Security update for the Linux Kernel

Announcement ID: SUSE-SU-2026:1840-1
Release Date: 2026-05-13T10:05:24Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-43284 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-43284 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-43284 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-43500 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-43500 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-43500 ( 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 High Availability Extension 15 SP6
  • SUSE Linux Enterprise Live Patching 15-SP6
  • SUSE Linux Enterprise Real Time 15 SP6
  • SUSE Linux Enterprise Server 15 SP6
  • SUSE Linux Enterprise Server 15 SP6 LTSS
  • SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that solves two vulnerabilities can now be installed.

Description:

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix the following issue:

  • CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags (bsc#1264449).
  • CVE-2026-43500: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present (bsc#1264450).

Special Instructions and Notes:

  • 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:

  • openSUSE Leap 15.6
    zypper in -t patch SUSE-2026-1840=1
  • SUSE Linux Enterprise High Availability Extension 15 SP6
    zypper in -t patch SUSE-SLE-Product-HA-15-SP6-2026-1840=1
  • SUSE Linux Enterprise Server 15 SP6 LTSS
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1840=1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP6
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1840=1
  • SUSE Linux Enterprise Live Patching 15-SP6
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-1840=1

Package List:

  • openSUSE Leap 15.6 (noarch nosrc)
    • kernel-docs-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (noarch)
    • kernel-macros-6.4.0-150600.23.103.1
    • kernel-source-vanilla-6.4.0-150600.23.103.1
    • kernel-source-6.4.0-150600.23.103.1
    • kernel-docs-html-6.4.0-150600.23.103.1
    • kernel-devel-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (nosrc ppc64le x86_64)
    • kernel-debug-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (ppc64le x86_64)
    • kernel-debug-debugsource-6.4.0-150600.23.103.1
    • kernel-debug-devel-6.4.0-150600.23.103.1
    • kernel-debug-devel-debuginfo-6.4.0-150600.23.103.1
    • kernel-debug-debuginfo-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (x86_64)
    • kernel-kvmsmall-vdso-debuginfo-6.4.0-150600.23.103.1
    • kernel-debug-vdso-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-vdso-6.4.0-150600.23.103.1
    • kernel-debug-vdso-6.4.0-150600.23.103.1
    • kernel-default-vdso-debuginfo-6.4.0-150600.23.103.1
    • kernel-kvmsmall-vdso-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (aarch64)
    • dtb-hisilicon-6.4.0-150600.23.103.1
    • dtb-arm-6.4.0-150600.23.103.1
    • dtb-mediatek-6.4.0-150600.23.103.1
    • reiserfs-kmp-64kb-6.4.0-150600.23.103.1
    • gfs2-kmp-64kb-debuginfo-6.4.0-150600.23.103.1
    • dtb-amazon-6.4.0-150600.23.103.1
    • kernel-64kb-devel-6.4.0-150600.23.103.1
    • dtb-altera-6.4.0-150600.23.103.1
    • dlm-kmp-64kb-debuginfo-6.4.0-150600.23.103.1
    • dtb-broadcom-6.4.0-150600.23.103.1
    • dtb-nvidia-6.4.0-150600.23.103.1
    • dtb-renesas-6.4.0-150600.23.103.1
    • dtb-apm-6.4.0-150600.23.103.1
    • dtb-rockchip-6.4.0-150600.23.103.1
    • kernel-64kb-extra-6.4.0-150600.23.103.1
    • ocfs2-kmp-64kb-debuginfo-6.4.0-150600.23.103.1
    • dlm-kmp-64kb-6.4.0-150600.23.103.1
    • cluster-md-kmp-64kb-debuginfo-6.4.0-150600.23.103.1
    • kernel-64kb-debuginfo-6.4.0-150600.23.103.1
    • gfs2-kmp-64kb-6.4.0-150600.23.103.1
    • dtb-amd-6.4.0-150600.23.103.1
    • dtb-cavium-6.4.0-150600.23.103.1
    • dtb-allwinner-6.4.0-150600.23.103.1
    • reiserfs-kmp-64kb-debuginfo-6.4.0-150600.23.103.1
