openSUSE 15 SP5 Kernel Significant Patch for CVE-2026-23074 CVE-2026-23209
opensuse
April 13, 2026
An update that solves two vulnerabilities can now be installed.
Description
This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.136 fixes
various security issues
The following security issues were fixed:
* 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).
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-2026-1258=1
* SUSE Linux Enterprise Live Patching 15-SP5
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-1258=1
Package List
* openSUSE Leap 15.5 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150500_55_136-default-3-150500.2.1
* kernel-livepatch-SLE15-SP5_Update_35-debugsource-3-150500.2.1
* kernel-livepatch-5_14_21-150500_55_136-default-debuginfo-3-150500.2.1
* SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150500_55_136-default-3-150500.2.1
* kernel-livepatch-SLE15-SP5_Update_35-debugsource-3-150500.2.1
* kernel-livepatch-5_14_21-150500_55_136-default-debuginfo-3-150500.2.1
References
* bsc#1258051
* bsc#1258784
## References:
* 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=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-2026:1258-1
Release Date: 2026-04-10T17:35:09Z
Affected Products:
* openSUSE Leap 15.5
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise Live Patching 15-SP5
* SUSE Linux Enterprise Micro 5.5
* SUSE Linux Enterprise Real Time 15 SP5
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
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