RHSA-2020:1984: Moderate: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: powerpc: incomplete Spectre-RSB mitigation leads to information exposure (CVE-2019-18660)</li> 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.<br>Bug Fix(es):<br><li> [Stratus 7.6 Bug] Deadlock on hcd-&gt;bandwidthmutex when usb controller fails during initialization (BZ#1764528)</li> <li> RHEL7.7 Snapshot5 - retry when cpu offline races with migration (BZ#1766094)</li> <li> Slow console output with ast (Aspeed) graphics driver (BZ#1780147)</li> <li> RHEL7.7 - qeth: add safeguards to RX data path (BZ#1792248)</li> <li> 'soft lockup' events during unmount of container file system due to bloated dentry cache / memory cgroup slab cache reclaim not available in RHEL7 (BZ#1796358)</li> <li> [GSS] Can't access the mount point due to possible blocking of i/o on rbd (BZ#1796435)</li> <li> [xfstests]: copyfilerange cause corruption on rhel-7 (BZ#1797967)</li> <li> kernel: UAF in cdevput() when a PTP device is removed while its chardev is open (BZ#1798395)</li> <li> [HPE 7.8 Bug] RHEL7.8 kernel may ignore NMI from ilo (BZ#1798397)</li> <li> [HPEMC RHEL 7.7 RHEL 7.8 REGRESSION] kernel not populating numanod in /sys/devices... for PMEM (BZ#1801697)</li> <li> Unable to exclude files from auditing (BZ#1806429)</li> <li> DNAT'd packet is not unmangled upon reply on openshift node (BZ#1806446)</li> <li> port show-kabi to python3 (BZ#1806929)</li> <li> top shows super high loads when tuned profile realtime-virtual-host is applied (BZ#1808029)</li> <li> Backport CIFS stale ESTALE handling and dentry revalidation patches (BZ#1811053)</li> <li> Observed a memory leak while using dm-multipath (BZ#1812936)</li> <li> dm-multipath high load backport incorrect (BZ#1814536)</li>