I am an international student in the US on an F-1 visa, my passport?
Being in the US with an expired passport is not a crime. Being in the US with an expired visa is not a crime. Your visa was only issued for the purpose of letting you travel to the US. Once you were admitted, and as long as you remain a fulltime student working toward a degree, you cant be out of status. You should, of course, renew your passport for your own convenience, in case you should be called back to your home country due to some major family distress - or for any other reason that makes sense to you. You can no doubt do that through your own embassy or nearest consulate in the US. But in the meantime, stop fretting and go do your homework; you are not in trouble.