Security update for the Linux Kernel (Live Patch 10 for SUSE Linux Enterprise 15 SP6)

Announcement ID:	SUSE-SU-2026:1239-1
Release Date:	2026-04-09T19:04:34Z
Rating:	important
References:	bsc#1252036 bsc#1252689 bsc#1253404 bsc#1256780 bsc#1257238 bsc#1258051 bsc#1258183 bsc#1258784
Cross-References:	CVE-2025-39973 CVE-2025-40018 CVE-2025-40159 CVE-2025-71120 CVE-2026-22999 CVE-2026-23074 CVE-2026-23111 CVE-2026-23209
CVSS scores:	CVE-2025-39973 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-39973 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-40018 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-40018 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-40159 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-40159 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-71120 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-71120 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2025-71120 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-22999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-22999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-22999 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23074 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-23074 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23074 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23074 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23111 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-23111 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23111 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23111 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23209 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-23209 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23209 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23209 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.6 SUSE Linux Enterprise Live Patching 15-SP6 SUSE Linux Enterprise Real Time 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that solves eight vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.47 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-2025-40159: xsk: Harden userspace-supplied xdp_desc validation (bsc#1253404).
• 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-2026-23111: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() (bsc#1258183).
• CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink() (bsc#1258784).

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 15.6
  zypper in -t patch SUSE-2026-1239=1 SUSE-2026-1238=1
• SUSE Linux Enterprise Live Patching 15-SP6
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-1239=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-1238=1

Package List:

• openSUSE Leap 15.6 (ppc64le s390x x86_64)
  • kernel-livepatch-6_4_0-150600_23_50-default-debuginfo-14-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_47-default-debuginfo-15-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_50-default-14-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_10-debugsource-15-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_47-default-15-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_11-debugsource-14-150600.2.1
• SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
  • kernel-livepatch-6_4_0-150600_23_50-default-debuginfo-14-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_47-default-debuginfo-15-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_50-default-14-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_10-debugsource-15-150600.2.1
  • kernel-livepatch-6_4_0-150600_23_47-default-15-150600.2.1
  • kernel-livepatch-SLE15-SP6_Update_11-debugsource-14-150600.2.1

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-2025-40159.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-2026-23111.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=1253404
• 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=1258183
• https://bugzilla.suse.com/show_bug.cgi?id=1258784