RLSA-2026:50979

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Source
https://errata.rockylinux.org/RLSA-2026:50979
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:50979.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:50979
Upstream
  • CVE-2025-54518
Published
2026-08-07T12:02:04.507217Z
Modified
2026-08-07T12:30:05.530639629Z
Severity
  • 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Important: kernel-rt security, bug fix, and enhancement update
Details

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

Bug Fix(es) and Enhancement(s):

  • Kernel crash in bpfforeacharrayelem() due to missing backport of upstream commit 4b6313cf99b0 (JIRA:Rocky Linux-191844)

  • gfs2: xfstests generic/363 failure [rhel-8.10.z] (JIRA:Rocky Linux-214099)

  • Rocky Linux8: HYPERV hvstorvsc driver can we add additional code to allow PERSISTENTRESERVE_IN [Rocky Linux 8.10Z] (JIRA:Rocky Linux-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.

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / kernel-rt

Package

Name
kernel-rt
Purl
pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.153.1.rt7.494.el8_10
Database specific 
{
    "yum_repository": "NFV"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:50979.json"