*** This bug is a security vulnerability *** Public security bug reported:
The Linux kernel supports a lot of different filesystem types. This is cool, it's part of what makes Linux so flexible and helped bring Linux to the mainstream. However, quality of filesystem implementations varies wildly and the upstream kernel community doesn't consider flaws in filesystems to be security issues: https://lore.kernel.org/linux- fsdevel/20250407-biegung-furor-e7313ca9d712@brauner/ Ubuntu has decided to make it easy for users to mount filesystems, for better or for worse. The filesystems that have had less dedicated bug hunting bring significant risk to Ubuntu users. We can make it harder to mount these filesystem types without affecting most Ubuntu users through some simple module blocklisting. System administrators can still enable these other filesystem types with relatively easy efforts and everyone else will have reduced risk of ring 0 privilege escalation issues. ** Affects: kmod (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2114945 Title: block less common filesystems by default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kmod/+bug/2114945/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
