Security update for the Linux Kernel (Live Patch 26 for SUSE Linux Enterprise 15 SP6)

Announcement ID: SUSE-SU-2026:3344-1
Release Date: 2026-07-28T12:06:44Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-46113 ( SUSE ): 9.3 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • CVE-2026-46113 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-46113 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-53359 ( SUSE ): 9.3 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • CVE-2026-53359 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-53359 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-53366 ( SUSE ): 9.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • CVE-2026-53366 ( SUSE ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-53366 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • openSUSE Leap 15.6
  • SUSE Linux Enterprise Live Patching 15-SP6
  • SUSE Linux Enterprise Real Time 15 SP6
  • SUSE Linux Enterprise Server 15 SP6
  • SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that solves three vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.112 fixes various security issues:

The following security issues were fixed:

  • CVE-2026-46113: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN (bsc#1266970).
  • CVE-2026-53359: KVM: x86: Fix shadow paging use-after-free due to unexpected role (bsc#1270060).
  • CVE-2026-53366: ipv4: account for fraggap on the paged allocation path (bsc#1271370).

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-SP6
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-3344=1
  • openSUSE Leap 15.6
    zypper in -t patch SUSE-2026-3344=1

Package List:

  • openSUSE Leap 15.6 (ppc64le s390x x86_64)
    • kernel-livepatch-6_4_0-150600_23_112-default-debuginfo-4-150600.2.1
    • kernel-livepatch-SLE15-SP6_Update_26-debugsource-4-150600.2.1
    • kernel-livepatch-6_4_0-150600_23_112-default-4-150600.2.1
  • SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
    • kernel-livepatch-6_4_0-150600_23_112-default-debuginfo-4-150600.2.1
    • kernel-livepatch-SLE15-SP6_Update_26-debugsource-4-150600.2.1
    • kernel-livepatch-6_4_0-150600_23_112-default-4-150600.2.1

References: