Security update for the Linux Kernel

Announcement ID: SUSE-SU-2026:0688-1
Release Date: 2026-02-27T15:09:04Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-0920 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-0920 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-0920 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38177 ( 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-2025-38177 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38177 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Server 11 SP4
  • SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE

An update that solves two vulnerabilities can now be installed.

Description:

The SUSE Linux Enterprise 11 SP4 kernel was updated to fix various security issues

The following security issues were fixed:

  • CVE-2021-0920: net: split out functions related to registering inflight socket files (bsc#1193731).
  • CVE-2025-38177: sch_hfsc: make hfsc_qlen_notify() idempotent (bsc#1245986).

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 Enterprise Server 11 SP4 LTSS EXTREME CORE
    zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2026-688=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2026-688=1

Package List:

  • SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (nosrc x86_64)
    • kernel-default-3.0.101-108.201.1
    • kernel-trace-3.0.101-108.201.1
    • kernel-ec2-3.0.101-108.201.1
    • kernel-xen-3.0.101-108.201.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (x86_64)
    • kernel-default-debuginfo-3.0.101-108.201.1
    • kernel-default-devel-debuginfo-3.0.101-108.201.1
    • kernel-xen-debugsource-3.0.101-108.201.1
    • kernel-xen-devel-3.0.101-108.201.1
    • kernel-trace-debuginfo-3.0.101-108.201.1
    • kernel-ec2-base-3.0.101-108.201.1
    • kernel-ec2-debugsource-3.0.101-108.201.1
    • kernel-trace-devel-debuginfo-3.0.101-108.201.1
    • kernel-xen-base-3.0.101-108.201.1
    • kernel-default-devel-3.0.101-108.201.1
    • kernel-trace-base-3.0.101-108.201.1
    • kernel-source-3.0.101-108.201.1
    • kernel-syms-3.0.101-108.201.1
    • kernel-ec2-debuginfo-3.0.101-108.201.1
    • kernel-default-debugsource-3.0.101-108.201.1
    • kernel-default-base-3.0.101-108.201.1
    • kernel-trace-debugsource-3.0.101-108.201.1
    • kernel-trace-devel-3.0.101-108.201.1
    • kernel-ec2-devel-debuginfo-3.0.101-108.201.1
    • kernel-ec2-devel-3.0.101-108.201.1
    • kernel-xen-debuginfo-3.0.101-108.201.1
    • kernel-xen-devel-debuginfo-3.0.101-108.201.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (noarch nosrc)
    • kernel-docs-3.0.101-108.201.1
  • SUSE Linux Enterprise Server 11 SP4 (nosrc x86_64)
    • kernel-default-3.0.101-108.201.1
    • kernel-trace-3.0.101-108.201.1
    • kernel-ec2-3.0.101-108.201.1
    • kernel-xen-3.0.101-108.201.1
  • SUSE Linux Enterprise Server 11 SP4 (x86_64)
    • kernel-default-debuginfo-3.0.101-108.201.1
    • kernel-default-devel-debuginfo-3.0.101-108.201.1
    • kernel-xen-debugsource-3.0.101-108.201.1
    • kernel-xen-devel-3.0.101-108.201.1
    • kernel-trace-debuginfo-3.0.101-108.201.1
    • kernel-ec2-base-3.0.101-108.201.1
    • kernel-ec2-debugsource-3.0.101-108.201.1
    • kernel-trace-devel-debuginfo-3.0.101-108.201.1
    • kernel-xen-base-3.0.101-108.201.1
    • kernel-default-devel-3.0.101-108.201.1
    • kernel-trace-base-3.0.101-108.201.1
    • kernel-source-3.0.101-108.201.1
    • kernel-syms-3.0.101-108.201.1
    • kernel-ec2-debuginfo-3.0.101-108.201.1
    • kernel-default-debugsource-3.0.101-108.201.1
    • kernel-default-base-3.0.101-108.201.1
    • kernel-trace-debugsource-3.0.101-108.201.1
    • kernel-trace-devel-3.0.101-108.201.1
    • kernel-ec2-devel-debuginfo-3.0.101-108.201.1
    • kernel-ec2-devel-3.0.101-108.201.1
    • kernel-xen-debuginfo-3.0.101-108.201.1
    • kernel-xen-devel-debuginfo-3.0.101-108.201.1
  • SUSE Linux Enterprise Server 11 SP4 (noarch nosrc)
    • kernel-docs-3.0.101-108.201.1

References: