minecraft/world/entity/Leashable.java b/src/main/java/net/minecraft/world/entity/Leashable.java
index e7535f15be3cc1537aafee53779ccfb4f21d1f38..bd6d587cedfe0e345536d7ebb6b7ca204f073efe 100644
--- a/src/main/java/net/minecraft/world/entity/Leashable.java
+++ b/src/main/java/net/minecraft/world/entity/Leashable.java
@@ -54,7 +54,13 @@ public interface Leashable {
@Nullable
default Leashable.LeashData readLeashData(CompoundTag nbt) {
if (nbt.contains("leash", 10)) {
- return new Leashable.LeashData(Either.left(nbt.getCompound("leash").getUUID("UUID")));
+ // Paper start
+ final CompoundTag leashTag = nbt.getCompound("leash");
+ if (!leashTag.hasUUID("UUID")) {
+ return null;
+ }
+ return new Leashable.LeashData(Either.left(leashTag.getUUID("UUID")));
+ // Paper end
} else {
if (nbt.contains("leash", 11)) {
Either<UUID, BlockPos> either = (Either) NbtUtils.readBlockPos(nbt, "leash").map(Either::right).orElse(null); // CraftBukkit - decompile error
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 13ef1ad250b56dbadba0244186e369d7ba9b5c0e..94169703c5a8111df1ed550d57f59f4a3bb97ae1 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java