Security update for the Linux Kernel (Live Patch 27 for SUSE Linux Enterprise 15 SP5)

Announcement ID:	SUSE-SU-2026:1622-1
Release Date:	2026-04-25T06:33:49Z
Rating:	important
References:	bsc#1258396 bsc#1259859
Cross-References:	CVE-2026-23191 CVE-2026-23268
CVSS scores:	CVE-2026-23191 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23191 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2026-23191 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23191 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23268 ( 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-2026-23268 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23268 ( 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 two vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.110 fixes various security issues

The following security issues were fixed:

• CVE-2026-23191: ALSA: aloop: Fix racy access at PCM trigger (bsc#1258396).
• CVE-2026-23268: apparmor: fix unprivileged local user can do privileged policy management (bsc#1259859).

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-2026-1627=1 SUSE-2026-1628=1
• SUSE Linux Enterprise Live Patching 15-SP5
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-1627=1 SUSE-SLE-Module-Live-Patching-15-SP5-2026-1628=1
• openSUSE Leap 15.4
  zypper in -t patch SUSE-2026-1622=1 SUSE-2026-1623=1 SUSE-2026-1624=1 SUSE-2026-1625=1 SUSE-2026-1626=1
• SUSE Linux Enterprise Live Patching 15-SP4
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1622=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-1623=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-1624=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-1625=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-1626=1

Package List:

• openSUSE Leap 15.5 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP5_Update_27-debugsource-16-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-17-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_110-default-16-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-debuginfo-17-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_25-debugsource-17-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-16-150500.2.1
• SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP5_Update_27-debugsource-16-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-17-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_110-default-16-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_100-default-debuginfo-17-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_25-debugsource-17-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-16-150500.2.1
• openSUSE Leap 15.4 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP4_Update_41-debugsource-16-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_164-default-debuginfo-17-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_167-default-debuginfo-16-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_176-default-11-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_40-debugsource-17-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_179-default-9-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_179-default-debuginfo-9-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_173-default-12-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_176-default-debuginfo-11-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_44-debugsource-11-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_164-default-17-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_43-debugsource-12-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_173-default-debuginfo-12-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_167-default-16-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_45-debugsource-9-150400.2.1
• SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP4_Update_41-debugsource-16-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_164-default-debuginfo-17-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_167-default-debuginfo-16-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_176-default-11-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_40-debugsource-17-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_179-default-9-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_179-default-debuginfo-9-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_173-default-12-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_176-default-debuginfo-11-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_44-debugsource-11-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_164-default-17-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_43-debugsource-12-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_173-default-debuginfo-12-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_167-default-16-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_45-debugsource-9-150400.2.1

References:

• https://www.suse.com/security/cve/CVE-2026-23191.html
• https://www.suse.com/security/cve/CVE-2026-23268.html
• https://bugzilla.suse.com/show_bug.cgi?id=1258396
• https://bugzilla.suse.com/show_bug.cgi?id=1259859