RLSA-2026:55765

Source
https://errata.rockylinux.org/RLSA-2026:55765
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:55765.json
JSON Data
https://api.test.osv.dev/v1/vulns/RLSA-2026:55765
Upstream
  • CVE-2026-17523
Published
2026-08-18T06:01:58.911169Z
Modified
2026-08-18T06:30:03.293137504Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/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: mm/slub: avoid accessing metadata when pointer is invalid in object_err() (CVE-2025-39902)

  • kernel: drm/amdkfd: Fix out-of-bounds write in kfdeventpage_set() (CVE-2026-43206)

  • kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016)

  • kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136)

  • kernel: drm/amd/display: Use kreallocarray() in dalvector_reserve() (CVE-2026-53329)

  • kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374)

  • kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884)

  • kernel: drm/amdgpu: fix amdgpuhmmrangegetpages (CVE-2026-63879)

  • kernel: drm/amd/display: Validate payload length and linkindex in dcprocessdmubauxtransferasync (CVE-2026-64219)

  • kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges (CVE-2026-17523)

Bug Fix(es) and Enhancement(s):

  • Backport "sched/deadline: Fix bandwidth reclaim equation in GRUB" to Rocky Linux 8.10 (JIRA:Rocky Linux-189997)

  • vhost: reset the vring metadata cache on vring reconfiguration [rhel-8.10.z] (JIRA:Rocky Linux-224556)

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.

Database specific
{
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:55765",
    "license": "CC-BY-4.0"
}
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
0:4.18.0-553.156.1.rt7.497.el8_10
Database specific
Show details
{
    "yum_repository": "NFV"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:55765.json"