RHSA-2020:3016: Important: kernel-rt security and bug fix update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.Security Fix(es): kernel: use-after-free in sound/core/timer.c (CVE-2019-19807) kernel: kernel: DAX hugepages not considered during mremap (CVE-2020-10757) kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (CVE-2020-10766) kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. (CVE-2020-10767) kernel: Indirect branch speculation can be enabled after it was force-disabled by the PRSPECFORCEDISABLE prctl command. (CVE-2020-10768) kernel: buffer overflow in mwifiexcmdappendvsietlv function in drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653) kernel: heap-based buffer overflow in mwifiexretwmmgetstatus function in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654) Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888) kernel: kvm: Information leak within a KVM guest (CVE-2019-3016) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Bug Fix(es): kernel-rt: update RT source tree to the RHEL-8.2.z2 source tree (BZ#1829582)