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: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)
kernel: Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)
kernel: out-of-bounds write in xtcompattargetfromuser() in net/netfilter/x_tables.c (CVE-2021-22555)
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 Rocky Linux-8.4.z source tree (BZ#1985050)
kernel-rt: Merge mm/memcg: Fix kmemcachealloc() performance regression (BZ#1987102)