Moderate: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: In Overlayfs missing a check for a negative dentry before calling vfs_rename() (CVE-2021-20321)

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):

* panic while breaking a lease/delegation after user mode helper invocation (BZ#2010333)

* The ASR driver is causing a system crash in Rocky Linux8.4 compared to Rocky Linux8.3 due to kernel changes (BZ#2016384)

* Rocky Linux8: DFS provided SMB shares are not accessible following unprivileged access (BZ#2017177)

* Avoid hitting the rtnl_trylock/restart_syscall logic in net-sysfs when possible (BZ#2021165)

* Rocky Linux8: x86/Kconfig: Do not enable AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT (BZ#2024678)

* Rocky Linux8.4-[Regression][P10][DD2.0][Rainier/Denali] - system crashed while offlining and onlining cores (BZ#2026450)