Kernel Security Update — AlmaLinux 8 (ALSA-2026:50978)

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

Security Fix(es):

* kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation (CVE-2025-54518)

Bug Fix(es) and Enhancement(s):

* Kernel crash in bpf_for_each_array_elem() due to missing…

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

Security Fix(es):  

  * kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation (CVE-2025-54518)


Bug Fix(es) and Enhancement(s):  

  * Kernel crash in bpf_for_each_array_elem() due to missing backport of upstream commit 4b6313cf99b0 (JIRA:AlmaLinux-191844)
  * gfs2: xfstests generic/363 failure [almalinux-8.10.z] (JIRA:AlmaLinux-214099)
  * AlmaLinux8: HYPERV hv_storvsc driver can we add additional code to allow PERSISTENT_RESERVE_IN [AlmaLinux 8.10Z] (JIRA:AlmaLinux-188270)


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.

sudo dnf update