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openSUSE Leap 15.4: Kernel Important Security Update 2025:03543-1

opensuse
Calendar Grey October 13, 2025
Dist Opensuse Esm H88
This update resolves important issues in the Linux Kernel for openSUSE, addressing multiple security threats.
An update that solves four vulnerabilities can now be installed.

Description

This update for the Linux Kernel 5.14.21-150400_24_150 fixes several issues.

The following security issues were fixed:

* CVE-2024-53168: sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket

(bsc#1243650).

* CVE-2025-38477: net/sched: sch_qfq: Fix race condition on qfq_aggregate

(bsc#1247315).

* CVE-2025-21791: vrf: use RCU protection in l3mdev_l3_out() (bsc#1240744).

* CVE-2025-21692: net: sched: fix ets qdisc OOB Indexing (bsc#1237048).

Topics%20covered

Topics Covered

security advisory remote access DoS 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-2025-3543=1 SUSE-2025-3544=1 SUSE-2025-3542=1

* SUSE Linux Enterprise Live Patching 15-SP4

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2025-3543=1 SUSE-SLE-

Module-Live-Patching-15-SP4-2025-3544=1 SUSE-SLE-Module-Live-

Patching-15-SP4-2025-3542=1

Package List

* openSUSE Leap 15.4 (ppc64le s390x x86_64)

* kernel-livepatch-SLE15-SP4_Update_36-debugsource-8-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_34-debugsource-14-150400.2.1

* kernel-livepatch-5_14_21-150400_24_144-default-debuginfo-14-150400.2.1

* kernel-livepatch-5_14_21-150400_24_144-default-14-150400.2.1

* kernel-livepatch-5_14_21-150400_24_147-default-debuginfo-13-150400.2.1

* kernel-livepatch-5_14_21-150400_24_150-default-8-150400.2.1

* kernel-livepatch-5_14_21-150400_24_150-default-debuginfo-8-150400.2.1

* kernel-livepatch-5_14_21-150400_24_147-default-13-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_35-debugsource-13-150400.2.1

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

* kernel-livepatch-SLE15-SP4_Update_36-debugsource-8-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_34-debugsource-14-150400.2.1

* kernel-livepatch-5_14_21-150400_24_144-default-debuginfo-14-150400.2.1

* kernel-livepatch-5_14_21-150400_24_144-default-14-150400.2.1

*...

Read the Full Advisory

References

* bsc#1237048

* bsc#1240744

* bsc#1243650

* bsc#1247315

## References:

* https://www.suse.com/security/cve/CVE-2024-53168.html

* https://www.suse.com/security/cve/CVE-2025-21692.html

* https://www.suse.com/security/cve/CVE-2025-21791.html

* https://www.suse.com/security/cve/CVE-2025-38477.html

* https://bugzilla.suse.com/show_bug.cgi?id=1237048

* https://bugzilla.suse.com/show_bug.cgi?id=1240744

* https://bugzilla.suse.com/show_bug.cgi?id=1243650

* https://bugzilla.suse.com/show_bug.cgi?id=1247315

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:03543-1
Release Date: 2025-10-10T23:33:51Z
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 remote access DoS important kernel OpenSUSE

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