This doesn't come from pam, but from procps / systemd which now set fs.protected_regular by default to block uid mismatches in sticky directories. See /usr/lib/sysctl.d/protect-links.conf.
** Package changed: pam (Ubuntu) => procps (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1873785 Title: Root can't modify files of other users in directories with sticky bit anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1873785/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
