SUSE-SU-2026:21720-1: important: Security update for the Linux Kernel

[SLE-UPDATES]

# Security update for the Linux Kernel

Announcement ID: SUSE-SU-2026:21720-1  
Release Date: 2026-05-19T14:37:50Z  
Rating: important  
References:

  * bsc#1265308

  
Cross-References:

  * CVE-2026-46333

  
CVSS scores:

  * CVE-2026-46333 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46333 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-46333 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

  
Affected Products:

  * SUSE Linux Micro 6.0
  * SUSE Linux Micro Extras 6.0

  
  
An update that solves one vulnerability can now be installed.

## Description:

The SUSE Linux Enterprise Micro 6.0 and 6.1 RT kernel was updated to receive
various security bugfixes.

The following security bugs were fixed:

  * CVE-2026-46333:ptrace: slightly saner 'get_dumpable()' logic (bsc#1265308).

## 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 Extras 6.0  
    zypper in -t patch SUSE-SLE-Micro-Extras-6.0-kernel-431=1

## Package List:

  * SUSE Linux Micro Extras 6.0 (nosrc)
    * kernel-rt-6.4.0-46.1
  * SUSE Linux Micro Extras 6.0 (x86_64)
    * kernel-rt-debugsource-6.4.0-46.1
    * kernel-rt-devel-debuginfo-6.4.0-46.1
    * kernel-rt-devel-6.4.0-46.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-46333.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1265308

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