SUSE-SU-2025:03106-1: important: Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP7)

[SLE-UPDATES]

# Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP7)

Announcement ID: SUSE-SU-2025:03106-1  
Release Date: 2025-09-08T21:13:22Z  
Rating: important  
References:

  * bsc#1244235
  * bsc#1245505
  * bsc#1245775
  * bsc#1245791
  * bsc#1246030
  * bsc#1248108

  
Cross-References:

  * CVE-2025-37890
  * CVE-2025-38000
  * CVE-2025-38001
  * CVE-2025-38087
  * CVE-2025-38212

  
CVSS scores:

  * CVE-2025-37890 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38000 ( 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-2025-38000 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38001 ( 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-2025-38001 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38087 ( 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-2025-38087 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-38212 ( 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-2025-38212 ( 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-SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves five vulnerabilities and has one security fix can now be
installed.

## Description:

This update for the Linux Kernel 6.4.0-150700_5 fixes several issues.

The following security issues were fixed:

  * CVE-2025-38087: net/sched: fix use-after-free in taprio_dev_notifier
    (bsc#1245504).
  * CVE-2025-38001: net_sched: hfsc: Address reentrant enqueue adding class to
    eltree twice (bsc#1244235).
  * CVE-2025-38000: sch_hfsc: Fix qlen accounting bug when using peek in
    hfsc_enqueue() (bsc#1245775).
  * CVE-2025-37890: net_sched: hfsc: Fix a UAF vulnerability in class with netem
    as child qdisc (bsc#1245791).
  * CVE-2025-38212: ipc: fix to protect IPCS lookups using RCU (bsc#1246030).

## 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-SP7  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2025-3106=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP7 (x86_64)
    * kernel-livepatch-SLE15-SP7-RT_Update_0-debugsource-3-150700.3.1
    * kernel-livepatch-6_4_0-150700_5-rt-debuginfo-3-150700.3.1
    * kernel-livepatch-6_4_0-150700_5-rt-3-150700.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-37890.html
  * https://www.suse.com/security/cve/CVE-2025-38000.html
  * https://www.suse.com/security/cve/CVE-2025-38001.html
  * https://www.suse.com/security/cve/CVE-2025-38087.html
  * https://www.suse.com/security/cve/CVE-2025-38212.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1244235
  * https://bugzilla.suse.com/show_bug.cgi?id=1245505
  * https://bugzilla.suse.com/show_bug.cgi?id=1245775
  * https://bugzilla.suse.com/show_bug.cgi?id=1245791
  * https://bugzilla.suse.com/show_bug.cgi?id=1246030
  * https://bugzilla.suse.com/show_bug.cgi?id=1248108

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