RHSA-2026:0760 — Security Advisory
Red Hat Security Advisory: kernel-rt security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · January 19, 2026
Updated · October 30, 2026
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
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: smb: client: Fix use-after-free in cifs_fill_dirent (CVE-2025-38051)
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kernel: smb: client: let recv_done verify data_offset, data_length and remaining_data_length (CVE-2025-39933)
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kernel: drm/i915: mark requests for GuC virtual engines to avoid use-after-free (CVE-2023-53552)
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kernel: drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies (CVE-2025-40096)
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kernel: net: atlantic: fix fragment overflow handling in RX path (CVE-2025-68301)
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.