Security update for the Linux Kernel (Live Patch 28 for SUSE Linux Enterprise 15 SP5)

Announcement ID:	SUSE-SU-2026:0535-1
Release Date:	2026-02-15T11:04:07Z
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 5.14.21-150500.55.113 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-2026-538=1 SUSE-2026-535=1 SUSE-2026-536=1 SUSE-2026-537=1
• SUSE Linux Enterprise Live Patching 15-SP5
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-538=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-535=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-536=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-537=1

Package List:

• openSUSE Leap 15.5 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP5_Update_23-debugsource-14-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-13-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_28-debugsource-11-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_94-default-14-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_22-debugsource-18-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_25-debugsource-13-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_113-default-11-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_113-default-debuginfo-11-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-debuginfo-13-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_91-default-debuginfo-18-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_94-default-debuginfo-14-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_91-default-18-150500.2.1
• SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP5_Update_23-debugsource-14-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-13-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_28-debugsource-11-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_94-default-14-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_22-debugsource-18-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_25-debugsource-13-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_113-default-11-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_113-default-debuginfo-11-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-debuginfo-13-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_91-default-debuginfo-18-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_94-default-debuginfo-14-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_91-default-18-150500.2.1

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