Take a look at Red Hat's guidelines, based on the open-source Model Trademark Guidelines (CC-BY-4.0), for comparison. They advise they consider it acceptable for you to claim "[Your brand] software is built from modified source code derived from Red Hat Enterprise Linux." However, without additional permission you cannot "Use the Red Hat Marks in a way that expresses or implies sponsorship or endorsement by, or affiliation or a relationship with Red Hat when one does not exist."