Security update for the Linux Kernel (Live Patch 43 for SUSE Linux Enterprise 15 SP4)

Announcement ID:	SUSE-SU-2026:0985-1
Release Date:	2026-03-24T06:34:23Z
Rating:	important
References:	bsc#1247240 bsc#1254755 bsc#1255053 bsc#1255378 bsc#1255402 bsc#1255595 bsc#1256624 bsc#1256644 bsc#1257118 bsc#1257629
Cross-References:	CVE-2022-50697 CVE-2023-53781 CVE-2025-21738 CVE-2025-38159 CVE-2025-38488 CVE-2025-40258 CVE-2025-68284 CVE-2025-68285 CVE-2025-68813 CVE-2025-71085
CVSS scores:	CVE-2022-50697 ( 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-2022-50697 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-53781 ( 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-2023-53781 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-21738 ( 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-2025-21738 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-21738 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 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-2025-68284 ( SUSE ): 7.0 CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-68284 ( SUSE ): 7.3 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVE-2025-68285 ( 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-2025-68285 ( 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:	openSUSE Leap 15.4 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Live Patching 15-SP4 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Real Time 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that solves 10 vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.173 fixes various security issues

The following security issues were fixed:

• CVE-2022-50697: mrp: introduce active flags to prevent UAF when applicant uninit (bsc#1255595).
• CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254755).
• CVE-2025-21738: ata: libata-sff: ensure that we cannot write outside the allocated buffer (bsc#1257118).
• 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-2025-68284: libceph: prevent potential out-of-bounds writes in handle_auth_session_key() (bsc#1255378).
• CVE-2025-68285: libceph: fix potential use-after-free in have_mon_and_osd_map() (bsc#1255402).
• 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:

• openSUSE Leap 15.4
  zypper in -t patch SUSE-2026-985=1 SUSE-2026-986=1 SUSE-2026-989=1 SUSE-2026-988=1
• SUSE Linux Enterprise Live Patching 15-SP4
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-985=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-986=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-989=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-988=1

Package List:

• openSUSE Leap 15.4 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP4_Update_39-debugsource-15-150400.2.2
  • kernel-livepatch-SLE15-SP4_Update_42-debugsource-13-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_173-default-debuginfo-10-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_170-default-debuginfo-13-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_161-default-15-150400.2.2
  • kernel-livepatch-SLE15-SP4_Update_38-debugsource-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_158-default-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_161-default-debuginfo-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_173-default-10-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_158-default-debuginfo-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_170-default-13-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_43-debugsource-10-150400.2.1
• SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP4_Update_39-debugsource-15-150400.2.2
  • kernel-livepatch-SLE15-SP4_Update_42-debugsource-13-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_173-default-debuginfo-10-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_170-default-debuginfo-13-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_161-default-15-150400.2.2
  • kernel-livepatch-SLE15-SP4_Update_38-debugsource-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_158-default-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_161-default-debuginfo-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_173-default-10-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_158-default-debuginfo-15-150400.2.2
  • kernel-livepatch-5_14_21-150400_24_170-default-13-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_43-debugsource-10-150400.2.1

References:

• https://www.suse.com/security/cve/CVE-2022-50697.html
• https://www.suse.com/security/cve/CVE-2023-53781.html
• https://www.suse.com/security/cve/CVE-2025-21738.html
• 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-2025-68284.html
• https://www.suse.com/security/cve/CVE-2025-68285.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=1254755
• https://bugzilla.suse.com/show_bug.cgi?id=1255053
• https://bugzilla.suse.com/show_bug.cgi?id=1255378
• https://bugzilla.suse.com/show_bug.cgi?id=1255402
• https://bugzilla.suse.com/show_bug.cgi?id=1255595
• 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=1257118
• https://bugzilla.suse.com/show_bug.cgi?id=1257629