How to install Linux Kernel 4.15 in Ubuntu. Linux Kernel 4.15 released with Meltdown, Spectre patches and an improved security updates. Kernel now come with a /sys/devices/system/cpu/vulnerabilities/ virtual directory which can display all the vulnerabilities affecting CPU. Announcing the release, Linus Torvalds writes: “After a release cycle that was unusual in so many (bad) ways, […]