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Linux Kernel Update Fixes Multiple Security Risks in SUSE Linux Enterprise 15 SP5
SUSE-SU-2026:1222-1
Summary
This update addresses six security risks in the Linux Kernel for SUSE Linux Enterprise 15 SP5. If left unpatched, these vulnerabilities could allow attackers to disrupt network services, gain unauthorized access, or inject malicious code into the system. Apply the latest update to ensure the security and stability of your system.
What to do
- Update kernel-livepatch-sle15-sp4_update_43 to version 11-150400.2.1.
- Update kernel-livepatch-sle15-sp5_update_31 to version 7-150500.2.1.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| – | kernel-livepatch-sle15-sp4_update_43 | <= 11-150400.2.1 | 11-150400.2.1 |
| – | kernel-livepatch-sle15-sp5_update_31 | <= 7-150500.2.1 | 7-150500.2.1 |
Original title
Security update for the Linux Kernel (Live Patch 31 for SUSE Linux Enterprise 15 SP5)
Original description
This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.124 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).
- https://www.suse.com/support/update/announcement/2026/suse-su-20261222-1/ Vendor Advisory
- https://bugzilla.suse.com/1252036 Third Party Advisory
- https://bugzilla.suse.com/1252689 Third Party Advisory
- https://bugzilla.suse.com/1256780 Third Party Advisory
- https://bugzilla.suse.com/1257238 Third Party Advisory
- https://bugzilla.suse.com/1258051 Third Party Advisory
- https://bugzilla.suse.com/1258784 Third Party Advisory
- https://www.suse.com/security/cve/CVE-2025-39973 URL
- https://www.suse.com/security/cve/CVE-2025-40018 URL
- https://www.suse.com/security/cve/CVE-2025-71120 URL
- https://www.suse.com/security/cve/CVE-2026-22999 URL
- https://www.suse.com/security/cve/CVE-2026-23074 URL
- https://www.suse.com/security/cve/CVE-2026-23209 URL
Published: 8 Apr 2026 · Updated: 10 Apr 2026 · First seen: 10 Apr 2026