Security update for the Linux Kernel (Live Patch 9 for SUSE Linux Enterprise 15 SP7)

Announcement ID: SUSE-SU-2026:2500-1
Release Date: 2026-06-22T20:05:08Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-23278 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-23278 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-23278 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-31402 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-31402 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
  • CVE-2026-31402 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-31504 ( 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-2026-31504 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-31504 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-31694 ( 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-2026-31694 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-31694 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-43503 ( 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-2026-43503 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-43503 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-46323 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-46323 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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 and has one security fix can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.31 fixes various security issues

The following security issues were fixed:

  • CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1260907).
  • CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640).
  • CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088).
  • CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902).
  • CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).
  • CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282).
  • net/sched: fix pedit partial COW leading to page cache (bsc#1267625).

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-SP7-2026-2500=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-2501=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-2502=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-2506=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-2507=1

Package List:

  • SUSE Linux Enterprise Live Patching 15-SP7 (x86_64)
    • kernel-livepatch-6_4_0-150700_7_28-rt-8-150700.2.1
    • kernel-livepatch-SLE15-SP7-RT_Update_10-debugsource-5-150700.2.1
    • kernel-livepatch-SLE15-SP7-RT_Update_9-debugsource-7-150700.2.1
    • kernel-livepatch-SLE15-SP7-RT_Update_8-debugsource-8-150700.2.1
    • kernel-livepatch-6_4_0-150700_7_31-rt-7-150700.2.1
    • kernel-livepatch-6_4_0-150700_7_34-rt-debuginfo-5-150700.2.1
    • kernel-livepatch-6_4_0-150700_7_34-rt-5-150700.2.1
    • kernel-livepatch-6_4_0-150700_7_28-rt-debuginfo-8-150700.2.1
    • kernel-livepatch-6_4_0-150700_7_31-rt-debuginfo-7-150700.2.1
  • SUSE Linux Enterprise Live Patching 15-SP7 (ppc64le s390x x86_64)
    • kernel-livepatch-SLE15-SP7_Update_8-debugsource-8-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_31-default-7-150700.2.1
    • kernel-livepatch-SLE15-SP7_Update_9-debugsource-7-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_31-default-debuginfo-7-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_28-default-debuginfo-8-150700.2.1
    • kernel-livepatch-6_4_0-150700_53_28-default-8-150700.2.1

References: