SUSE-SU-2025:4275-1: important: Security update for the Linux Kernel (Live Patch 15 for SUSE Linux Enterprise 15 SP6)

[SLE-SECURITY-UPDATES]

# Security update for the Linux Kernel (Live Patch 15 for SUSE Linux Enterprise
15 SP6)

Announcement ID: SUSE-SU-2025:4275-1  
Release Date: 2025-11-27T10:04:14Z  
Rating: important  
References:

  * bsc#1249537

  
Cross-References:

  * CVE-2025-38616

  
CVSS scores:

  * CVE-2025-38616 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2025-38616 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.6
  * 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 one vulnerability can now be installed.

## Description:

This update for the SUSE Linux Enterprise kernel 6.4.0-150600.23.70 fixes one
security issue

The following security issue was fixed:

  * CVE-2025-38616: tls: handle data disappearing from under the TLS ULP
    (bsc#1249537).

## 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:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2025-4275=1

  * SUSE Linux Enterprise Live Patching 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2025-4275=1

## Package List:

  * openSUSE Leap 15.6 (ppc64le s390x x86_64)
    * kernel-livepatch-SLE15-SP6_Update_15-debugsource-4-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-4-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-debuginfo-4-150600.2.1
  * SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
    * kernel-livepatch-SLE15-SP6_Update_15-debugsource-4-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-4-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-debuginfo-4-150600.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-38616.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1249537

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