Security update for kernel-livepatch-MICRO-6-0_Update_9

Announcement ID: SUSE-SU-2025:20616-1
Release Date: 2025-08-25T12:16:44Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-21702 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-37752 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-37797 ( SUSE ): 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 6.1

An update that solves three vulnerabilities and has one fix can now be installed.

Description:

This update for kernel-livepatch-MICRO-6-0_Update_9 fixes the following issues:

  • CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1245776)
  • CVE-2025-37797: net_sched: hfsc: Fix a UAF vulnerability in class handling (bsc#1245793)
  • CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (bsc#1245797)

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 6.1
    zypper in -t patch SUSE-SLE-Micro-6.1-kernel-80=1

Package List:

  • SUSE Linux Micro 6.1 (s390x x86_64)
    • kernel-livepatch-6_4_0-31-default-2-1.2
    • kernel-livepatch-6_4_0-31-default-debuginfo-2-1.2
    • kernel-livepatch-MICRO-6-0_Update_9-debugsource-2-1.2

References: