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openSUSE Leap 15 SP4 Kernel Key Update for April 2026 SUSE-SU-2026-1242-1

opensuse
Calendar Grey April 10, 2026
Dist Opensuse Esm H88
This update addresses six security flaws in the openSUSE kernel, enhancing system integrity and stability.
An update that solves six vulnerabilities can now be installed.

Description

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.179 fixes

various security issues

The following security issues were fixed:

* CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252036).

* CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup

(bsc#1252689).

* CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length

gss_token in gss_read_proxy_verf (bsc#1256780).

* CVE-2026-22999: net/sched: sch_qfq: do not free existing class in

qfq_change_class() (bsc#1257238).

* CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc

(bsc#1258051).

* CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink()

(bsc#1258784).

Topics%20covered

Topics Covered

security advisory security issue important kernel system update 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:

* openSUSE Leap 15.5

zypper in -t patch SUSE-2026-1241=1 SUSE-2026-1242=1

* SUSE Linux Enterprise Live Patching 15-SP5

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-1242=1 SUSE-SLE-

Module-Live-Patching-15-SP5-2026-1241=1

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-1240=1

* SUSE Linux Enterprise Live Patching 15-SP4

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1240=1

Package List

* openSUSE Leap 15.5 (ppc64le s390x x86_64)

* kernel-livepatch-SLE15-SP5_Update_24-debugsource-17-150500.2.1

* kernel-livepatch-5_14_21-150500_55_97-default-debuginfo-17-150500.2.1

* kernel-livepatch-SLE15-SP5_Update_27-debugsource-15-150500.2.1

* kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-15-150500.2.1

* kernel-livepatch-5_14_21-150500_55_97-default-17-150500.2.1

* kernel-livepatch-5_14_21-150500_55_110-default-15-150500.2.1

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

* kernel-livepatch-SLE15-SP5_Update_24-debugsource-17-150500.2.1

* kernel-livepatch-5_14_21-150500_55_97-default-debuginfo-17-150500.2.1

* kernel-livepatch-SLE15-SP5_Update_27-debugsource-15-150500.2.1

* kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-15-150500.2.1

* kernel-livepatch-5_14_21-150500_55_97-default-17-150500.2.1

* kernel-livepatch-5_14_21-150500_55_110-default-15-150500.2.1

* openSUSE Leap 15.4 (ppc64le s390x x86_64)

*...

Read the Full Advisory

References

* bsc#1252036

* bsc#1252689

* bsc#1256780

* bsc#1257238

* bsc#1258051

* bsc#1258784

## References:

* https://www.suse.com/security/cve/CVE-2025-39973.html

* https://www.suse.com/security/cve/CVE-2025-40018.html

* https://www.suse.com/security/cve/CVE-2025-71120.html

* https://www.suse.com/security/cve/CVE-2026-22999.html

* https://www.suse.com/security/cve/CVE-2026-23074.html

* https://www.suse.com/security/cve/CVE-2026-23209.html

* https://bugzilla.suse.com/show_bug.cgi?id=1252036

* https://bugzilla.suse.com/show_bug.cgi?id=1252689

* https://bugzilla.suse.com/show_bug.cgi?id=1256780

* https://bugzilla.suse.com/show_bug.cgi?id=1257238

* https://bugzilla.suse.com/show_bug.cgi?id=1258051

* https://bugzilla.suse.com/show_bug.cgi?id=1258784

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1242-1
Release Date: 2026-04-10T07:04:48Z
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 security issue important kernel system update OpenSUSE

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