ESB-2026.4566

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4566 Security update for the Linux Kernel 5 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-31431 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261670-1 Comment: CVSS (Max): 7.8 CVE-2026-31431 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H The following are listed in the CISA Known Exploited Vulnerabilities (KEV) Catalog: CISA KEV CVE(s): CVE-2026-31431 CISA KEV URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog EPSS (Max): 4.0% (88th) CVE-2026-31431 2026-05-03 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for the Linux Kernel Announcement ID: SUSE-SU-2026:1670-1 Release Date: 2026-05-02T05:53:43Z Rating: important References: o bsc#1262573 Cross-References: o CVE-2026-31431 o CVE-2026-31431 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N /S:U/C:H/I:H/A:H CVSS scores: o CVE-2026-31431 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o openSUSE Leap 15.5 o SUSE Linux Enterprise High Performance Computing 15 SP5 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 o SUSE Linux Enterprise High Performance Computing LTSS 15 Affected SP5 Products: o SUSE Linux Enterprise Live Patching 15-SP5 o SUSE Linux Enterprise Micro 5.5 o SUSE Linux Enterprise Real Time 15 SP5 o SUSE Linux Enterprise Server 15 SP5 o SUSE Linux Enterprise Server 15 SP5 LTSS o SUSE Linux Enterprise Server for SAP Applications 15 SP5 An update that solves one vulnerability can now be installed. Description: The SUSE Linux Enterprise 15 SP6 kernel was updated to fix one security issue The following security issue was fixed: o CVE-2026-31431: The copy.fail security issue is fixed by revert to operating out-of-place in algif_aead (bsc#1262573). Special Instructions and Notes: o Please reboot the system after installing this update. 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: o SUSE Linux Enterprise Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2026-1670=1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1670=1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1670=1 o SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1670=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1670=1 o SUSE Linux Enterprise Live Patching 15-SP5 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-1670=1 o openSUSE Leap 15.5 zypper in -t patch SUSE-2026-1670=1 Package List: o SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64 nosrc) kernel-default-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Micro 5.5 (aarch64 x86_64) kernel-default-base-5.14.21-150500.55.149.1.150500.6.73.2 o SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64) kernel-default-debugsource-5.14.21-150500.55.149.1 kernel-default-debuginfo-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Micro 5.5 (noarch) kernel-macros-5.14.21-150500.55.149.1 kernel-source-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64) kernel-default-base-5.14.21-150500.55.149.1.150500.6.73.2 gfs2-kmp-default-5.14.21-150500.55.149.1 gfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-obs-build-5.14.21-150500.55.149.1 dlm-kmp-default-5.14.21-150500.55.149.1 ocfs2-kmp-default-5.14.21-150500.55.149.1 dlm-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debugsource-5.14.21-150500.55.149.1 kernel-obs-build-debugsource-5.14.21-150500.55.149.1 kernel-default-devel-5.14.21-150500.55.149.1 kernel-syms-5.14.21-150500.55.149.1 cluster-md-kmp-default-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-default-5.14.21-150500.55.149.1 kernel-default-devel-debuginfo-5.14.21-150500.55.149.1 ocfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 nosrc) kernel-64kb-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64) kernel-64kb-devel-debuginfo-5.14.21-150500.55.149.1 kernel-64kb-devel-5.14.21-150500.55.149.1 kernel-64kb-debuginfo-5.14.21-150500.55.149.1 kernel-64kb-debugsource-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 nosrc x86_64) kernel-default-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch) kernel-devel-5.14.21-150500.55.149.1 