SUSE-SU-2025:03317-1: important: Security update for the Linux Kernel RT (Live Patch 7 for SLE 15 SP6)

Wed Sep 24 08:30:27 UTC 2025

# Security update for the Linux Kernel RT (Live Patch 7 for SLE 15 SP6)

Announcement ID: SUSE-SU-2025:03317-1  
Release Date: 2025-09-24T03:04:02Z  
Rating: important  
References:

  * bsc#1245685
  * bsc#1245795
  * bsc#1246001
  * bsc#1246356
  * bsc#1247499
  * bsc#1248298

Cross-References:

  * CVE-2025-21756
  * CVE-2025-38109
  * CVE-2025-38177
  * CVE-2025-38181
  * CVE-2025-38498
  * CVE-2025-38555

CVSS scores:

  * CVE-2025-21756 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-21756 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38109 ( 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-2025-38109 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38177 ( 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-2025-38177 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38181 ( 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-2025-38181 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-38498 ( 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-2025-38498 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38555 ( 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-2025-38555 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

  * 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 six vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 6.4.0-150600_10_23 fixes several issues.

The following security issues were fixed:

  * CVE-2025-38177: sch_hfsc: make hfsc_qlen_notify() idempotent (bsc#1246356).
  * CVE-2025-38109: net/mlx5: fix ECVF vports unload on shutdown flow
    (bsc#1245685).
  * CVE-2025-38181: calipso: Fix null-ptr-deref in calipso_req_{set,del}attr()
    (bsc#1246001).
  * CVE-2025-21756: vsock: Keep the binding until socket destruction
    (bsc#1245795).
  * CVE-2025-21755: vsock: Orphan socket after transport release (bsc#1245795).
  * CVE-2025-38498: do_change_type(): refuse to operate on unmounted/not ours
    mounts (bsc#1247499).
  * CVE-2025-38555: usb: gadget : fix use-after-free in composite_dev_cleanup()
    (bsc#1248298).

## 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-SP6  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2025-3317=1 SUSE-SLE-
Module-Live-Patching-15-SP6-2025-3327=1 SUSE-SLE-Module-Live-
Patching-15-SP6-2025-3324=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP6 (x86_64)
    * kernel-livepatch-SLE15-SP6-RT_Update_4-debugsource-16-150600.2.2
    * kernel-livepatch-SLE15-SP6-RT_Update_6-debugsource-12-150600.2.2
    * kernel-livepatch-6_4_0-150600_10_14-rt-16-150600.2.2
    * kernel-livepatch-6_4_0-150600_10_23-rt-debuginfo-12-150600.2.2
    * kernel-livepatch-6_4_0-150600_10_20-rt-12-150600.2.2
    * kernel-livepatch-6_4_0-150600_10_14-rt-debuginfo-16-150600.2.2
    * kernel-livepatch-6_4_0-150600_10_20-rt-debuginfo-12-150600.2.2
    * kernel-livepatch-6_4_0-150600_10_23-rt-12-150600.2.2
    * kernel-livepatch-SLE15-SP6-RT_Update_7-debugsource-12-150600.2.2

## References:

  * https://www.suse.com/security/cve/CVE-2025-21756.html
  * https://www.suse.com/security/cve/CVE-2025-38109.html
  * https://www.suse.com/security/cve/CVE-2025-38177.html
  * https://www.suse.com/security/cve/CVE-2025-38181.html
  * https://www.suse.com/security/cve/CVE-2025-38498.html
  * https://www.suse.com/security/cve/CVE-2025-38555.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1245685
  * https://bugzilla.suse.com/show_bug.cgi?id=1245795
  * https://bugzilla.suse.com/show_bug.cgi?id=1246001
  * https://bugzilla.suse.com/show_bug.cgi?id=1246356
  * https://bugzilla.suse.com/show_bug.cgi?id=1247499
  * https://bugzilla.suse.com/show_bug.cgi?id=1248298

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