SUSE-SU-2026:2863-1: important: Security update for the Linux Kernel RT (Live Patch 16 for SUSE Linux Enterprise 15 SP7)

Mon Jul 13 08:31:01 UTC 2026

# Security update for the Linux Kernel RT (Live Patch 16 for SUSE Linux
Enterprise 15 SP7)

Announcement ID: SUSE-SU-2026:2863-1  
Release Date: 2026-07-11T06:44:07Z  
Rating: important  
References:

  * bsc#1267698
  * bsc#1267723
  * bsc#1267893
  * bsc#1268662
  * bsc#1269023
  * bsc#1269495

Cross-References:

  * CVE-2026-46120
  * CVE-2026-46173
  * CVE-2026-46227
  * CVE-2026-52909
  * CVE-2026-52943
  * CVE-2026-53362

CVSS scores:

  * CVE-2026-46120 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-46120 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46173 ( 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-2026-46173 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46173 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46227 ( 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-2026-46227 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46227 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46227 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52909 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-52909 ( SUSE ):  7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-52909 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52943 ( 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-2026-52943 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52943 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52943 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-53362 ( 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-2026-53362 ( SUSE ):  8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/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 six vulnerabilities can now be installed.

## Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.59 fixes various
security issues

The following security issues were fixed:

  * CVE-2026-46120: ip6_gre: Use cached t->net in ip6erspan_changelink()
    (bsc#1267893).
  * CVE-2026-46173: exit: prevent preemption of oopsing TASK_DEAD task
    (bsc#1267723).
  * CVE-2026-46227: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in
    SCTP_SENDALL (bsc#1267698).
  * CVE-2026-52909: ip6_vti: set netns_immutable on the fallback device
    (bsc#1268662).
  * CVE-2026-52943: net: skbuff: fix missing zerocopy reference in pskb_carve
    helpers (bsc#1269023).
  * CVE-2026-53362: ipv6: account for fraggap on the paged allocation path
    (bsc#1269495).

## 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-SP7-2026-2863=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP7 (x86_64)
    * kernel-livepatch-SLE15-SP7-RT_Update_16-debugsource-2-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_59-rt-2-150700.2.1
    * kernel-livepatch-6_4_0-150700_7_59-rt-debuginfo-2-150700.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-46120.html
  * https://www.suse.com/security/cve/CVE-2026-46173.html
  * https://www.suse.com/security/cve/CVE-2026-46227.html
  * https://www.suse.com/security/cve/CVE-2026-52909.html
  * https://www.suse.com/security/cve/CVE-2026-52943.html
  * https://www.suse.com/security/cve/CVE-2026-53362.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1267698
  * https://bugzilla.suse.com/show_bug.cgi?id=1267723
  * https://bugzilla.suse.com/show_bug.cgi?id=1267893
  * https://bugzilla.suse.com/show_bug.cgi?id=1268662
  * https://bugzilla.suse.com/show_bug.cgi?id=1269023
  * https://bugzilla.suse.com/show_bug.cgi?id=1269495

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