Security update for the Linux Kernel (Live Patch 39 for SUSE Linux Enterprise 15 SP5)

Announcement ID:	SUSE-SU-2026:2571-1
Release Date:	2026-06-23T15:35:23Z
Rating:	important
References:	bsc#1261640 bsc#1263088 bsc#1263902 bsc#1266229 bsc#1268282
Cross-References:	CVE-2026-31402 CVE-2026-31504 CVE-2026-31694 CVE-2026-43503 CVE-2026-46323
CVSS scores:	CVE-2026-31402 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVE-2026-31402 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVE-2026-31402 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-31504 ( 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-2026-31504 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-31504 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-31694 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-31694 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-31694 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-43503 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-43503 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-43503 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-46323 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46323 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.4 openSUSE Leap 15.5 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Live Patching 15-SP4 SUSE Linux Enterprise Live Patching 15-SP5 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Real Time 15 SP4 SUSE Linux Enterprise Real Time 15 SP5 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves five vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.163 fixes various security issues

The following security issues were fixed:

• CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640).
• CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088).
• CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902).
• CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).
• CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282).

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:

• SUSE Linux Enterprise Live Patching 15-SP5
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-2593=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-2572=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-2586=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-2573=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-2574=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-2576=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-2577=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-2587=1
• openSUSE Leap 15.5
  zypper in -t patch SUSE-2026-2593=1 SUSE-2026-2572=1 SUSE-2026-2586=1 SUSE-2026-2573=1 SUSE-2026-2574=1 SUSE-2026-2576=1 SUSE-2026-2577=1 SUSE-2026-2587=1
• openSUSE Leap 15.4
  zypper in -t patch SUSE-2026-2571=1 SUSE-2026-2570=1
• SUSE Linux Enterprise Live Patching 15-SP4
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-2571=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-2570=1

Package List:

• SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150400_24_194-default-7-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_200-default-5-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_194-default-debuginfo-7-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_48-debugsource-7-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_200-default-debuginfo-5-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_50-debugsource-5-150400.2.1
• openSUSE Leap 15.4 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150400_24_194-default-7-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_200-default-5-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_194-default-debuginfo-7-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_48-debugsource-7-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_200-default-debuginfo-5-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_50-debugsource-5-150400.2.1
• SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150500_55_127-default-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_127-default-debuginfo-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_133-default-debuginfo-9-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_37-debugsource-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_136-default-8-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_35-debugsource-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_136-default-debuginfo-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_130-default-debuginfo-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_163-default-3-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_144-default-debuginfo-5-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_39-debugsource-3-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_36-debugsource-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_121-default-14-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_30-debugsource-14-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_32-debugsource-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_141-default-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_130-default-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_163-default-debuginfo-3-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_144-default-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_141-default-debuginfo-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_133-default-9-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_34-debugsource-9-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_33-debugsource-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_121-default-debuginfo-14-150500.2.1
• openSUSE Leap 15.5 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150500_55_127-default-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_127-default-debuginfo-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_133-default-debuginfo-9-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_37-debugsource-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_136-default-8-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_35-debugsource-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_136-default-debuginfo-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_130-default-debuginfo-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_163-default-3-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_144-default-debuginfo-5-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_39-debugsource-3-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_36-debugsource-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_121-default-14-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_30-debugsource-14-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_32-debugsource-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_141-default-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_130-default-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_163-default-debuginfo-3-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_144-default-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_141-default-debuginfo-5-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_133-default-9-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_34-debugsource-9-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_33-debugsource-9-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_121-default-debuginfo-14-150500.2.1

References:

• https://www.suse.com/security/cve/CVE-2026-31402.html
• https://www.suse.com/security/cve/CVE-2026-31504.html
• https://www.suse.com/security/cve/CVE-2026-31694.html
• https://www.suse.com/security/cve/CVE-2026-43503.html
• https://www.suse.com/security/cve/CVE-2026-46323.html
• https://bugzilla.suse.com/show_bug.cgi?id=1261640
• https://bugzilla.suse.com/show_bug.cgi?id=1263088
• https://bugzilla.suse.com/show_bug.cgi?id=1263902
• https://bugzilla.suse.com/show_bug.cgi?id=1266229
• https://bugzilla.suse.com/show_bug.cgi?id=1268282