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SUSE Linux Micro 6.0 Kernel Important Patch for Eight Issues 2026-21078-1

An update that solves eight vulnerabilities can now be installed.. # Security update for the Linux Kernel (Live Patch 7 for SUSE Linux Enterprise Micro 6.0) Announcement ID: SUSE-SU-2026:21078-1 Release Date: 2026-04-09T13:20:43Z Rating: important References: * bsc#1252036 * bsc#1252689 * bsc#1253404 * bsc#1256780 * bsc#1257238 * bsc#1258051 * bsc#1258183 * bsc#1258784 Cross-References: * CVE-2025-39973 * CVE-2025-40018 * CVE-2025-40159 * CVE-2025-71120 * CVE-2026-22999 * CVE-2026-23074 * CVE-2026-23111 * CVE-2026-23209 CVSS scores: * CVE-2025-39973 ( 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-2025-39973 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-40018 ( 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-2025-40018 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-40159 ( 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-2025-40159 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-71120 ( 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-2025-71120 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2025-71120 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-22999 ( 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-2026-22999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-22999 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-23074 ( 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-2026-23074 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23074 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23074 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23111 ( 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-2026-23111 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23111 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23111 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23209 ( 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-2026-23209 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23209 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-23209 ( 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 Micro 6.0 An update that solves eight vulnerabilities can now be installed. ## Description: This update for the SUSE Linux Enterprise Kernel 6.4.0-29.1 fixes various security issues The following security issues were fixed: * CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252036). * CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252689). * CVE-2025-40159: xsk: Harden userspace-supplied xdp_desc validation (bsc#1253404). * CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256780). * CVE-2026-22999: net/sched: sch_qfq: do not free existing class in qfq_change_class() (bsc#1257238). * CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1258051). * CVE-2026-23111: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() (bsc#1258183). * CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink() (bsc#1258784). ## 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 Micro 6.0 zypper in -t patch SUSE-SLE-Micro-6.0-kernel-326=1 ## Package List: * SUSE Linux Micro 6.0(s390x x86_64) * kernel-livepatch-6_4_0-29-default-15-1.2 * kernel-livepatch-6_4_0-29-default-debuginfo-15-1.2 * kernel-livepatch-MICRO-6-0_Update_7-debugsource-15-1.2 ## References: * https://www.suse.com/security/cve/CVE-2025-39973.html * https://www.suse.com/security/cve/CVE-2025-40018.html * https://www.suse.com/security/cve/CVE-2025-40159.html * https://www.suse.com/security/cve/CVE-2025-71120.html * https://www.suse.com/security/cve/CVE-2026-22999.html * https://www.suse.com/security/cve/CVE-2026-23074.html * https://www.suse.com/security/cve/CVE-2026-23111.html * https://www.suse.com/security/cve/CVE-2026-23209.html * https://bugzilla.suse.com/show_bug.cgi?id=1252036 * https://bugzilla.suse.com/show_bug.cgi?id=1252689 * https://bugzilla.suse.com/show_bug.cgi?id=1253404 * https://bugzilla.suse.com/show_bug.cgi?id=1256780 * https://bugzilla.suse.com/show_bug.cgi?id=1257238 * https://bugzilla.suse.com/show_bug.cgi?id=1258051 * https://bugzilla.suse.com/show_bug.cgi?id=1258183 * https://bugzilla.suse.com/show_bug.cgi?id=1258784 . Eight vulnerabilities are resolved with this important SUSE Linux kernel update for Live Patch 7.. SUSE Linux Micro 6.0, kernel security, vulnerability patching, live patching. . Severity: Important. LinuxSecurity.com Team

Apr 13, 2026 •Important SuSE