Time of Check vs Time of Use

Hey Chrome! Set my downloads directory to /home/beck/Downloads!

The kitchen sink libraries Chrome is built with then do:

stat("/");
access("/");
stat("/home");
access("/home");
stat("/home/beck");
access("/home/beck");
stat("/home/beck/Downloads");
access("/home/beck/Downloads");
opendir("/home/beck/Downloads");

Chrome's behavior really drove home the problem of exposing interesting program behavior when things fail