    • dtb-socionext-6.4.0-150600.23.103.1
    • dtb-apple-6.4.0-150600.23.103.1
    • dtb-marvell-6.4.0-150600.23.103.1
    • kernel-64kb-optional-debuginfo-6.4.0-150600.23.103.1
    • kernel-64kb-extra-debuginfo-6.4.0-150600.23.103.1
    • dtb-exynos-6.4.0-150600.23.103.1
    • dtb-qcom-6.4.0-150600.23.103.1
    • dtb-xilinx-6.4.0-150600.23.103.1
    • kernel-64kb-optional-6.4.0-150600.23.103.1
    • kernel-64kb-debugsource-6.4.0-150600.23.103.1
    • dtb-freescale-6.4.0-150600.23.103.1
    • kselftests-kmp-64kb-6.4.0-150600.23.103.1
    • kselftests-kmp-64kb-debuginfo-6.4.0-150600.23.103.1
    • dtb-amlogic-6.4.0-150600.23.103.1
    • dtb-lg-6.4.0-150600.23.103.1
    • ocfs2-kmp-64kb-6.4.0-150600.23.103.1
    • dtb-sprd-6.4.0-150600.23.103.1
    • cluster-md-kmp-64kb-6.4.0-150600.23.103.1
    • kernel-64kb-devel-debuginfo-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (aarch64 nosrc)
    • kernel-64kb-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (aarch64 ppc64le x86_64)
    • kernel-kvmsmall-devel-6.4.0-150600.23.103.1
    • kernel-default-base-rebuild-6.4.0-150600.23.103.1.150600.12.48.1
    • kernel-default-base-6.4.0-150600.23.103.1.150600.12.48.1
    • kernel-kvmsmall-debugsource-6.4.0-150600.23.103.1
    • kernel-kvmsmall-debuginfo-6.4.0-150600.23.103.1
    • kernel-kvmsmall-devel-debuginfo-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
    • cluster-md-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • gfs2-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • reiserfs-kmp-default-6.4.0-150600.23.103.1
    • kernel-default-extra-6.4.0-150600.23.103.1
    • kselftests-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • reiserfs-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-extra-debuginfo-6.4.0-150600.23.103.1
    • ocfs2-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-optional-debuginfo-6.4.0-150600.23.103.1
    • ocfs2-kmp-default-6.4.0-150600.23.103.1
    • kernel-syms-6.4.0-150600.23.103.1
    • kernel-obs-build-debugsource-6.4.0-150600.23.103.1
    • kernel-default-optional-6.4.0-150600.23.103.1
    • kernel-default-livepatch-6.4.0-150600.23.103.1
    • kselftests-kmp-default-6.4.0-150600.23.103.1
    • kernel-obs-qa-6.4.0-150600.23.103.1
    • kernel-default-debugsource-6.4.0-150600.23.103.1
    • kernel-obs-build-6.4.0-150600.23.103.1
    • gfs2-kmp-default-6.4.0-150600.23.103.1
    • kernel-default-devel-6.4.0-150600.23.103.1
    • dlm-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-devel-debuginfo-6.4.0-150600.23.103.1
    • cluster-md-kmp-default-6.4.0-150600.23.103.1
    • dlm-kmp-default-6.4.0-150600.23.103.1
    • kernel-default-debuginfo-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 nosrc)
    • kernel-default-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (aarch64 nosrc ppc64le x86_64)
    • kernel-kvmsmall-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (ppc64le s390x x86_64)
    • kernel-default-livepatch-devel-6.4.0-150600.23.103.1
    • kernel-livepatch-6_4_0-150600_23_103-default-1-150600.13.3.1
    • kernel-livepatch-6_4_0-150600_23_103-default-debuginfo-1-150600.13.3.1
    • kernel-livepatch-SLE15-SP6_Update_24-debugsource-1-150600.13.3.1
  • openSUSE Leap 15.6 (nosrc s390x)
    • kernel-zfcpdump-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (s390x)
    • kernel-zfcpdump-debugsource-6.4.0-150600.23.103.1
    • kernel-zfcpdump-debuginfo-6.4.0-150600.23.103.1
  • openSUSE Leap 15.6 (nosrc)
    • dtb-aarch64-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise High Availability Extension 15 SP6 (nosrc)
    • kernel-default-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise High Availability Extension 15 SP6 (aarch64 ppc64le s390x x86_64)
    • kernel-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-debugsource-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (noarch nosrc)
