Probably the most important vulnerability patched in this new Linux kernel security update for RHEL and CentOS 7 systems is a flaw (CVE-2020-10757) discovered in the way mremap handled DAX Huge Pages, which could allow a local attacker with access to a DAX enabled storage to escalate their privileges on the system. Also important is the buffer overflow (CVE-2020-12653) discovered in Linux kernel’s Marvell WiFi-Ex driver, which could allow a local user to escalate their privileges on the system. This was patched as well in the new kernel security update, but you can protect yourself by blacklisting the mwifiex kernel module.