openSUSE 2026 Kernel Important Security Update ID 1237-1
opensuse
April 10, 2026
An update that solves four vulnerabilities can now be installed.
Description
This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.187 fixes
various security issues
The following security issues were fixed:
* 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 Covered
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-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1237=1
* openSUSE Leap 15.4
zypper in -t patch SUSE-2026-1237=1
Package List
* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150400_24_187-default-debuginfo-4-150400.2.1
* kernel-livepatch-5_14_21-150400_24_187-default-4-150400.2.1
* kernel-livepatch-SLE15-SP4_Update_47-debugsource-4-150400.2.1
* openSUSE Leap 15.4 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150400_24_187-default-debuginfo-4-150400.2.1
* kernel-livepatch-5_14_21-150400_24_187-default-4-150400.2.1
* kernel-livepatch-SLE15-SP4_Update_47-debugsource-4-150400.2.1
References
* bsc#1256780
* bsc#1257238
* bsc#1258051
* bsc#1258784
## References:
* 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=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
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Severity
important
Lowest
Low
Medium
High
Critical
Announcement ID: SUSE-SU-2026:1237-1
Release Date: 2026-04-09T17:05:00Z
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 Covered
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