New Linux kernel bug lets you get root on most modern distros. This Linux kernel's filesystem security vulnerability can enable any user to grab root privileges. Unprivileged attackers can gain root privileges by exploiting a local privilege escalation (LPE) vulnerability in default configurations of the Linux Kernel.
Linux kernel security vulnerability affects all versions of Linux.
This security flaw was introduced in April 2015 and is present in all systemd versions released since then (systemd is a system and service manager that is designed specifically for Linux kernel). The good news is that while this problem is alive and nasty in any system running the Linux kernel 3.16 through 5.13.x before 5.13.4, patches are available.
So, if you've been complacent and not updating your Linux computers, it's time to start typing in patching commands.