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openSUSE 15.4 Kernel Important Updates CVE-2026-23191 CVE-2026-23268

opensuse
Calendar Grey April 27, 2026
Dist Opensuse Esm H88
# Security update for the Linux Kernel (Live Patch 27 for SUSE Linux Enterprise 15 SP5) Announcement
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).

Topics%20covered

Topics Covered

security advisory important kernel AppArmor OpenSUSE ALSA

Patch

## 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)

*...

Read the Full Advisory

References

* bsc#1258396

* bsc#1259859

## 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1622-1
Release Date: 2026-04-25T06:33:49Z
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

Topics%20covered

Topics Covered

security advisory important kernel AppArmor OpenSUSE ALSA

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