# Security update for the Linux Kernel RT (Live Patch 16 for SLE 15 SP5)

Announcement ID: SUSE-SU-2024:3319-1  
Rating: important  
References:

  * bsc#1223683
  * bsc#1225099
  * bsc#1228349

  
Cross-References:

  * CVE-2023-52846
  * CVE-2024-26923
  * CVE-2024-40909

  
CVSS scores:

  * CVE-2023-52846 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-26923 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-40909 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-40909 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise Live Patching 15-SP5
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Real Time 15 SP5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.14.21-150500_13_58 fixes several issues.

The following security issues were fixed:

  * CVE-2024-40909: Fix a potential use-after-free in bpf_link_free()
    (bsc#1228349).
  * CVE-2023-52846: Prevent use after free in prp_create_tagged_frame()
    (bsc#1225099).
  * CVE-2024-26923: Fixed false-positive lockdep splat for spin_lock() in
    __unix_gc() (bsc#1223683).

## 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 15.5  
    zypper in -t patch SUSE-2024-3319=1

  * SUSE Linux Enterprise Live Patching 15-SP5  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2024-3319=1

## Package List:

  * openSUSE Leap 15.5 (x86_64)
    * kernel-livepatch-SLE15-SP5-RT_Update_16-debugsource-3-150500.11.6.1
    * kernel-livepatch-5_14_21-150500_13_58-rt-debuginfo-3-150500.11.6.1
    * kernel-livepatch-5_14_21-150500_13_58-rt-3-150500.11.6.1
  * SUSE Linux Enterprise Live Patching 15-SP5 (x86_64)
    * kernel-livepatch-SLE15-SP5-RT_Update_16-debugsource-3-150500.11.6.1
    * kernel-livepatch-5_14_21-150500_13_58-rt-debuginfo-3-150500.11.6.1
    * kernel-livepatch-5_14_21-150500_13_58-rt-3-150500.11.6.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-52846.html
  * https://www.suse.com/security/cve/CVE-2024-26923.html
  * https://www.suse.com/security/cve/CVE-2024-40909.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1223683
  * https://bugzilla.suse.com/show_bug.cgi?id=1225099
  * https://bugzilla.suse.com/show_bug.cgi?id=1228349