Ubuntu 18.04.5 LTSいくよー
10 packages can be updated.
10 updates are security updates.
$ sudo apt update; sudo apt dist-upgrade -y
:
The following NEW packages will be installed:
linux-headers-4.15.0-128 linux-headers-4.15.0-128-generic
linux-image-4.15.0-128-generic linux-modules-4.15.0-128-generic
linux-modules-extra-4.15.0-128-generic
The following packages will be upgraded:
linux-generic linux-headers-generic linux-image-generic linux-libc-dev
linux-signed-generic
:
カーネルがセキィリティ対応 
$ cat /var/run/reboot-required*
*** System restart required ***
linux-base