SUSE alert SUSE-SU-2026:21442-1 (kernel)

From:
             
 
SLE-SECURITY-UPDATES <null@suse.de>
To:
             
 
sle-security-updates@lists.suse.com
Subject:
             
 
SUSE-SU-2026:21442-1: important: Security update for the Linux Kernel
Date:
             
 
Mon, 04 May 2026 08:34:59 -0000
Message-ID:
             
 
<177788369918.1375.9114401751506832938@dde0e951fc7e>


# Security update for the Linux Kernel

Announcement ID: SUSE-SU-2026:21442-1  
Release Date: 2026-05-01T21:55:29Z  
Rating: important  
References:

  * bsc#1262573

  
Cross-References:

  * CVE-2026-31431

  
CVSS scores:

  * CVE-2026-31431 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31431 ( NVD ):  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 Micro 6.0

  
  
An update that solves one vulnerability can now be installed.

## Description:

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix one
security issue

The following security issue was fixed:

  * CVE-2026-31431: The copy.fail security issue is fixed by revert to operating
    out-of-place in algif_aead (bsc#1262573).

## Special Instructions and Notes:

  * Please reboot the system after installing this update.

## 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 Micro 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-kernel-368=1

## Package List:

  * SUSE Linux Micro 6.0 (aarch64 x86_64)
    * kernel-default-base-6.4.0-42.1.21.19
  * SUSE Linux Micro 6.0 (noarch)
    * kernel-macros-6.4.0-42.1
    * kernel-devel-6.4.0-42.1
    * kernel-source-6.4.0-42.1
  * SUSE Linux Micro 6.0 (aarch64 nosrc s390x x86_64)
    * kernel-default-6.4.0-42.1
  * SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
    * kernel-default-debugsource-6.4.0-42.1
    * kernel-default-debuginfo-6.4.0-42.1
  * SUSE Linux Micro 6.0 (s390x x86_64)
    * kernel-default-livepatch-6.4.0-42.1
  * SUSE Linux Micro 6.0 (nosrc x86_64)
    * kernel-kvmsmall-6.4.0-42.1
  * SUSE Linux Micro 6.0 (x86_64)
    * kernel-kvmsmall-debugsource-6.4.0-42.1
    * kernel-kvmsmall-debuginfo-6.4.0-42.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-31431.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1262573



Attachment: None (type=text/html)
(HTML attachment elided)