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openSUSE 15 SP4 Kernel Important Update CVE-2026-1281-1

opensuse
Calendar Grey April 13, 2026
Dist Opensuse Esm H88
An important security advisory discusses fixes for six kernel vulnerabilities in openSUSE, enhancing system stability and security.
An update that solves six vulnerabilities can now be installed.

Description

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.170 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 denial of service security issue important kernel 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 15.4

zypper in -t patch SUSE-2026-1281=1

* SUSE Linux Enterprise Live Patching 15-SP4

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1281=1

Package List

* openSUSE Leap 15.4 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150400_24_170-default-14-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_42-debugsource-14-150400.2.1

* kernel-livepatch-5_14_21-150400_24_170-default-debuginfo-14-150400.2.1

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

* kernel-livepatch-5_14_21-150400_24_170-default-14-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_42-debugsource-14-150400.2.1

* kernel-livepatch-5_14_21-150400_24_170-default-debuginfo-14-150400.2.1

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-2026:1281-1
Release Date: 2026-04-12T08:35:33Z
Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise Live Patching 15-SP4 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Real Time 15 SP4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP4

Topics%20covered

Topics Covered

security advisory denial of service security issue important kernel OpenSUSE

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