SUSE-SU-2026:4974-1: important: Security update for the Linux Kernel (Live Patch 56 for SUSE Linux Enterprise 15 SP4)

SLE-SECURITY-UPDATES null at suse.de
Mon Nov 2 08:32:34 UTC 2026 

# Security update for the Linux Kernel (Live Patch 56 for SUSE Linux Enterprise
15 SP4)

Announcement ID: SUSE-SU-2026:4974-1  
Release Date: 2026-11-01T06:34:34Z  
Rating: important  
References:

  * bsc#1269766
  * bsc#1271837
  * bsc#1274712
  * bsc#1277399
  * bsc#1280285
  * bsc#1280693
  * bsc#1280728
  * bsc#1285686

  
Cross-References:

  * CVE-2026-53016
  * CVE-2026-53381
  * CVE-2026-68426
  * CVE-2026-74469
  * CVE-2026-74669
  * CVE-2026-89551
  * CVE-2026-89674
  * CVE-2026-98432

  
CVSS scores:

  * CVE-2026-53016 ( SUSE ):  7.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
  * CVE-2026-53016 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-53016 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-53381 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-53381 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-53381 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-68426 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-68426 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-74469 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-74469 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-74469 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-74669 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-74669 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-89551 ( 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-2026-89551 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-89551 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-89674 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-89674 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-98432 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-98432 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-98432 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 Micro 5.3
  * SUSE Linux Enterprise Micro 5.4
  * SUSE Linux Enterprise Real Time 15 SP4
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4

  
  
An update that solves eight vulnerabilities can now be installed.

## Description:

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.225 fixes
various security issues:

The following security issues were fixed:

  * CVE-2026-53016: crypto: ccp - copy IV using skcipher ivsize (bsc#1269766).
  * CVE-2026-53381: virtiofs: fix UAF on submount umount (bsc#1271837).
  * CVE-2026-68426: xfrm: fix stale skb->prev after async crypto steals a GSO
    segment (bsc#1274712).
  * CVE-2026-74469: sctp: prevent peer transport count overflow (bsc#1280693).
  * CVE-2026-74669: ipvs: clear IPv4 options after rebasing tunnel ICMP errors
    (bsc#1277399).
  * CVE-2026-89551: SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow
    (bsc#1280728).
  * CVE-2026-89674: nfsd: fix XDR length calculation in
    nfsd4_ff_encode_layoutget (bsc#1280285).
  * CVE-2026-98432: ipv4: free inet_opt and ireq_opt after an RCU grace period
    (bsc#1285686).

## 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-SP4  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-4973 SUSE-SLE-
Module-Live-Patching-15-SP4-2026-4976 SUSE-SLE-Module-Live-
Patching-15-SP4-2026-4975 SUSE-SLE-Module-Live-Patching-15-SP4-2026-4974

  * openSUSE Leap 15.4  
    zypper in -t patch SUSE-2026-4976 SUSE-2026-4975 SUSE-2026-4974 SUSE-2026-4973

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
    * kernel-livepatch-5_14_21-150400_24_205-default-11-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_51-debugsource-11-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_197-default-debuginfo-12-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_214-default-9-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_225-default-debuginfo-8-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_53-debugsource-9-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_197-default-12-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_225-default-8-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_205-default-debuginfo-11-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_56-debugsource-8-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_214-default-debuginfo-9-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_49-debugsource-12-150400.2.1
  * openSUSE Leap 15.4 (ppc64le s390x x86_64)
    * kernel-livepatch-5_14_21-150400_24_205-default-11-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_51-debugsource-11-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_197-default-debuginfo-12-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_214-default-9-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_225-default-debuginfo-8-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_53-debugsource-9-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_197-default-12-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_225-default-8-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_205-default-debuginfo-11-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_56-debugsource-8-150400.2.1
    * kernel-livepatch-5_14_21-150400_24_214-default-debuginfo-9-150400.2.1
    * kernel-livepatch-SLE15-SP4_Update_49-debugsource-12-150400.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-53016.html
  * https://www.suse.com/security/cve/CVE-2026-53381.html
  * https://www.suse.com/security/cve/CVE-2026-68426.html
  * https://www.suse.com/security/cve/CVE-2026-74469.html
  * https://www.suse.com/security/cve/CVE-2026-74669.html
  * https://www.suse.com/security/cve/CVE-2026-89551.html
  * https://www.suse.com/security/cve/CVE-2026-89674.html
  * https://www.suse.com/security/cve/CVE-2026-98432.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1269766
  * https://bugzilla.suse.com/show_bug.cgi?id=1271837
  * https://bugzilla.suse.com/show_bug.cgi?id=1274712
  * https://bugzilla.suse.com/show_bug.cgi?id=1277399
  * https://bugzilla.suse.com/show_bug.cgi?id=1280285
  * https://bugzilla.suse.com/show_bug.cgi?id=1280693
  * https://bugzilla.suse.com/show_bug.cgi?id=1280728
  * https://bugzilla.suse.com/show_bug.cgi?id=1285686

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