RHSA-2026:47632 — Security Advisory
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · July 30, 2026
Updated · October 30, 2026
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
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: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)
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kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)
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kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (CVE-2026-46116)
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kernel: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() (CVE-2026-46209)
Bug Fix(es) and Enhancement(s):
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[RHEL-9] Performance impact of CVE-2025-38085 (JIRA:RHEL-161143)
-
NVMe-FC: Panic during NVMe Controller Reset tests (JIRA:RHEL-178451)
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.