The 4.14.13 stable kernel update contains a number of important fixes across the tree. This is also the first update to contain some spectre mitigations. Some patches for variant 1 as well as the initial retpoline build for variant 2. These variant 2 mitigations will improve with further patches, and once compiler support is improved.
After installing this update it is required that you reboot your
system to ensure the changes supplied by this update are applied
How to install
sudo dnf upgrade --advisory=FEDORA-2018-21a7ad920c