SUSE-SU-2026:3316-1: important: Security update for the Linux Kernel RT (Live Patch 2 for SUSE Linux Enterprise 15 SP7)

SLE-UPDATES null at suse.de
Tue Jul 28 08:30:32 UTC 2026 

# Security update for the Linux Kernel RT (Live Patch 2 for SUSE Linux
Enterprise 15 SP7)

Announcement ID: SUSE-SU-2026:3316-1  
Release Date: 2026-07-27T19:36:28Z  
Rating: important  
References:

  * bsc#1262404
  * bsc#1264060
  * bsc#1266970
  * bsc#1270060
  * bsc#1271370
  * bsc#1271648

  
Cross-References:

  * CVE-2026-23240
  * CVE-2026-31738
  * CVE-2026-43038
  * CVE-2026-46113
  * CVE-2026-53359
  * CVE-2026-53366

  
CVSS scores:

  * CVE-2026-23240 ( 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-2026-23240 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23240 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31738 ( 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-2026-31738 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31738 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-43038 ( SUSE ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-43038 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43038 ( NVD ):  7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
  * 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 Live Patching 15-SP7
  * SUSE Linux Enterprise Real Time 15 SP6
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves six vulnerabilities can now be installed.

## Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.8 fixes various
security issues:

The following security issues were fixed:

  * CVE-2026-23240: tls: Fix race condition in tls_sw_cancel_work_tx()
    (bsc#1262404).
  * CVE-2026-31738: vxlan: validate ND option lengths in vxlan_na_create
    (bsc#1264060).
  * CVE-2026-43038: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()
    (bsc#1271648).
  * 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-SP6-2026-3316=1 SUSE-SLE-
Module-Live-Patching-15-SP6-2026-3315=1 SUSE-SLE-Module-Live-
Patching-15-SP6-2026-3308=1 SUSE-SLE-Module-Live-Patching-15-SP6-2026-3307=1
SUSE-SLE-Module-Live-Patching-15-SP6-2026-3314=1 SUSE-SLE-Module-Live-
Patching-15-SP6-2026-3311=1

  * SUSE Linux Enterprise Live Patching 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2026-3303=1 SUSE-SLE-
Module-Live-Patching-15-SP7-2026-3304=1 SUSE-SLE-Module-Live-
Patching-15-SP7-2026-3309=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-3312=1
SUSE-SLE-Module-Live-Patching-15-SP7-2026-3306=1 SUSE-SLE-Module-Live-
Patching-15-SP7-2026-3310=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-3305=1
SUSE-SLE-Module-Live-Patching-15-SP7-2026-3313=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-3316=1 SUSE-2026-3315=1 SUSE-2026-3308=1
SUSE-2026-3307=1 SUSE-2026-3314=1 SUSE-2026-3311=1

## Package List:

  * openSUSE Leap 15.6 (ppc64le s390x x86_64)
    * kernel-livepatch-SLE15-SP6_Update_14-debugsource-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_81-default-10-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_18-debugsource-10-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_73-default-12-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_16-debugsource-12-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_15-debugsource-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_65-default-debuginfo-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-debuginfo-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_78-default-debuginfo-10-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_60-default-debuginfo-19-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_73-default-debuginfo-12-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_60-default-19-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_65-default-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_81-default-debuginfo-10-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_78-default-10-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_13-debugsource-19-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_17-debugsource-10-150600.2.1
  * SUSE Linux Enterprise Live Patching 15-SP7 (ppc64le s390x x86_64)
    * kernel-livepatch-SLE15-SP7_Update_5-debugsource-12-150700.2.1
    * kernel-livepatch-6_4_0-150700_53_16-default-15-150700.2.1
    * kernel-livepatch-6_4_0-150700_53_19-default-debuginfo-12-150700.2.1
    * kernel-livepatch-6_4_0-150700_53_16-default-debuginfo-15-150700.2.1
    * kernel-livepatch-6_4_0-150700_53_19-default-12-150700.2.1
    * kernel-livepatch-SLE15-SP7_Update_4-debugsource-15-150700.2.1
  * SUSE Linux Enterprise Live Patching 15-SP7 (x86_64)
    * kernel-livepatch-6_4_0-150700_7_22-rt-11-150700.2.1
    * kernel-livepatch-SLE15-SP7-RT_Update_2-debugsource-19-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_8-rt-debuginfo-19-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_13-rt-debuginfo-15-150700.2.1
    * kernel-livepatch-SLE15-SP7-RT_Update_6-debugsource-11-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_8-rt-19-150700.2.1
    * kernel-livepatch-SLE15-SP7-RT_Update_4-debugsource-15-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_13-rt-15-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_25-rt-10-150700.2.1
    * kernel-livepatch-SLE15-SP7-RT_Update_7-debugsource-10-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_22-rt-debuginfo-11-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_16-rt-15-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_19-rt-debuginfo-12-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_19-rt-12-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_25-rt-debuginfo-10-150700.2.1
    * kernel-livepatch-SLE15-SP7-RT_Update_3-debugsource-15-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_16-rt-debuginfo-15-150700.2.1
    * kernel-livepatch-SLE15-SP7-RT_Update_5-debugsource-12-150700.2.1
  * SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
    * kernel-livepatch-SLE15-SP6_Update_14-debugsource-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_81-default-10-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_78-default-10-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_18-debugsource-10-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_13-debugsource-19-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_73-default-12-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_16-debugsource-12-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_15-debugsource-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_73-default-debuginfo-12-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-debuginfo-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_70-default-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_78-default-debuginfo-10-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_60-default-debuginfo-19-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_60-default-19-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_65-default-15-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_81-default-debuginfo-10-150600.2.1
    * kernel-livepatch-6_4_0-150600_23_65-default-debuginfo-15-150600.2.1
    * kernel-livepatch-SLE15-SP6_Update_17-debugsource-10-150600.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-23240.html
  * https://www.suse.com/security/cve/CVE-2026-31738.html
  * https://www.suse.com/security/cve/CVE-2026-43038.html
  * https://www.suse.com/security/cve/CVE-2026-46113.html
  * https://www.suse.com/security/cve/CVE-2026-53359.html
  * https://www.suse.com/security/cve/CVE-2026-53366.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1262404
  * https://bugzilla.suse.com/show_bug.cgi?id=1264060
  * https://bugzilla.suse.com/show_bug.cgi?id=1266970
  * https://bugzilla.suse.com/show_bug.cgi?id=1270060
  * https://bugzilla.suse.com/show_bug.cgi?id=1271370
  * https://bugzilla.suse.com/show_bug.cgi?id=1271648

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