This kernel update is based on the upstream 5.3.7 and fixes several issues:
various security issues in the usb subsystem
rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux
kernel through 5.3.6 lacks a certain upper-bound check, leading to a
buffer overflow (CVE-2019-17666)
Other issues fixed by this update:
Xorg displays a black screen with kernel > 5.2.x on some Intel GPUs
(mga#25546)
Firmware crash with Intel(R) Dual Band Wireless AC 3168 (mga#25609)
a fix for an MTRR bug for intel-lpss-pci causing at least some Ice Lake
laptops to not boot
For other upstream fixes in this update, see the referenced changelog.