SUSE alert SUSE-SU-2026:1342-1 (kernel)
| From: | OPENSUSE-SECURITY-UPDATES <null@suse.de> | |
| To: | security-announce@lists.opensuse.org | |
| Subject: | SUSE-SU-2026:1342-1: important: Security update for the Linux Kernel | |
| Date: | Wed, 15 Apr 2026 16:30:34 -0000 | |
| Message-ID: | <177627063406.2041.8680684088228228845@6fd1d05cebf0> | |
| Archive-link: | Article |
# Security update for the Linux Kernel Announcement ID: SUSE-SU-2026:1342-1 Release Date: 2026-04-15T10:15:56Z Rating: important References: * bsc#1246057 * bsc#1257773 * bsc#1259797 * bsc#1260005 * bsc#1260009 * bsc#1260486 * bsc#1260730 Cross-References: * CVE-2025-38234 * CVE-2026-23103 * CVE-2026-23243 * CVE-2026-23272 * CVE-2026-23274 * CVE-2026-23293 * CVE-2026-23398 CVSS scores: * CVE-2025-38234 ( SUSE ): 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2025-38234 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2025-38234 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-23103 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-23103 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-23103 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-23103 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23243 ( 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-2026-23243 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23243 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23272 ( 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-2026-23272 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23272 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23274 ( 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-2026-23274 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23274 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23293 ( SUSE ): 5.9 CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-23293 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2026-23398 ( SUSE ): 5.9 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-23398 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * openSUSE Leap 15.3 * SUSE Linux Enterprise Micro 5.2 * SUSE Linux Enterprise Micro for Rancher 5.2 An update that solves seven vulnerabilities can now be installed. ## Description: The SUSE Linux Enterprise 15 SP3 kernel was updated to fix various security issues. The following security issues were fixed: * CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057). * CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773). * CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797). * CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009). * CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005). * CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486). * CVE-2026-23398: icmp: fix NULL pointer dereference in icmp_tag_validation() (bsc#1260730). ## 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 15.3 zypper in -t patch SUSE-2026-1342=1 * SUSE Linux Enterprise Micro 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1342=1 * SUSE Linux Enterprise Micro for Rancher 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1342=1 ## Package List: * openSUSE Leap 15.3 (noarch nosrc) * kernel-docs-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (noarch) * kernel-devel-5.3.18-150300.59.241.1 * kernel-source-5.3.18-150300.59.241.1 * kernel-source-vanilla-5.3.18-150300.59.241.1 * kernel-docs-html-5.3.18-150300.59.241.1 * kernel-macros-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64) * kernel-default-debugsource-5.3.18-150300.59.241.1 * kernel-obs-build-debugsource-5.3.18-150300.59.241.1 * gfs2-kmp-default-debuginfo-5.3.18-150300.59.241.1 * kernel-default-optional-5.3.18-150300.59.241.1 * cluster-md-kmp-default-5.3.18-150300.59.241.1 * reiserfs-kmp-default-debuginfo-5.3.18-150300.59.241.1 * kselftests-kmp-default-5.3.18-150300.59.241.1 * reiserfs-kmp-default-5.3.18-150300.59.241.1 * cluster-md-kmp-default-debuginfo-5.3.18-150300.59.241.1 * kernel-default-devel-5.3.18-150300.59.241.1 * ocfs2-kmp-default-5.3.18-150300.59.241.1 * kernel-default-extra-5.3.18-150300.59.241.1 * kernel-default-debuginfo-5.3.18-150300.59.241.1 * kernel-default-livepatch-5.3.18-150300.59.241.1 * dlm-kmp-default-5.3.18-150300.59.241.1 * kernel-default-base-rebuild-5.3.18-150300.59.241.1.150300.18.144.1 * kernel-obs-build-5.3.18-150300.59.241.1 * ocfs2-kmp-default-debuginfo-5.3.18-150300.59.241.1 * kernel-default-devel-debuginfo-5.3.18-150300.59.241.1 * kernel-syms-5.3.18-150300.59.241.1 * gfs2-kmp-default-5.3.18-150300.59.241.1 * kernel-default-extra-debuginfo-5.3.18-150300.59.241.1 * dlm-kmp-default-debuginfo-5.3.18-150300.59.241.1 * kernel-default-base-5.3.18-150300.59.241.1.150300.18.144.1 * kernel-default-optional-debuginfo-5.3.18-150300.59.241.1 * kernel-obs-qa-5.3.18-150300.59.241.1 * kselftests-kmp-default-debuginfo-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 nosrc) * kernel-default-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (ppc64le s390x x86_64) * kernel-default-livepatch-devel-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (nosrc ppc64le x86_64) * kernel-kvmsmall-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (ppc64le x86_64) * kernel-kvmsmall-devel-debuginfo-5.3.18-150300.59.241.1 * kernel-kvmsmall-debugsource-5.3.18-150300.59.241.1 * kernel-kvmsmall-debuginfo-5.3.18-150300.59.241.1 * kernel-kvmsmall-devel-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (aarch64 x86_64) * dlm-kmp-preempt-debuginfo-5.3.18-150300.59.241.1 * kselftests-kmp-preempt-5.3.18-150300.59.241.1 * ocfs2-kmp-preempt-debuginfo-5.3.18-150300.59.241.1 * gfs2-kmp-preempt-debuginfo-5.3.18-150300.59.241.1 * kernel-preempt-extra-debuginfo-5.3.18-150300.59.241.1 * reiserfs-kmp-preempt-5.3.18-150300.59.241.1 * kernel-preempt-optional-debuginfo-5.3.18-150300.59.241.1 * cluster-md-kmp-preempt-debuginfo-5.3.18-150300.59.241.1 * kernel-preempt-devel-debuginfo-5.3.18-150300.59.241.1 * reiserfs-kmp-preempt-debuginfo-5.3.18-150300.59.241.1 * dlm-kmp-preempt-5.3.18-150300.59.241.1 * kernel-preempt-optional-5.3.18-150300.59.241.1 * kernel-preempt-debuginfo-5.3.18-150300.59.241.1 * kselftests-kmp-preempt-debuginfo-5.3.18-150300.59.241.1 * gfs2-kmp-preempt-5.3.18-150300.59.241.1 * ocfs2-kmp-preempt-5.3.18-150300.59.241.1 * kernel-preempt-devel-5.3.18-150300.59.241.1 * kernel-preempt-extra-5.3.18-150300.59.241.1 * kernel-preempt-debugsource-5.3.18-150300.59.241.1 * cluster-md-kmp-preempt-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (aarch64 nosrc x86_64) * kernel-preempt-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (nosrc s390x) * kernel-zfcpdump-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (s390x) * kernel-zfcpdump-debugsource-5.3.18-150300.59.241.1 * kernel-zfcpdump-debuginfo-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (nosrc) * dtb-aarch64-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (aarch64) * dtb-altera-5.3.18-150300.59.241.1 * kernel-64kb-devel-debuginfo-5.3.18-150300.59.241.1 * reiserfs-kmp-64kb-5.3.18-150300.59.241.1 * dtb-arm-5.3.18-150300.59.241.1 * dtb-renesas-5.3.18-150300.59.241.1 * dtb-sprd-5.3.18-150300.59.241.1 * dtb-rockchip-5.3.18-150300.59.241.1 * dtb-exynos-5.3.18-150300.59.241.1 * dtb-zte-5.3.18-150300.59.241.1 * reiserfs-kmp-64kb-debuginfo-5.3.18-150300.59.241.1 * kernel-64kb-extra-5.3.18-150300.59.241.1 * dtb-hisilicon-5.3.18-150300.59.241.1 * dtb-nvidia-5.3.18-150300.59.241.1 * kernel-64kb-debugsource-5.3.18-150300.59.241.1 * dtb-amlogic-5.3.18-150300.59.241.1 * dtb-mediatek-5.3.18-150300.59.241.1 * dtb-amd-5.3.18-150300.59.241.1 * kernel-64kb-optional-debuginfo-5.3.18-150300.59.241.1 * dtb-qcom-5.3.18-150300.59.241.1 * dtb-socionext-5.3.18-150300.59.241.1 * dlm-kmp-64kb-debuginfo-5.3.18-150300.59.241.1 * cluster-md-kmp-64kb-debuginfo-5.3.18-150300.59.241.1 * dlm-kmp-64kb-5.3.18-150300.59.241.1 * kernel-64kb-extra-debuginfo-5.3.18-150300.59.241.1 * dtb-freescale-5.3.18-150300.59.241.1 * kernel-64kb-devel-5.3.18-150300.59.241.1 * gfs2-kmp-64kb-debuginfo-5.3.18-150300.59.241.1 * ocfs2-kmp-64kb-debuginfo-5.3.18-150300.59.241.1 * kernel-64kb-debuginfo-5.3.18-150300.59.241.1 * dtb-cavium-5.3.18-150300.59.241.1 * dtb-lg-5.3.18-150300.59.241.1 * cluster-md-kmp-64kb-5.3.18-150300.59.241.1 * kselftests-kmp-64kb-debuginfo-5.3.18-150300.59.241.1 * dtb-al-5.3.18-150300.59.241.1 * dtb-marvell-5.3.18-150300.59.241.1 * ocfs2-kmp-64kb-5.3.18-150300.59.241.1 * gfs2-kmp-64kb-5.3.18-150300.59.241.1 * dtb-broadcom-5.3.18-150300.59.241.1 * kselftests-kmp-64kb-5.3.18-150300.59.241.1 * dtb-allwinner-5.3.18-150300.59.241.1 * dtb-xilinx-5.3.18-150300.59.241.1 * kernel-64kb-optional-5.3.18-150300.59.241.1 * dtb-apm-5.3.18-150300.59.241.1 * openSUSE Leap 15.3 (aarch64 nosrc) * kernel-64kb-5.3.18-150300.59.241.1 * SUSE Linux Enterprise Micro 5.2 (aarch64 nosrc s390x x86_64) * kernel-default-5.3.18-150300.59.241.1 * SUSE Linux Enterprise Micro 5.2 (aarch64 x86_64) * kernel-default-base-5.3.18-150300.59.241.1.150300.18.144.1 * SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64) * kernel-default-debugsource-5.3.18-150300.59.241.1 * kernel-default-debuginfo-5.3.18-150300.59.241.1 * SUSE Linux Enterprise Micro 5.2 (noarch) * kernel-macros-5.3.18-150300.59.241.1 * kernel-source-5.3.18-150300.59.241.1 * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 nosrc s390x x86_64) * kernel-default-5.3.18-150300.59.241.1 * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 x86_64) * kernel-default-base-5.3.18-150300.59.241.1.150300.18.144.1 * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64) * kernel-default-debugsource-5.3.18-150300.59.241.1 * kernel-default-debuginfo-5.3.18-150300.59.241.1 * SUSE Linux Enterprise Micro for Rancher 5.2 (noarch) * kernel-macros-5.3.18-150300.59.241.1 * kernel-source-5.3.18-150300.59.241.1 ## References: * https://www.suse.com/security/cve/CVE-2025-38234.html * https://www.suse.com/security/cve/CVE-2026-23103.html * https://www.suse.com/security/cve/CVE-2026-23243.html * https://www.suse.com/security/cve/CVE-2026-23272.html * https://www.suse.com/security/cve/CVE-2026-23274.html * https://www.suse.com/security/cve/CVE-2026-23293.html * https://www.suse.com/security/cve/CVE-2026-23398.html * https://bugzilla.suse.com/show_bug.cgi?id=1246057 * https://bugzilla.suse.com/show_bug.cgi?id=1257773 * https://bugzilla.suse.com/show_bug.cgi?id=1259797 * https://bugzilla.suse.com/show_bug.cgi?id=1260005 * https://bugzilla.suse.com/show_bug.cgi?id=1260009 * https://bugzilla.suse.com/show_bug.cgi?id=1260486 * https://bugzilla.suse.com/show_bug.cgi?id=1260730
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