PL/SQL :: Only Get Users That Match All Links

Seemingly a very simple problem, but I can't seem to figure it out. Table below is a table that holds UserId' s and LinkId's.  

CREATE TABLE UserLink (UserId NUMBER, LinkId NUMBER );
ALTER TABLE UserLink ADD PRIMARY KEY (UserId, LinkId);
INSERT INTO UserLink VALUES (1, 1);
INSERT INTO UserLink VALUES (1, 2);
INSERT INTO UserLink VALUES (3, 1);
INSERT INTO UserLink VALUES (4, 1);

I'm looking for a query in which I can plug a List of LinkId's that outputs only users that have a relationship with ALL LinkId's provided. In this example you may assume that the List is equal to (1, 2), but you can't make any assumptions about the size of the list, other than size != 0. The query to find users that match ANY of the provided LinkId's is quite simple:  

SELECT UserId FROM UserLink
WHERE LinkId IN (1,2)

The correct query should output: 

USERID
------
1

And it should work for any size > 0 list of values.