SUSE-SU-2026:0539-1: important: Security update for the Linux Kernel (Live Patch 29 for SUSE Linux Enterprise 15 SP5)

Mon Feb 16 08:30:30 UTC 2026

# Security update for the Linux Kernel (Live Patch 29 for SUSE Linux Enterprise
15 SP5)

Announcement ID: SUSE-SU-2026:0539-1  
Release Date: 2026-02-15T15:33:36Z  
Rating: important  
References:

  * bsc#1249205
  * bsc#1249455
  * bsc#1249480
  * bsc#1250314

Cross-References:

  * CVE-2023-53321
  * CVE-2025-38111
  * CVE-2025-38352
  * CVE-2025-39742

CVSS scores:

  * CVE-2023-53321 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2023-53321 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-53321 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2023-53321 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2025-38111 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-38111 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38111 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2025-38352 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-38352 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38352 ( NVD ):  7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-39742 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-39742 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-39742 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise Live Patching 15-SP5
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Real Time 15 SP5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves four vulnerabilities can now be installed.

## Description:

This update for the SUSE Linux Enterprise kernel 5.14.21-150500.55.116 fixes
various security issues

The following security issues were fixed:

  * CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250314).
  * CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access
    (bsc#1249455).
  * CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers()
    and posix_cpu_timer_del() (bsc#1249205).
  * CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in
    find_hw_thread_mask() (bsc#1249480).

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-539=1 SUSE-2026-540=1 SUSE-2026-541=1

  * SUSE Linux Enterprise Live Patching 15-SP5  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-539=1 SUSE-SLE-
Module-Live-Patching-15-SP5-2026-540=1 SUSE-SLE-Module-Live-
Patching-15-SP5-2026-541=1

## Package List:

  * openSUSE Leap 15.5 (ppc64le s390x x86_64)
    * kernel-livepatch-SLE15-SP5_Update_29-debugsource-9-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_110-default-12-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-12-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_103-default-13-150500.2.1
    * kernel-livepatch-SLE15-SP5_Update_26-debugsource-13-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_103-default-debuginfo-13-150500.2.1
    * kernel-livepatch-SLE15-SP5_Update_27-debugsource-12-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_116-default-9-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_116-default-debuginfo-9-150500.2.1
  * SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
    * kernel-livepatch-5_14_21-150500_55_110-default-12-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-12-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_103-default-13-150500.2.1
    * kernel-livepatch-SLE15-SP5_Update_26-debugsource-13-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_103-default-debuginfo-13-150500.2.1
    * kernel-livepatch-SLE15-SP5_Update_27-debugsource-12-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_116-default-9-150500.2.1
    * kernel-livepatch-5_14_21-150500_55_116-default-debuginfo-9-150500.2.1
  * SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x)
    * kernel-livepatch-SLE15-SP5_Update_29-debugsource-9-150500.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-53321.html
  * https://www.suse.com/security/cve/CVE-2025-38111.html
  * https://www.suse.com/security/cve/CVE-2025-38352.html
  * https://www.suse.com/security/cve/CVE-2025-39742.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1249205
  * https://bugzilla.suse.com/show_bug.cgi?id=1249455
  * https://bugzilla.suse.com/show_bug.cgi?id=1249480
  * https://bugzilla.suse.com/show_bug.cgi?id=1250314

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