SUSE-SU-2025:3679-1: important: Security update for the Linux Kernel (Live Patch 37 for SLE 15 SP4)

Mon Oct 20 12:30:32 UTC 2025

# Security update for the Linux Kernel (Live Patch 37 for SLE 15 SP4)

Announcement ID: SUSE-SU-2025:3679-1  
Release Date: 2025-10-20T10:33:58Z  
Rating: important  
References:

  * bsc#1245794
  * bsc#1246075
  * bsc#1248673
  * bsc#1248749
  * bsc#1249534

Cross-References:

  * CVE-2025-21971
  * CVE-2025-38206
  * CVE-2025-38499
  * CVE-2025-38644
  * CVE-2025-38678

CVSS scores:

  * CVE-2025-21971 ( 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-2025-21971 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38206 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-38206 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38499 ( SUSE ):  6.2
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H
  * CVE-2025-38499 ( SUSE ):  8.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
  * CVE-2025-38644 ( 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-2025-38644 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38678 ( SUSE ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected Products:

  * openSUSE Leap 15.4
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise Live Patching 15-SP4
  * SUSE Linux Enterprise Micro 5.3
  * SUSE Linux Enterprise Micro 5.4
  * SUSE Linux Enterprise Real Time 15 SP4
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that solves five vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.14.21-150400_24_153 fixes several issues.

The following security issues were fixed:

  * CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates
    (bsc#1249534).
  * CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN
    in the right userns (bsc#1248673).
  * CVE-2025-21971: net_sched: Prevent creation of classes with TC_H_ROOT
    (bsc#1245794).
  * CVE-2025-38644: wifi: mac80211: reject TDLS operations when station is not
    associated (bsc#1248749).
  * CVE-2025-38206: exfat: fix double free in delayed_free (bsc#1246075).

## 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 Live Patching 15-SP4  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2025-3679=1 SUSE-SLE-
Module-Live-Patching-15-SP4-2025-3680=1

  * openSUSE Leap 15.4  
    zypper in -t patch SUSE-2025-3680=1 SUSE-2025-3679=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
    * kernel-livepatch-5_14_21-150400_24_153-default-debuginfo-9-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_34-debugsource-15-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_144-default-debuginfo-15-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_37-debugsource-9-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_153-default-9-150400.2.1
  * openSUSE Leap 15.4 (ppc64le s390x x86_64)
    * kernel-livepatch-5_14_21-150400_24_153-default-debuginfo-9-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_34-debugsource-15-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_144-default-debuginfo-15-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_37-debugsource-9-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_153-default-9-150400.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-21971.html
  * https://www.suse.com/security/cve/CVE-2025-38206.html
  * https://www.suse.com/security/cve/CVE-2025-38499.html
  * https://www.suse.com/security/cve/CVE-2025-38644.html
  * https://www.suse.com/security/cve/CVE-2025-38678.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1245794
  * https://bugzilla.suse.com/show_bug.cgi?id=1246075
  * https://bugzilla.suse.com/show_bug.cgi?id=1248673
  * https://bugzilla.suse.com/show_bug.cgi?id=1248749
  * https://bugzilla.suse.com/show_bug.cgi?id=1249534

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