Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2026:1668-1
Release Date:	2026-05-01T08:37:57Z
Rating:	important
References:	bsc#1220186 bsc#1228031 bsc#1246057 bsc#1249522 bsc#1257221 bsc#1257773 bsc#1258280 bsc#1259770 bsc#1259797 bsc#1259865 bsc#1259870 bsc#1259889 bsc#1259997 bsc#1260009 bsc#1260489 bsc#1260536 bsc#1260551 bsc#1260730 bsc#1260799
Cross-References:	CVE-2024-26584 CVE-2025-38234 CVE-2025-39759 CVE-2025-71268 CVE-2025-71269 CVE-2026-22990 CVE-2026-23103 CVE-2026-23120 CVE-2026-23243 CVE-2026-23262 CVE-2026-23272 CVE-2026-23277 CVE-2026-23318 CVE-2026-23362 CVE-2026-23382 CVE-2026-23386 CVE-2026-23398
CVSS scores:	CVE-2024-26584 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2024-26584 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-38234 ( SUSE ): 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-38234 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-38234 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-39759 ( SUSE ): 7.1 CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:N/SA:N CVE-2025-39759 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2025-39759 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-71268 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-71268 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-71269 ( SUSE ): 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-71269 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-22990 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-22990 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-22990 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-22990 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-23103 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23103 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23103 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23103 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23120 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23120 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23120 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23243 ( 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-2026-23243 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23243 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23262 ( SUSE ): 5.8 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-23262 ( SUSE ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H CVE-2026-23272 ( 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-2026-23272 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23272 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23277 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23277 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-23318 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23318 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2026-23362 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23362 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23382 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23382 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23382 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23386 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23386 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23386 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23398 ( SUSE ): 5.9 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23398 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-23398 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Live Patching 12-SP5 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 12 SP5 LTSS SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves 17 vulnerabilities and has two security fixes can now be installed.

Description:

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2024-26584: net/tls: return ENOTSUPP on tls_init() (bsc#1220186).
• CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
• CVE-2025-39759: btrfs: qgroup: fix race between quota disable and quota rescan ioctl (bsc#1249522).
• CVE-2025-71268: btrfs: fix reservation leak in some error paths when inserting inline extent (bsc#1259865).
• CVE-2025-71269: btrfs: do not free data reservation in fallback from inline due to -ENOSPC (bsc#1259889).
• CVE-2026-22990: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (bsc#1257221).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23262: gve: Fix stats report corruption on queue count change (bsc#1259870).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set-nelems before insertion (bsc#1260009).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23318: ALSA: usb-audio: Use correct version for UAC3 header validation (bsc#1260536).
• CVE-2026-23362: can: bcm: fix locking for bcm_op runtime updates (bsc#1260489).
• CVE-2026-23382: HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them (bsc#1260551).
• CVE-2026-23386: gve: fix incorrect buffer cleanup in gve_tx_clean_pending_packets for QPL (bsc#1260799).
• CVE-2026-23398: icmp: fix NULL pointer dereference in icmp_tag_validation() (bsc#1260730).

The following non security issues were fixed:

• btrfs: fix processing of delayed data refs during backref walking (bsc#1228031).
• fs: skip superblock shrink on frozen xfs filesystems (bsc#1259770).

Special Instructions and Notes:

• Please reboot the system after installing this update.

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 Server 12 SP5 LTSS
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-1668=1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-1668=1
• SUSE Linux Enterprise Live Patching 12-SP5
  zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2026-1668=1

Package List:

• SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • gfs2-kmp-default-debuginfo-4.12.14-122.299.1
  • kernel-default-base-4.12.14-122.299.1
  • dlm-kmp-default-debuginfo-4.12.14-122.299.1
  • kernel-default-devel-4.12.14-122.299.1
  • ocfs2-kmp-default-debuginfo-4.12.14-122.299.1
  • kernel-default-base-debuginfo-4.12.14-122.299.1
  • kernel-default-debugsource-4.12.14-122.299.1
  • kernel-syms-4.12.14-122.299.1
  • cluster-md-kmp-default-debuginfo-4.12.14-122.299.1
  • cluster-md-kmp-default-4.12.14-122.299.1
  • ocfs2-kmp-default-4.12.14-122.299.1
  • gfs2-kmp-default-4.12.14-122.299.1
  • kernel-default-debuginfo-4.12.14-122.299.1
  • dlm-kmp-default-4.12.14-122.299.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64 nosrc)
  • kernel-default-4.12.14-122.299.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
  • kernel-source-4.12.14-122.299.1
  • kernel-macros-4.12.14-122.299.1
  • kernel-devel-4.12.14-122.299.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (s390x)
  • kernel-default-man-4.12.14-122.299.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (x86_64)
  • kernel-default-devel-debuginfo-4.12.14-122.299.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
  • gfs2-kmp-default-debuginfo-4.12.14-122.299.1
  • kernel-default-base-4.12.14-122.299.1
  • dlm-kmp-default-debuginfo-4.12.14-122.299.1
  • kernel-default-devel-4.12.14-122.299.1
  • kernel-default-devel-debuginfo-4.12.14-122.299.1
  • ocfs2-kmp-default-debuginfo-4.12.14-122.299.1
  • kernel-default-base-debuginfo-4.12.14-122.299.1
  • kernel-default-debugsource-4.12.14-122.299.1
  • kernel-syms-4.12.14-122.299.1
  • cluster-md-kmp-default-debuginfo-4.12.14-122.299.1
  • cluster-md-kmp-default-4.12.14-122.299.1
  • ocfs2-kmp-default-4.12.14-122.299.1
  • gfs2-kmp-default-4.12.14-122.299.1
  • kernel-default-debuginfo-4.12.14-122.299.1
  • dlm-kmp-default-4.12.14-122.299.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (nosrc x86_64)
  • kernel-default-4.12.14-122.299.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
  • kernel-source-4.12.14-122.299.1
  • kernel-macros-4.12.14-122.299.1
  • kernel-devel-4.12.14-122.299.1
• SUSE Linux Enterprise Live Patching 12-SP5 (nosrc)
  • kernel-default-4.12.14-122.299.1
• SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
  • kernel-default-kgraft-devel-4.12.14-122.299.1
  • kgraft-patch-4_12_14-122_299-default-1-8.3.1
  • kernel-default-debugsource-4.12.14-122.299.1
  • kernel-default-kgraft-4.12.14-122.299.1
  • kernel-default-debuginfo-4.12.14-122.299.1

References:

• https://www.suse.com/security/cve/CVE-2024-26584.html
• https://www.suse.com/security/cve/CVE-2025-38234.html
• https://www.suse.com/security/cve/CVE-2025-39759.html
• https://www.suse.com/security/cve/CVE-2025-71268.html
• https://www.suse.com/security/cve/CVE-2025-71269.html
• https://www.suse.com/security/cve/CVE-2026-22990.html
• https://www.suse.com/security/cve/CVE-2026-23103.html
• https://www.suse.com/security/cve/CVE-2026-23120.html
• https://www.suse.com/security/cve/CVE-2026-23243.html
• https://www.suse.com/security/cve/CVE-2026-23262.html
• https://www.suse.com/security/cve/CVE-2026-23272.html
• https://www.suse.com/security/cve/CVE-2026-23277.html
• https://www.suse.com/security/cve/CVE-2026-23318.html
• https://www.suse.com/security/cve/CVE-2026-23362.html
• https://www.suse.com/security/cve/CVE-2026-23382.html
• https://www.suse.com/security/cve/CVE-2026-23386.html
• https://www.suse.com/security/cve/CVE-2026-23398.html
• https://bugzilla.suse.com/show_bug.cgi?id=1220186
• https://bugzilla.suse.com/show_bug.cgi?id=1228031
• https://bugzilla.suse.com/show_bug.cgi?id=1246057
• https://bugzilla.suse.com/show_bug.cgi?id=1249522
• https://bugzilla.suse.com/show_bug.cgi?id=1257221
• https://bugzilla.suse.com/show_bug.cgi?id=1257773
• https://bugzilla.suse.com/show_bug.cgi?id=1258280
• https://bugzilla.suse.com/show_bug.cgi?id=1259770
• https://bugzilla.suse.com/show_bug.cgi?id=1259797
• https://bugzilla.suse.com/show_bug.cgi?id=1259865
• https://bugzilla.suse.com/show_bug.cgi?id=1259870
• https://bugzilla.suse.com/show_bug.cgi?id=1259889
• https://bugzilla.suse.com/show_bug.cgi?id=1259997
• https://bugzilla.suse.com/show_bug.cgi?id=1260009
• https://bugzilla.suse.com/show_bug.cgi?id=1260489
• https://bugzilla.suse.com/show_bug.cgi?id=1260536
• https://bugzilla.suse.com/show_bug.cgi?id=1260551
• https://bugzilla.suse.com/show_bug.cgi?id=1260730
• https://bugzilla.suse.com/show_bug.cgi?id=1260799