SUSE-SU-2026:21938-1: important: Security update for the Linux Kernel (Live Patch 14 for SUSE Linux Enterprise Micro 6.0)

Tue Jun 2 16:36:48 UTC 2026

# Security update for the Linux Kernel (Live Patch 14 for SUSE Linux Enterprise
Micro 6.0)

Announcement ID: SUSE-SU-2026:21938-1  
Release Date: 2026-06-01T09:26:53Z  
Rating: important  
References:

  * bsc#1259798
  * bsc#1260563
  * bsc#1260908
  * bsc#1264096
  * bsc#1265224
  * bsc#1265384

Cross-References:

  * CVE-2025-54518
  * CVE-2026-23243
  * CVE-2026-23274
  * CVE-2026-23317
  * CVE-2026-46300
  * CVE-2026-46333

CVSS scores:

  * CVE-2025-54518 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-54518 ( SUSE ):  7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-54518 ( NVD ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-23243 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-23243 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23243 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23274 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-23274 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23274 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23317 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-23317 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23317 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46300 ( SUSE ):  8.6
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-46300 ( SUSE ):  8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-46300 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46300 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * 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

An update that solves six vulnerabilities can now be installed.

## Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-38.1 fixes various
security issues

The following security issues were fixed:

  * CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096).
  * CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write
    (bsc#1259798).
  * CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer
    labels (bsc#1260908).
  * CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr
    functions (bsc#1260563).
  * CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit
    (bsc#1265224).
  * CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).

## 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-458=1

## Package List:

  * SUSE Linux Micro 6.0 (s390x x86_64)
    * kernel-livepatch-6_4_0-38-default-debuginfo-7-1.2
    * kernel-livepatch-6_4_0-38-default-7-1.2
    * kernel-livepatch-MICRO-6-0_Update_14-debugsource-7-1.2

## References:

  * https://www.suse.com/security/cve/CVE-2025-54518.html
  * https://www.suse.com/security/cve/CVE-2026-23243.html
  * https://www.suse.com/security/cve/CVE-2026-23274.html
  * https://www.suse.com/security/cve/CVE-2026-23317.html
  * https://www.suse.com/security/cve/CVE-2026-46300.html
  * https://www.suse.com/security/cve/CVE-2026-46333.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1259798
  * https://bugzilla.suse.com/show_bug.cgi?id=1260563
  * https://bugzilla.suse.com/show_bug.cgi?id=1260908
  * https://bugzilla.suse.com/show_bug.cgi?id=1264096
  * https://bugzilla.suse.com/show_bug.cgi?id=1265224
  * https://bugzilla.suse.com/show_bug.cgi?id=1265384

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