Issued:
2026-02-25
Updated:
2026-02-25

RHSA-2026:3358 - Moderate: kernel-rt security update

Synopsis

Moderate: kernel-rt security update

Type/Severity

Security Advisory Moderate

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 Moderate. 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: Linux kernel: xHCI driver isochronous event handling race condition leading to data loss or UAF (CVE-2025-37882)

  • kernel: scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue (CVE-2025-37861)

  • kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation (CVE-2025-38415)

  • kernel: Linux kernel: Denial of Service via out-of-bounds read in USB configuration parsing (CVE-2025-39760)

  • kernel: Linux kernel: Out-of-bounds write in VXLAN due to incorrect nexthop hash size leading to denial of service (CVE-2023-53192)

  • kernel: smb: client: let recv_done verify data_offset, data_length and remaining_data_length (CVE-2025-39933)

  • kernel: Linux kernel: Use-after-free in proc_readdir_de() can lead to privilege escalation or denial of service. (CVE-2025-40271)

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

  • kernel: Linux kernel ALSA USB audio driver: Buffer overflow leading to information disclosure and denial of service (CVE-2025-40269)

  • kernel: ip6_vti: fix slab-use-after-free in decode_session6 (CVE-2023-53821)

  • kernel: ext4: fix use-after-free in ext4_orphan_cleanup (CVE-2022-50673)

  • kernel: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid (CVE-2025-68349)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions9.2x86_64

Updated Packages

  • kernel-rt-core-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-modules-core-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-modules-extra-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-kvm-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debug-modules-core-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debug-debuginfo-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debug-modules-extra-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-devel-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debuginfo-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debug-modules-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debug-core-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debug-devel-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-modules-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-5.14.0-284.158.1.rt14.443.el9_2.src.rpm
  • kernel-rt-debug-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm
  • kernel-rt-debug-kvm-5.14.0-284.158.1.rt14.443.el9_2.x86_64.rpm

Fixes

CVEs

References

Additional information