Security update for the Linux Kernel (Live Patch 1 for SUSE Linux Enterprise 16)

Announcement ID: SUSE-SU-2026:20606-1
Release Date: 2026-02-18T16:13:19Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-40186 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-40186 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise Server 16.0
  • SUSE Linux Enterprise Server for SAP Applications 16.0

An update that solves one vulnerability can now be installed.

Description:

This update for the SUSE Linux Enterprise kernel 6.12.0-160000.6.1 fixes one security issue

The following security issue was fixed:

  • CVE-2025-40186: tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request() (bsc#1253439).

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 16.0
    zypper in -t patch SUSE-SLES-16.0-297=1
  • SUSE Linux Enterprise Server for SAP Applications 16.0
    zypper in -t patch SUSE-SLES-16.0-297=1

Package List:

  • SUSE Linux Enterprise Server 16.0 (ppc64le s390x x86_64)
    • kernel-livepatch-SLE16_Update_1-debugsource-4-160000.1.1
    • kernel-livepatch-6_12_0-160000_6-default-4-160000.1.1
    • kernel-livepatch-6_12_0-160000_6-default-debuginfo-4-160000.1.1
  • SUSE Linux Enterprise Server for SAP Applications 16.0 (ppc64le x86_64)
    • kernel-livepatch-SLE16_Update_1-debugsource-4-160000.1.1
    • kernel-livepatch-6_12_0-160000_6-default-4-160000.1.1
    • kernel-livepatch-6_12_0-160000_6-default-debuginfo-4-160000.1.1

References: