Apologies for the delay on this bug. There is a fix upstream in 5.11-rc1, I've backported the fix to the test kernel located here:
https://people.canonical.com/~sforshee/lp1900141/linux-5.4.0-59.65+lp1900141v202101061102/ I'm also attaching a script which reproduces the bug. In my testing the problem looks to be fixed by this patch, but additional testing is appreciated. ** Attachment added: "lp1900141.sh" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1900141/+attachment/5449802/+files/lp1900141.sh -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1900141 Title: overlay: permission regression in 5.4.0-51.56 due to patches related to CVE-2020-16120 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1900141/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