kernel-macros-5.14.21-150500.55.149.1 kernel-source-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch nosrc) kernel-docs-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) kernel-default-base-5.14.21-150500.55.149.1.150500.6.73.2 gfs2-kmp-default-5.14.21-150500.55.149.1 gfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-obs-build-5.14.21-150500.55.149.1 dlm-kmp-default-5.14.21-150500.55.149.1 ocfs2-kmp-default-5.14.21-150500.55.149.1 dlm-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debugsource-5.14.21-150500.55.149.1 kernel-obs-build-debugsource-5.14.21-150500.55.149.1 kernel-default-devel-5.14.21-150500.55.149.1 kernel-syms-5.14.21-150500.55.149.1 cluster-md-kmp-default-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-default-5.14.21-150500.55.149.1 kernel-default-devel-debuginfo-5.14.21-150500.55.149.1 ocfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 nosrc) kernel-64kb-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64) kernel-64kb-devel-debuginfo-5.14.21-150500.55.149.1 kernel-64kb-devel-5.14.21-150500.55.149.1 kernel-64kb-debuginfo-5.14.21-150500.55.149.1 kernel-64kb-debugsource-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 nosrc x86_64) kernel-default-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch) kernel-devel-5.14.21-150500.55.149.1 kernel-macros-5.14.21-150500.55.149.1 kernel-source-5.14.21-150500.55.149.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch nosrc) kernel-docs-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) kernel-obs-build-5.14.21-150500.55.149.1 gfs2-kmp-default-5.14.21-150500.55.149.1 gfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 ocfs2-kmp-default-5.14.21-150500.55.149.1 dlm-kmp-default-5.14.21-150500.55.149.1 dlm-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debugsource-5.14.21-150500.55.149.1 kernel-obs-build-debugsource-5.14.21-150500.55.149.1 kernel-default-devel-5.14.21-150500.55.149.1 kernel-syms-5.14.21-150500.55.149.1 reiserfs-kmp-default-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-default-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-default-5.14.21-150500.55.149.1 reiserfs-kmp-default-5.14.21-150500.55.149.1 kernel-default-devel-debuginfo-5.14.21-150500.55.149.1 ocfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 nosrc) kernel-64kb-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64) kernel-64kb-devel-debuginfo-5.14.21-150500.55.149.1 kernel-64kb-devel-5.14.21-150500.55.149.1 kernel-64kb-debuginfo-5.14.21-150500.55.149.1 kernel-64kb-debugsource-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64 nosrc) kernel-default-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le x86_64) kernel-default-base-5.14.21-150500.55.149.1.150500.6.73.2 o SUSE Linux Enterprise Server 15 SP5 LTSS (noarch) kernel-devel-5.14.21-150500.55.149.1 kernel-macros-5.14.21-150500.55.149.1 kernel-source-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (noarch nosrc) kernel-docs-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (nosrc s390x) kernel-zfcpdump-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (s390x) kernel-zfcpdump-debuginfo-5.14.21-150500.55.149.1 kernel-zfcpdump-debugsource-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64) kernel-default-base-5.14.21-150500.55.149.1.150500.6.73.2 gfs2-kmp-default-5.14.21-150500.55.149.1 gfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-obs-build-5.14.21-150500.55.149.1 dlm-kmp-default-5.14.21-150500.55.149.1 ocfs2-kmp-default-5.14.21-150500.55.149.1 dlm-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debugsource-5.14.21-150500.55.149.1 kernel-obs-build-debugsource-5.14.21-150500.55.149.1 kernel-default-devel-5.14.21-150500.55.149.1 kernel-syms-5.14.21-150500.55.149.1 reiserfs-kmp-default-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-default-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-default-5.14.21-150500.55.149.1 reiserfs-kmp-default-5.14.21-150500.55.149.1 kernel-default-devel-debuginfo-5.14.21-150500.55.149.1 ocfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (nosrc ppc64le x86_64) kernel-default-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch) kernel-devel-5.14.21-150500.55.149.1 kernel-macros-5.14.21-150500.55.149.1 kernel-source-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch nosrc) kernel-docs-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Live Patching 15-SP5 (nosrc) kernel-default-5.14.21-150500.55.149.1 o SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64) kernel-default-livepatch-devel-5.14.21-150500.55.149.1 kernel-default-debugsource-5.14.21-150500.55.149.1 kernel-default-livepatch-5.14.21-150500.55.149.1 kernel-default-debuginfo-5.14.21-150500.55.149.1 kernel-livepatch-5_14_21-150500_55_149-default-1-150500.11.5.1 kernel-livepatch-SLE15-SP5_Update_38-debugsource-1-150500.11.5.1 kernel-livepatch-5_14_21-150500_55_149-default-debuginfo-1-150500.11.5.1 o openSUSE Leap 15.5 (noarch nosrc) kernel-docs-5.14.21-150500.55.149.1 o openSUSE Leap 15.5 (noarch) kernel-devel-5.14.21-150500.55.149.1 kernel-source-vanilla-5.14.21-150500.55.149.1 kernel-docs-html-5.14.21-150500.55.149.1 kernel-macros-5.14.21-150500.55.149.1 kernel-source-5.14.21-150500.55.149.1 o openSUSE Leap 15.5 (aarch64 ppc64le x86_64) 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gfs2-kmp-default-debuginfo-5.14.21-150500.55.149.1 ocfs2-kmp-default-5.14.21-150500.55.149.1 dlm-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-default-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-default-debuginfo-5.14.21-150500.55.149.1 kernel-obs-build-5.14.21-150500.55.149.1 dlm-kmp-default-5.14.21-150500.55.149.1 kernel-default-extra-debuginfo-5.14.21-150500.55.149.1 kernel-default-livepatch-5.14.21-150500.55.149.1 kernel-obs-build-debugsource-5.14.21-150500.55.149.1 kernel-syms-5.14.21-150500.55.149.1 cluster-md-kmp-default-5.14.21-150500.55.149.1 reiserfs-kmp-default-5.14.21-150500.55.149.1 o openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 nosrc) kernel-default-5.14.21-150500.55.149.1 o openSUSE Leap 15.5 (ppc64le s390x x86_64) kernel-livepatch-5_14_21-150500_55_149-default-1-150500.11.5.1 kernel-default-livepatch-devel-5.14.21-150500.55.149.1 kernel-livepatch-5_14_21-150500_55_149-default-debuginfo-1-150500.11.5.1 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dtb-nvidia-5.14.21-150500.55.149.1 kernel-64kb-devel-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-64kb-5.14.21-150500.55.149.1 dtb-xilinx-5.14.21-150500.55.149.1 dtb-amd-5.14.21-150500.55.149.1 dtb-allwinner-5.14.21-150500.55.149.1 dtb-marvell-5.14.21-150500.55.149.1 kernel-64kb-devel-5.14.21-150500.55.149.1 kernel-64kb-extra-5.14.21-150500.55.149.1 ocfs2-kmp-64kb-5.14.21-150500.55.149.1 dtb-amlogic-5.14.21-150500.55.149.1 dtb-apm-5.14.21-150500.55.149.1 dtb-exynos-5.14.21-150500.55.149.1 dtb-mediatek-5.14.21-150500.55.149.1 dtb-altera-5.14.21-150500.55.149.1 dlm-kmp-64kb-5.14.21-150500.55.149.1 kselftests-kmp-64kb-debuginfo-5.14.21-150500.55.149.1 dtb-sprd-5.14.21-150500.55.149.1 reiserfs-kmp-64kb-debuginfo-5.14.21-150500.55.149.1 dtb-rockchip-5.14.21-150500.55.149.1 dtb-apple-5.14.21-150500.55.149.1 dtb-renesas-5.14.21-150500.55.149.1 gfs2-kmp-64kb-5.14.21-150500.55.149.1 kernel-64kb-debugsource-5.14.21-150500.55.149.1 kselftests-kmp-64kb-5.14.21-150500.55.149.1 dtb-freescale-5.14.21-150500.55.149.1 reiserfs-kmp-64kb-5.14.21-150500.55.149.1 ocfs2-kmp-64kb-debuginfo-5.14.21-150500.55.149.1 cluster-md-kmp-64kb-debuginfo-5.14.21-150500.55.149.1 dtb-socionext-5.14.21-150500.55.149.1 kernel-64kb-debuginfo-5.14.21-150500.55.149.1 dtb-lg-5.14.21-150500.55.149.1 dtb-broadcom-5.14.21-150500.55.149.1 dtb-qcom-5.14.21-150500.55.149.1 dtb-amazon-5.14.21-150500.55.149.1 kernel-64kb-extra-debuginfo-5.14.21-150500.55.149.1 o openSUSE Leap 15.5 (aarch64 nosrc) kernel-64kb-5.14.21-150500.55.149.1 References: o https://www.suse.com/security/cve/CVE-2026-31431.html o https://bugzilla.suse.com/show_bug.cgi?id=1262573 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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