Hello again! I was able to reproduce the issue as well, and I applied the upstream patch. As you can see, the newly updated package (1.3.3-0ubuntu1~XX.YY.3) for all supported releases should fix the issue. I uploaded the packages in the security-proposed PPA (https://launchpad.net/~ubuntu-security-proposed/+archive/ubuntu/ppa/), where you can also validate the fact that the regression is now solved.
I will issue the update of the package which will make it land on the archive on Monday, as well as a Security Notice. ** Attachment added: "Screenshot from 2025-11-20 11-57-31.png" https://bugs.launchpad.net/ubuntu/+source/runc/+bug/2130744/+attachment/5927957/+files/Screenshot%20from%202025-11-20%2011-57-31.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2130744 Title: runc security upgrade regresses docker tmpfs permission handling To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/runc/+bug/2130744/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
