The broker usually guarantees the stock to the lender, and will sell any other assets the short seller has to cover. A broker isn’t going to let the short selle

The broker usually guarantees the stock to the lender, and will sell any other assets the short seller has to cover. A broker isn’t going to let the short seller get in too over their head. While conceivably what you are suggesting could happen, I don’t know if it ever has.