This update for util-linux fixes the following issues: This security issue was fixed: - CVE-2017-2616: In su with PAM support it was possible for local users to send SIGKILL to selected other processes with root privileges . This non-security issues were fixed: - lscpu: Implement WSL detection and work around crash - fstrim: De-duplicate btrfs sub-volumes for fstrim -a and bind mounts - Fix regressions in safe loop re-use patch set for libmount - Disable ro checks for mtab - Ensure that the option users,exec,dev,suid work as expected on NFS mounts - Fix empty slave detection to prevent 100% CPU load in some cases