Security update for the Linux Kernel (Live Patch 12 for SUSE Linux Enterprise 15 SP7)

Announcement ID: SUSE-SU-2026:1873-1
Release Date: 2026-05-15T15:36:21Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-43284 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-43284 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-43284 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products:
  • openSUSE Leap 15.4
  • SUSE Linux Enterprise High Performance Computing 15 SP4
  • SUSE Linux Enterprise Live Patching 15-SP4
  • SUSE Linux Enterprise Live Patching 15-SP7
  • SUSE Linux Enterprise Micro 5.3
  • SUSE Linux Enterprise Micro 5.4
  • SUSE Linux Enterprise Real Time 15 SP4
  • SUSE Linux Enterprise Real Time 15 SP7
  • SUSE Linux Enterprise Server 15 SP4
  • SUSE Linux Enterprise Server 15 SP7
  • SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves one vulnerability can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-53.40 fixes one security issue

The following security issue was fixed:

  • CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags (bsc#1264459).

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:

  • openSUSE Leap 15.4
    zypper in -t patch SUSE-2026-1873=1
  • SUSE Linux Enterprise Live Patching 15-SP4
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-1873=1
  • SUSE Linux Enterprise Live Patching 15-SP7
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2026-1874=1

Package List:

  • openSUSE Leap 15.4 (ppc64le s390x x86_64)
    • kernel-livepatch-5_14_21-150400_24_205-default-debuginfo-2-150400.2.1
    • kernel-livepatch-5_14_21-150400_24_205-default-2-150400.2.1
    • kernel-livepatch-SLE15-SP4_Update_51-debugsource-2-150400.2.1
  • SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
    • kernel-livepatch-5_14_21-150400_24_205-default-debuginfo-2-150400.2.1
    • kernel-livepatch-5_14_21-150400_24_205-default-2-150400.2.1
    • kernel-livepatch-SLE15-SP4_Update_51-debugsource-2-150400.2.1
  • SUSE Linux Enterprise Live Patching 15-SP7 (ppc64le s390x x86_64)
    • kernel-livepatch-SLE15-SP7_Update_12-debugsource-2-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_40-default-debuginfo-2-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_40-default-2-150700.2.1

References: