Security update for the Linux Kernel (Live Patch 4 for SUSE Linux Enterprise 15 SP7)

Announcement ID: SUSE-SU-2026:0557-1
Release Date: 2026-02-16T10:33:37Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-40129 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-40129 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • 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 Live Patching 15-SP7
  • SUSE Linux Enterprise Real Time 15 SP7
  • SUSE Linux Enterprise Server 15 SP7
  • SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves two vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise kernel 6.4.0-150700.53.16 fixes various security issues

The following security issues were fixed:

  • CVE-2025-40129: sunrpc: fix null pointer dereference on zero-length checksum (bsc#1253473).
  • 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 Live Patching 15-SP7
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2026-557=1

Package List:

  • SUSE Linux Enterprise Live Patching 15-SP7 (ppc64le s390x x86_64)
    • kernel-livepatch-SLE15-SP7_Update_4-debugsource-6-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_16-default-6-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_16-default-debuginfo-6-150700.2.1

References: