Greg Kroah-Hartman has released the 5.7.12,
5.4.55, 4.19.136, 4.14.191, 4.9.232, and 4.4.232 stable kernels. As usual, these
contain lots of important fixes throughout the tree; users should upgrade.

Source: LWN.net – Stable kernels 5.7.12, 5.4.55, 4.19.136, 4.14.191, 4.9.232, and 4.4.232