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openSUSE 15 SP5 Kernel Security Flaw Concern Notice SUSE-SU-2026-1625-1

opensuse
Calendar Grey April 27, 2026
Dist Opensuse Esm H88
An update addressing critical vulnerabilities in the openSUSE Linux Kernel has been released. Install updates to secure your system.
An update that solves two vulnerabilities can now be installed.

Description

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.121 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 privilege escalation important local threat kernel OpenSUSE

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:

* SUSE Linux Enterprise Live Patching 15-SP5

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-1620=1

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-1621=1

* SUSE Linux Enterprise Live Patching 15-SP4

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1621=1

* openSUSE Leap 15.5

zypper in -t patch SUSE-2026-1620=1

Package List

* SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150500_55_121-default-debuginfo-10-150500.2.1

* kernel-livepatch-5_14_21-150500_55_121-default-10-150500.2.1

* kernel-livepatch-SLE15-SP5_Update_30-debugsource-10-150500.2.1

* openSUSE Leap 15.4 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150400_24_161-default-17-150400.2.1

* kernel-livepatch-5_14_21-150400_24_161-default-debuginfo-17-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_39-debugsource-17-150400.2.1

* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150400_24_161-default-17-150400.2.1

* kernel-livepatch-5_14_21-150400_24_161-default-debuginfo-17-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_39-debugsource-17-150400.2.1

* openSUSE Leap 15.5 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150500_55_121-default-debuginfo-10-150500.2.1

* kernel-livepatch-5_14_21-150500_55_121-default-10-150500.2.1

*...

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-2026:1621-1
Release Date: 2026-04-24T19:04:09Z
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 privilege escalation important local threat kernel OpenSUSE

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