Security update for the Linux Kernel (Live Patch 29 for SUSE Linux Enterprise 15 SP5)

Announcement ID:	SUSE-SU-2026:0186-1
Release Date:	2026-01-20T12:45:55Z
Rating:	important
References:	bsc#1248400 bsc#1248615 bsc#1248670 bsc#1250665 bsc#1251165 bsc#1251203 bsc#1251787 bsc#1253437 bsc#1254451
Cross-References:	CVE-2022-50327 CVE-2022-50409 CVE-2022-50490 CVE-2023-53676 CVE-2024-58239 CVE-2025-38476 CVE-2025-38572 CVE-2025-38608 CVE-2025-40204
CVSS scores:	CVE-2022-50327 ( 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-2022-50327 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-50327 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2022-50409 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2022-50409 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-50409 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2022-50490 ( 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-2022-50490 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-53676 ( 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-2023-53676 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2024-58239 ( 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-2024-58239 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2024-58239 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-38476 ( 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-2025-38476 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-38476 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-38572 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2025-38572 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2025-38572 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2025-38608 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-38608 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2025-38608 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-40204 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2025-40204 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:	openSUSE Leap 15.5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Live Patching 15-SP5 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Real Time 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves nine vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise kernel 5.14.21-150500.55.116 fixes various security issues

The following security issues were fixed:

• CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1254451).
• CVE-2022-50409: net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory (bsc#1250665).
• CVE-2022-50490: bpf: Propagate error from htab_lock_bucket() to userspace (bsc#1251165).
• CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (bsc#1251787).
• CVE-2024-58239: tls: stop recv() if initial process_rx_list gave us non-DATA (bsc#1248615).
• CVE-2025-38476: rpl: Fix use-after-free in rpl_do_srh_inline() (bsc#1251203).
• CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248400).
• CVE-2025-38608: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls (bsc#1248670).
• CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437).

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 15.5
  zypper in -t patch SUSE-2026-186=1
• SUSE Linux Enterprise Live Patching 15-SP5
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-186=1

Package List:

• openSUSE Leap 15.5 (ppc64le s390x x86_64)
  • kernel-livepatch-SLE15-SP5_Update_29-debugsource-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_116-default-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_116-default-debuginfo-8-150500.2.1
• SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150500_55_116-default-8-150500.2.1
  • kernel-livepatch-5_14_21-150500_55_116-default-debuginfo-8-150500.2.1
• SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x)
  • kernel-livepatch-SLE15-SP5_Update_29-debugsource-8-150500.2.1

References:

• https://www.suse.com/security/cve/CVE-2022-50327.html
• https://www.suse.com/security/cve/CVE-2022-50409.html
• https://www.suse.com/security/cve/CVE-2022-50490.html
• https://www.suse.com/security/cve/CVE-2023-53676.html
• https://www.suse.com/security/cve/CVE-2024-58239.html
• https://www.suse.com/security/cve/CVE-2025-38476.html
• https://www.suse.com/security/cve/CVE-2025-38572.html
• https://www.suse.com/security/cve/CVE-2025-38608.html
• https://www.suse.com/security/cve/CVE-2025-40204.html
• https://bugzilla.suse.com/show_bug.cgi?id=1248400
• https://bugzilla.suse.com/show_bug.cgi?id=1248615
• https://bugzilla.suse.com/show_bug.cgi?id=1248670
• https://bugzilla.suse.com/show_bug.cgi?id=1250665
• https://bugzilla.suse.com/show_bug.cgi?id=1251165
• https://bugzilla.suse.com/show_bug.cgi?id=1251203
• https://bugzilla.suse.com/show_bug.cgi?id=1251787
• https://bugzilla.suse.com/show_bug.cgi?id=1253437
• https://bugzilla.suse.com/show_bug.cgi?id=1254451