@wdormann Things are a bit more nuanced here...so Ubuntu ships with a polkit rule that allows admin users at the console to mount disks and loopback devices. While the heap overflow is in the kernel, CAP_SYS_ADMIN is required to mount filesystem images. We created the CVE as being Ubuntu specific, but the kernel CNA got upset and said they care about filesystem issues. So we transferred the CVE to them, and then they rejected it and told us to create a new one for our Ubuntu specific issue.