Security update for the Linux Kernel (Live Patch 42 for SUSE Linux Enterprise 15 SP4)

Announcement ID:	SUSE-SU-2026:3707-1
Release Date:	2026-08-23T12:04:09Z
Rating:	important
References:	bsc#1253437 bsc#1262213 bsc#1263791 bsc#1264078 bsc#1264483 bsc#1265306 bsc#1266668 bsc#1267362 bsc#1267625 bsc#1268281 bsc#1268624 bsc#1269034 bsc#1269196 bsc#1269284 bsc#1269822 bsc#1270023 bsc#1270024 bsc#1271543 bsc#1272139
Cross-References:	CVE-2023-53995 CVE-2025-40204 CVE-2026-23449 CVE-2026-31629 CVE-2026-31759 CVE-2026-43077 CVE-2026-43110 CVE-2026-43206 CVE-2026-46037 CVE-2026-46274 CVE-2026-46319 CVE-2026-46331 CVE-2026-52923 CVE-2026-52956 CVE-2026-52972 CVE-2026-53133 CVE-2026-53224 CVE-2026-53246 CVE-2026-64600
CVSS scores:	CVE-2023-53995 ( 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-2023-53995 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/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 CVE-2025-40204 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-23449 ( 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-2026-23449 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23449 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-31629 ( SUSE ): 8.7 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-31629 ( SUSE ): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-31629 ( NVD ): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-31759 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-31759 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVE-2026-31759 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-43077 ( 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-2026-43077 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-43077 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-43110 ( SUSE ): 7.7 CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-43110 ( SUSE ): 7.5 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-43110 ( NVD ): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-43206 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-43206 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46037 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-46037 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2026-46037 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2026-46274 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46274 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46319 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46319 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46331 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-46331 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46331 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2026-52923 ( 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-2026-52923 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-52923 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-52923 ( NVD ): 5.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H CVE-2026-52956 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-52956 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-52972 ( 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-2026-52972 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-52972 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-52972 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-53133 ( 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-2026-53133 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-53133 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-53224 ( 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-2026-53224 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-53224 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVE-2026-53246 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N CVE-2026-53246 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H CVE-2026-53246 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-64600 ( SUSE ): 8.8 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-64600 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-64600 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 19 vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.170 fixes various security issues:

The following security issues were fixed:

• CVE-2023-53995: net: ipv4: fix one memleak in __inet_del_ifa() (bsc#1269284).
• CVE-2025-40204,CVE-2026-53224,CVE-2026-53246: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing (bsc#1253437 bsc#1270023 bsc#1270024).
• CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1262213).
• CVE-2026-31629: nfc: llcp: add missing return after LLCP_CLOSED checks (bsc#1263791).
• CVE-2026-31759: usb: ulpi: fix double free in ulpi_register_interface() error path (bsc#1264078).
• CVE-2026-43077: crypto: algif_aead - Fix minimum RX size check for decryption (bsc#1265306).
• CVE-2026-43110: wifi: brcmfmac: validate bsscfg indices in IF events (bsc#1264483).
• CVE-2026-43206: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (bsc#1266668).
• CVE-2026-46037: ipv4: icmp: validate reply type before using icmp_pointers (bsc#1267362).
• CVE-2026-46274: io-wq: check that the predecessor is hashed in io_wq_remove_pending() (bsc#1268624).
• CVE-2026-46319: net/sched: act_ct: Only release RCU read lock after ct_ft (bsc#1268281).
• CVE-2026-46331: net/sched: fix pedit partial COW leading to page cache (bsc#1267625).
• CVE-2026-52923: ipc: limit next_id allocation to the valid ID range (bsc#1269034).
• CVE-2026-52956: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() (bsc#1272139).
• CVE-2026-52972: crypto: af_alg - Cap AEAD AD length to 0x80000000 (bsc#1269196).
• CVE-2026-53133: RDMA/umem: Fix truncation for block sizes >= 4G (bsc#1269822).
• CVE-2026-64600: xfs: resample the data fork mapping after cycling ILOCK (RefluXFS) (bsc#1271543).

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 Enterprise Live Patching 15-SP4
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-3707=1
• openSUSE Leap 15.4
  zypper in -t patch SUSE-2026-3707=1

Package List:

• SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150400_24_170-default-debuginfo-22-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_42-debugsource-22-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_170-default-22-150400.2.1
• openSUSE Leap 15.4 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150400_24_170-default-debuginfo-22-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_42-debugsource-22-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_170-default-22-150400.2.1

References:

• https://www.suse.com/security/cve/CVE-2023-53995.html
• https://www.suse.com/security/cve/CVE-2025-40204.html
• https://www.suse.com/security/cve/CVE-2026-23449.html
• https://www.suse.com/security/cve/CVE-2026-31629.html
• https://www.suse.com/security/cve/CVE-2026-31759.html
• https://www.suse.com/security/cve/CVE-2026-43077.html
• https://www.suse.com/security/cve/CVE-2026-43110.html
• https://www.suse.com/security/cve/CVE-2026-43206.html
• https://www.suse.com/security/cve/CVE-2026-46037.html
• https://www.suse.com/security/cve/CVE-2026-46274.html
• https://www.suse.com/security/cve/CVE-2026-46319.html
• https://www.suse.com/security/cve/CVE-2026-46331.html
• https://www.suse.com/security/cve/CVE-2026-52923.html
• https://www.suse.com/security/cve/CVE-2026-52956.html
• https://www.suse.com/security/cve/CVE-2026-52972.html
• https://www.suse.com/security/cve/CVE-2026-53133.html
• https://www.suse.com/security/cve/CVE-2026-53224.html
• https://www.suse.com/security/cve/CVE-2026-53246.html
• https://www.suse.com/security/cve/CVE-2026-64600.html
• https://bugzilla.suse.com/show_bug.cgi?id=1253437
• https://bugzilla.suse.com/show_bug.cgi?id=1262213
• https://bugzilla.suse.com/show_bug.cgi?id=1263791
• https://bugzilla.suse.com/show_bug.cgi?id=1264078
• https://bugzilla.suse.com/show_bug.cgi?id=1264483
• https://bugzilla.suse.com/show_bug.cgi?id=1265306
• https://bugzilla.suse.com/show_bug.cgi?id=1266668
• https://bugzilla.suse.com/show_bug.cgi?id=1267362
• https://bugzilla.suse.com/show_bug.cgi?id=1267625
• https://bugzilla.suse.com/show_bug.cgi?id=1268281
• https://bugzilla.suse.com/show_bug.cgi?id=1268624
• https://bugzilla.suse.com/show_bug.cgi?id=1269034
• https://bugzilla.suse.com/show_bug.cgi?id=1269196
• https://bugzilla.suse.com/show_bug.cgi?id=1269284
• https://bugzilla.suse.com/show_bug.cgi?id=1269822
• https://bugzilla.suse.com/show_bug.cgi?id=1270023
• https://bugzilla.suse.com/show_bug.cgi?id=1270024
• https://bugzilla.suse.com/show_bug.cgi?id=1271543
• https://bugzilla.suse.com/show_bug.cgi?id=1272139