    • kernel-docs-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    • kernel-macros-6.4.0-150600.23.103.1
    • kernel-source-6.4.0-150600.23.103.1
    • kernel-devel-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    • cluster-md-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • gfs2-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-devel-6.4.0-150600.23.103.1
    • kernel-default-devel-debuginfo-6.4.0-150600.23.103.1
    • reiserfs-kmp-default-6.4.0-150600.23.103.1
    • kernel-syms-6.4.0-150600.23.103.1
    • kernel-default-debugsource-6.4.0-150600.23.103.1
    • kernel-obs-build-6.4.0-150600.23.103.1
    • kernel-obs-build-debugsource-6.4.0-150600.23.103.1
    • dlm-kmp-default-6.4.0-150600.23.103.1
    • gfs2-kmp-default-6.4.0-150600.23.103.1
    • cluster-md-kmp-default-6.4.0-150600.23.103.1
    • reiserfs-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-debuginfo-6.4.0-150600.23.103.1
    • dlm-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • ocfs2-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • ocfs2-kmp-default-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64 nosrc)
    • kernel-default-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le x86_64)
    • kernel-default-base-6.4.0-150600.23.103.1.150600.12.48.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 nosrc)
    • kernel-64kb-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64)
    • kernel-64kb-debugsource-6.4.0-150600.23.103.1
    • kernel-64kb-devel-6.4.0-150600.23.103.1
    • kernel-64kb-devel-debuginfo-6.4.0-150600.23.103.1
    • kernel-64kb-debuginfo-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (nosrc s390x)
    • kernel-zfcpdump-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server 15 SP6 LTSS (s390x)
    • kernel-zfcpdump-debugsource-6.4.0-150600.23.103.1
    • kernel-zfcpdump-debuginfo-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    • cluster-md-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • reiserfs-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • gfs2-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-default-devel-6.4.0-150600.23.103.1
    • kernel-default-devel-debuginfo-6.4.0-150600.23.103.1
    • reiserfs-kmp-default-6.4.0-150600.23.103.1
    • kernel-syms-6.4.0-150600.23.103.1
    • kernel-default-debugsource-6.4.0-150600.23.103.1
    • kernel-obs-build-6.4.0-150600.23.103.1
    • kernel-obs-build-debugsource-6.4.0-150600.23.103.1
    • kernel-default-base-6.4.0-150600.23.103.1.150600.12.48.1
    • gfs2-kmp-default-6.4.0-150600.23.103.1
    • cluster-md-kmp-default-6.4.0-150600.23.103.1
    • dlm-kmp-default-6.4.0-150600.23.103.1
    • kernel-default-debuginfo-6.4.0-150600.23.103.1
    • dlm-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • ocfs2-kmp-default-debuginfo-6.4.0-150600.23.103.1
    • ocfs2-kmp-default-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP6 (nosrc ppc64le x86_64)
    • kernel-default-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
    • kernel-macros-6.4.0-150600.23.103.1
    • kernel-source-6.4.0-150600.23.103.1
    • kernel-devel-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch nosrc)
    • kernel-docs-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Live Patching 15-SP6 (nosrc)
    • kernel-default-6.4.0-150600.23.103.1
  • SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
    • kernel-default-livepatch-6.4.0-150600.23.103.1
    • kernel-livepatch-SLE15-SP6_Update_24-debugsource-1-150600.13.3.1
    • kernel-default-debugsource-6.4.0-150600.23.103.1
    • kernel-default-livepatch-devel-6.4.0-150600.23.103.1
    • kernel-livepatch-6_4_0-150600_23_103-default-1-150600.13.3.1
    • kernel-default-debuginfo-6.4.0-150600.23.103.1
    • kernel-livepatch-6_4_0-150600_23_103-default-debuginfo-1-150600.13.3.1

References: