Language: Java
Label: vulnerable
CWE: CWE-502 \u2014 Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

Code:
	public void readData(LPDataInput input) throws IOException {
		slotId = input.readInt();
		stack = input.readItemIdentifierStack().makeNormalStack();
		button = input.readInt();
	}