Red Hat Enterprise Linux 8 RHSA-2021-3548-01 Moderate Kernel Security Fix

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)
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):
* RHEL8.4 Nightly[0308] - HST:STC950:Fleetwood: LPAR crashed during LPM: BUG at lib/locks.c:34! (using ibmvfc) (BZ#1969792)
* RHEL8.2 - s390/vtime: fix increased steal time accounting (BZ#1988386)
* [FJ8.4 Bug]: Installation of RHEL8.4 hang up on a Tatlow platform while loading intel_lpss_pci module. (BZ#1989560)
* kernel panic in drm_fb_helper_dirty_work() caused by a race condition qxl driver (BZ#1992839)
* [RHEL8.4] TIOCGSERIAL ioctl fails on serial device (BZ#1993872)
* RHEL8.4 Nightly[0208] - kernel panic when executing test case for persistent device configuration (using DASD) (BZ#1995206)
* Killing ceph daemon leaving an unhealthy ocs/ocp cluster (worker node/s NotReady) (BZ#1995862)
* ceph: potential data corruption in cephfs write_begin codepath (BZ#1996680)
* libceph: allow addrvecs with a single NONE/blank address (BZ#1996682)
* [iavf] traffic stops after host sets vf trust on (BZ#1997536)
* [ice][iavf] hit some call trace and system panic when create-remove-vfs in loop (BZ#1997538)
* Missing backport of IMA boot aggregate calculation in rhel 8.4 kernel (BZ#1997766)
* XArray tests broken for single processor (BZ#1997997)
* [RHEL-8.4] mlock() end up returning -EINVAL instead of -ENOMEM in rewriting the upper address bits. (BZ#1997998)
* Kernel panic at n_tty_set_termios+0x30 (BZ#1997999)
* [ice]BUG: scheduling while atomic: ifenslave/270215/0x00000200 (BZ#2000129)
* [ice]port lost connectivity after removing from bonding (BZ#2000130)
Enhancement(s):
* [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 (BZ#1983681)