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Notable Kernel Changes and UAF Guidelines for openSUSE 15.6 Updates

opensuse
Calendar Grey April 21, 2026
Dist Opensuse Esm H88
This advisory addresses security updates for openSUSE's kernel to fix important vulnerabilities.
An update that solves two vulnerabilities can now be installed.

Description

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.65 fixes

various security issues

The following security issues were fixed:

* CVE-2025-40309: Bluetooth: SCO: Fix UAF on sco_conn_free (bsc#1255066).

* CVE-2026-23268: apparmor: fix unprivileged local user can do privileged

policy management (bsc#1259859).

Topics%20covered

Topics Covered

security advisory buffer overflow important kernel policy management 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-SP6

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-1505=1 SUSE-SLE-

Module-Live-Patching-15-SP6-2026-1512=1 SUSE-SLE-Module-Live-

Patching-15-SP6-2026-1507=1

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-1512=1 SUSE-2026-1507=1 SUSE-2026-1505=1

Package List

* SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x)

* kernel-livepatch-SLE15-SP6_Update_14-debugsource-9-150600.2.2

* kernel-livepatch-6_4_0-150600_23_70-default-debuginfo-9-150600.2.2

* kernel-livepatch-6_4_0-150600_23_70-default-9-150600.2.2

* kernel-livepatch-SLE15-SP6_Update_15-debugsource-9-150600.2.2

* kernel-livepatch-6_4_0-150600_23_60-default-debuginfo-13-150600.2.2

* kernel-livepatch-6_4_0-150600_23_60-default-13-150600.2.2

* kernel-livepatch-6_4_0-150600_23_65-default-9-150600.2.2

* kernel-livepatch-6_4_0-150600_23_65-default-debuginfo-9-150600.2.2

* kernel-livepatch-SLE15-SP6_Update_13-debugsource-13-150600.2.2

* SUSE Linux Enterprise Live Patching 15-SP6 (x86_64)

* kernel-livepatch-SLE15-SP6_Update_15-debugsource-9-150600.2.1

* kernel-livepatch-6_4_0-150600_23_65-default-9-150600.2.1

* kernel-livepatch-6_4_0-150600_23_70-default-9-150600.2.1

* kernel-livepatch-6_4_0-150600_23_60-default-debuginfo-13-150600.2.1

* kernel-livepatch-6_4_0-150600_23_70-default-debuginfo-9-150600.2.1

*...

Read the Full Advisory

References

* bsc#1255066

* bsc#1259859

## References:

* https://www.suse.com/security/cve/CVE-2025-40309.html

* https://www.suse.com/security/cve/CVE-2026-23268.html

* https://bugzilla.suse.com/show_bug.cgi?id=1255066

* https://bugzilla.suse.com/show_bug.cgi?id=1259859

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1505-1
Release Date: 2026-04-21T07:34:22Z
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

Topics%20covered

Topics Covered

security advisory buffer overflow important kernel policy management OpenSUSE

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