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SUSE 2026 1560-1 Kernel Important Race Condition Privilege Escalation

suse
Calendar Grey April 23, 2026
Dist Suse Esm H88
Important kernel patch for SUSE Linux resolves multiple security issues effectively and enhances system integrity.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.127 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-2026-1560=1 * SUSE Linux Enterprise Live Patching 15-SP5 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-1560=1 ## Package List: * openSUSE Leap 15.5 (ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory local privilege escalation SuSE important race condition kernel

References

* bsc#1258396

* bsc#1259859

Cross-

* 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 15.5

* SUSE Linux Enterprise High Performance Computing 15 SP5

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1560-1
Release Date: 2026-04-23T05:47:33Z
Rating: important

Topics%20covered

Topics Covered

security advisory local privilege escalation SuSE important race condition kernel

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