SUSE-SU-2026:1531-1: important: Security update for the Linux Kernel (Live Patch 20 for SUSE Linux Enterprise 15 SP6)

[SLE-SECURITY-UPDATES]

# Security update for the Linux Kernel (Live Patch 20 for SUSE Linux Enterprise
15 SP6)

Announcement ID: SUSE-SU-2026:1531-1  
Release Date: 2026-04-21T12:04:50Z  
Rating: important  
References:

  * bsc#1259859

  
Cross-References:

  * CVE-2026-23268

  
CVSS scores:

  * 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 15.6
  * SUSE Linux Enterprise Live Patching 15-SP6
  * SUSE Linux Enterprise Real Time 15 SP6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.87 fixes one
security issue

The following security issue was fixed:

  * 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 15.6  
    zypper in -t patch SUSE-2026-1531=1

  * SUSE Linux Enterprise Live Patching 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-1531=1

## Package List:

  * openSUSE Leap 15.6 (x86_64)
    * kernel-livepatch-6_4_0-150600_23_87-default-debuginfo-3-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_20-debugsource-3-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_87-default-3-150600.2.1
  * openSUSE Leap 15.6 (ppc64le s390x)
    * kernel-livepatch-6_4_0-150600_23_87-default-debuginfo-3-150600.2.2
    * kernel-livepatch-SLE15-SP6_Update_20-debugsource-3-150600.2.2
    * kernel-livepatch-6_4_0-150600_23_87-default-3-150600.2.2
  * SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x)
    * kernel-livepatch-6_4_0-150600_23_87-default-debuginfo-3-150600.2.2
    * kernel-livepatch-SLE15-SP6_Update_20-debugsource-3-150600.2.2
    * kernel-livepatch-6_4_0-150600_23_87-default-3-150600.2.2
  * SUSE Linux Enterprise Live Patching 15-SP6 (x86_64)
    * kernel-livepatch-6_4_0-150600_23_87-default-debuginfo-3-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_20-debugsource-3-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_87-default-3-150600.2.1

## References:

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

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