RLSA-2026:2821

Source
https://errata.rockylinux.org/RLSA-2026:2821
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:2821.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:2821
Upstream
Published
2026-02-26T20:43:38.668572Z
Modified
2026-02-26T21:25:14.475177Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H CVSS Calculator
Summary
Moderate: kernel-rt security 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: smc: Use _skdstget() and dstdevrcu() in smcclcprfxmatch() (CVE-2025-40168)

  • kernel: Linux kernel Bluetooth: Denial of Service due to use-after-free in connection handling (CVE-2023-53762)

  • kernel: Linux kernel: Out-of-bounds write in fbdev can lead to privilege escalation, information disclosure, or denial of service. (CVE-2025-40304)

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
0:4.18.0-553.105.1.rt7.446.el8_10
Database specific
{
    "yum_repository": "NFV"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:2821.json"