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Copy itemstack when sanitizing for datawatcher items

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Since the packet is broadcasted for players, it means that
the packet will be sent to multiple players. In this case,
modifying the data results in a possible race condition
where a CME may occur as the packet will be serialized on
many different netty IO threads.
This commit is contained in:
Spottedleaf
2023-06-16 10:27:59 -07:00
parent cffc14631b
commit c0d376e242
1 changed files with 1 additions and 1 deletions
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2
patches/server/Prevent-sending-oversized-item-data-in-equipment-and.patch
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@@ -13,7 +13,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
@Override @Override
public void write(FriendlyByteBuf buf, ItemStack value) { public void write(FriendlyByteBuf buf, ItemStack value) {
- buf.writeItem(value); - buf.writeItem(value);
+ buf.writeItem(net.minecraft.world.entity.LivingEntity.sanitizeItemStack(value, false)); // Paper - prevent oversized data + buf.writeItem(net.minecraft.world.entity.LivingEntity.sanitizeItemStack(value, true)); // Paper - prevent oversized data
} }
@Override @Override