Since I saw this with some of the already submitted exercises: please read the instructions carefully! You must provide the hash of the commit you want us to consider for the fixed version as well as the exploits. Also, create a merge request in Gitlab for your changes once you are done.
If the commit hash is missing from the uploaded PDF, we will not consider any code in the Git repository. Please make sure that you understand all instructions on the sheet. If not, please state your questions on Askbot for us to answer (and all others to see).