Security update for the Linux Kernel (Live Patch 21 for SUSE Linux Enterprise 15 SP6)

Announcement ID:	SUSE-SU-2026:2172-1
Release Date:	2026-05-31T15:06:21Z
Rating:	important
References:	bsc#1259798 bsc#1260563 bsc#1260908 bsc#1264096 bsc#1265224 bsc#1265384
Cross-References:	CVE-2025-54518 CVE-2026-23243 CVE-2026-23274 CVE-2026-23317 CVE-2026-46300 CVE-2026-46333
CVSS scores:	CVE-2025-54518 ( 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-2025-54518 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2025-54518 ( NVD ): 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVE-2026-23243 ( 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-2026-23243 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23243 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23274 ( 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-2026-23274 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23274 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23317 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-23317 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23317 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46300 ( SUSE ): 8.6 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-46300 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-46300 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46300 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46333 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46333 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVE-2026-46333 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products:	openSUSE Leap 15.5 openSUSE Leap 15.6 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Live Patching 15-SP5 SUSE Linux Enterprise Live Patching 15-SP6 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Real Time 15 SP5 SUSE Linux Enterprise Real Time 15 SP6 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that solves six vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.92 fixes various security issues

The following security issues were fixed:

• CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259798).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260908).
• CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260563).
• CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224).
• CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).

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-2026-2172=1
• SUSE Linux Enterprise Live Patching 15-SP5
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-2172=1
• openSUSE Leap 15.6
  zypper in -t patch SUSE-2026-2170=1 SUSE-2026-2171=1 SUSE-2026-2165=1 SUSE-2026-2166=1 SUSE-2026-2167=1 SUSE-2026-2173=1 SUSE-2026-2169=1
• SUSE Linux Enterprise Live Patching 15-SP6
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-2170=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-2171=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-2165=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-2166=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-2167=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-2173=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-2169=1

Package List:

• openSUSE Leap 15.5 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150500_55_130-default-debuginfo-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_130-default-8-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_33-debugsource-8-150500.2.1
• SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150500_55_130-default-debuginfo-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_130-default-8-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_33-debugsource-8-150500.2.1
• openSUSE Leap 15.6 (ppc64le s390x x86_64)
  • kernel-livepatch-6_4_0-150600_23_50-default-debuginfo-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_81-default-debuginfo-7-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_13-debugsource-16-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_65-default-12-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_20-debugsource-6-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_60-default-debuginfo-16-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_50-default-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_60-default-16-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_92-default-4-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_14-debugsource-12-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_87-default-6-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_11-debugsource-18-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_21-debugsource-4-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_12-debugsource-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_53-default-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_81-default-7-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_65-default-debuginfo-12-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_18-debugsource-7-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_53-default-debuginfo-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_87-default-debuginfo-6-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_92-default-debuginfo-4-150600.2.1
• SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
  • kernel-livepatch-6_4_0-150600_23_50-default-debuginfo-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_81-default-debuginfo-7-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_13-debugsource-16-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_65-default-12-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_20-debugsource-6-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_60-default-debuginfo-16-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_50-default-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_60-default-16-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_92-default-4-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_14-debugsource-12-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_87-default-6-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_11-debugsource-18-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_21-debugsource-4-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_12-debugsource-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_53-default-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_81-default-7-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_65-default-debuginfo-12-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_18-debugsource-7-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_53-default-debuginfo-18-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_87-default-debuginfo-6-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_92-default-debuginfo-4-150600.2.1

References:

• https://www.suse.com/security/cve/CVE-2025-54518.html
• https://www.suse.com/security/cve/CVE-2026-23243.html
• https://www.suse.com/security/cve/CVE-2026-23274.html
• https://www.suse.com/security/cve/CVE-2026-23317.html
• https://www.suse.com/security/cve/CVE-2026-46300.html
• https://www.suse.com/security/cve/CVE-2026-46333.html
• https://bugzilla.suse.com/show_bug.cgi?id=1259798
• https://bugzilla.suse.com/show_bug.cgi?id=1260563
• https://bugzilla.suse.com/show_bug.cgi?id=1260908
• https://bugzilla.suse.com/show_bug.cgi?id=1264096
• https://bugzilla.suse.com/show_bug.cgi?id=1265224
• https://bugzilla.suse.com/show_bug.cgi?id=1265384