openSUSE 15.4 Kernel Important Patch ALSA Local User Fix SUSE-2026-1578

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.158 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 15.4 zypper in -t patch SUSE-2026-1578=1 * SUSE Linux Enterprise Live Patching 15-SP4 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1578=1

## 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:

zypper in -t patch SUSE-2026-1578=1

* SUSE Linux Enterprise Live Patching 15-SP4

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1578=1

* openSUSE Leap 15.4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_158-default-17-150400.2.1 * kernel-livepatch-SLE15-SP4_Update_38-debugsource-17-150400.2.1 * kernel-livepatch-5_14_21-150400_24_158-default-debuginfo-17-150400.2.1 * SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_158-default-17-150400.2.1 * kernel-livepatch-SLE15-SP4_Update_38-debugsource-17-150400.2.1 * kernel-livepatch-5_14_21-150400_24_158-default-debuginfo-17-150400.2.1

* openSUSE Leap 15.4 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150400_24_158-default-17-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_38-debugsource-17-150400.2.1

* kernel-livepatch-5_14_21-150400_24_158-default-debuginfo-17-150400.2.1

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

* kernel-livepatch-5_14_21-150400_24_158-default-17-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_38-debugsource-17-150400.2.1

* kernel-livepatch-5_14_21-150400_24_158-default-debuginfo-17-150400.2.1

* bsc#1258396 * bsc#1259859 ## References: * * * *

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