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SUSE Linux Micro 6.1 Kernel Key Buffer Overflow Patch SUSE-SU-2026-20780-1

An update that solves seven vulnerabilities can now be installed.. # Security update for the Linux Kernel (Live Patch 6 for SUSE Linux Enterprise Micro 6.0) Announcement ID: SUSE-SU-2026:20780-1 Release Date: 2026-03-23T10:27:52Z Rating: important References: * bsc#1247240 * bsc#1255053 * bsc#1255895 * bsc#1256624 * bsc#1256644 * bsc#1257629 * bsc#1257669 Cross-References: * CVE-2025-38159 * CVE-2025-38488 * CVE-2025-40258 * CVE-2025-40284 * CVE-2025-40297 * CVE-2025-68813 * CVE-2025-71085 CVSS scores: * CVE-2025-38159 ( 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-2025-38159 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-38159 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H * CVE-2025-38488 ( 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-2025-38488 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-38488 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-40258 ( 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-2025-40258 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-40284 ( 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-2025-40284 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-40297 ( 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-2025-40297 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-68813 ( 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-2025-68813 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2025-71085 ( 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-2025-71085 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * SUSE Linux Micro 6.1 An updatethat solves seven vulnerabilities can now be installed. ## Description: This update for the SUSE Linux Enterprise Kernel 6.4.0-28.1 fixes various security issues The following security issues were fixed: * CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (bsc#1257629). * CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247240). * CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1255053). * CVE-2025-40284: Bluetooth: MGMT: cancel mesh send timer when hdev removed (bsc#1257669). * CVE-2025-40297: net: bridge: fix use-after-free due to MST port state bypass (bsc#1255895). * CVE-2025-68813: ipvs: fix ipv4 null-ptr-deref in route error path (bsc#1256644). * CVE-2025-71085: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (bsc#1256624). ## 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 6.1 zypper in -t patch SUSE-SLE- Micro-6.1-SUSE_SLFO_Kernel_1.0_Build__patchinfo.20260319170317582267.216358544319405=1 ## Package List: * SUSE Linux Micro 6.1 (s390x x86_64) * kernel-livepatch-MICRO-6-0_Update_6-debugsource-15-3.1 * kernel-livepatch-6_4_0-28-default-debuginfo-15-3.1 * kernel-livepatch-6_4_0-28-default-15-3.1 ## References: * https://www.suse.com/security/cve/CVE-2025-38159.html * https://www.suse.com/security/cve/CVE-2025-38488.html * https://www.suse.com/security/cve/CVE-2025-40258.html * https://www.suse.com/security/cve/CVE-2025-40284.html * https://www.suse.com/security/cve/CVE-2025-40297.html * https://www.suse.com/security/cve/CVE-2025-68813.html * https://www.suse.com/security/cve/CVE-2025-71085.html * https://bugzilla.suse.com/show_bug.cgi?id=1247240 * https://bugzilla.suse.com/show_bug.cgi?id=1255053 *https://bugzilla.suse.com/show_bug.cgi?id=1255895 * https://bugzilla.suse.com/show_bug.cgi?id=1256624 * https://bugzilla.suse.com/show_bug.cgi?id=1256644 * https://bugzilla.suse.com/show_bug.cgi?id=1257629 * https://bugzilla.suse.com/show_bug.cgi?id=1257669 . Critical update available for SUSE Linux Micro 6.0, resolving seven issues including buffer overflow vulnerabilities.. SUSE Linux Micro Kernel Update Security Issues. . Severity: Important. LinuxSecurity.com Team

Mar 24, 2026 •Important SuSE