SUSE-SU-2026:1668-1: important: Security update for the Linux Kernel

SLE-UPDATES null at suse.de
Fri May 1 16:30:36 UTC 2026 


# 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

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