Security update for the Linux Kernel (Live Patch 13 for SUSE Linux Enterprise 15 SP7)

Announcement ID:	SUSE-SU-2026:3770-1
Release Date:	2026-08-24T23:04:45Z
Rating:	important
References:	bsc#1262213 bsc#1262404 bsc#1263791 bsc#1264483 bsc#1265306 bsc#1267362 bsc#1268281 bsc#1268624 bsc#1269034 bsc#1269196 bsc#1269282 bsc#1269822 bsc#1269885 bsc#1270023 bsc#1270024 bsc#1270300 bsc#1271543 bsc#1271867 bsc#1272139
Cross-References:	CVE-2026-23240 CVE-2026-23449 CVE-2026-31629 CVE-2026-43077 CVE-2026-43109 CVE-2026-43110 CVE-2026-46037 CVE-2026-46242 CVE-2026-46274 CVE-2026-46319 CVE-2026-52923 CVE-2026-52956 CVE-2026-52972 CVE-2026-53133 CVE-2026-53182 CVE-2026-53224 CVE-2026-53246 CVE-2026-64530 CVE-2026-64600
CVSS scores:	CVE-2026-23240 ( 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-2026-23240 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23240 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/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-2026-43077 ( 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-2026-43109 ( 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-2026-43109 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-43109 ( 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-2026-46037 ( 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-2026-46242 ( SUSE ): 8.9 CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-46242 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-46242 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2026-52923 ( 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-2026-53182 ( 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-2026-53182 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-53182 ( 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-2026-64530 ( SUSE ): 8.8 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-64530 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-64530 ( 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:	SUSE Linux Enterprise Live Patching 15-SP7 SUSE Linux Enterprise Real Time 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves 19 vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.45 fixes various security issues:

The following security issues were fixed:

• 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-2026-23240: Amend fix for CVE-2026-23240 ("tls: Fix race condition in tls_sw_cancel_work_tx()") (bsc#1262404).
• 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-2026-43077: crypto: algif_aead - Fix minimum RX size check for decryption (bsc#1265306).
• CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock (bsc#1269282).
• CVE-2026-43110: wifi: brcmfmac: validate bsscfg indices in IF events (bsc#1264483).
• CVE-2026-46037: ipv4: icmp: validate reply type before using icmp_pointers (bsc#1267362).
• CVE-2026-46242: eventpoll: fix ep_remove struct eventpoll / struct file UAF (bsc#1270300).
• 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-2026-52923: 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-2026-53182: wifi: nl80211: reject oversized EMA RNR lists (bsc#1269885).
• CVE-2026-64530: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_hand (bsc#1271867).
• 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-SP7
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2026-3770=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-3772=1 SUSE-SLE-Module-Live-Patching-15-SP7-2026-3773=1

Package List:

• SUSE Linux Enterprise Live Patching 15-SP7 (ppc64le s390x x86_64)
  • kernel-livepatch-6_4_0-150700_53_37-default-8-150700.2.1
  • kernel-livepatch-6_4_0-150700_53_45-default-6-150700.2.1
  • kernel-livepatch-6_4_0-150700_53_45-default-debuginfo-6-150700.2.1
  • kernel-livepatch-6_4_0-150700_53_40-default-7-150700.2.1
  • kernel-livepatch-6_4_0-150700_53_37-default-debuginfo-8-150700.2.1
  • kernel-livepatch-SLE15-SP7_Update_12-debugsource-7-150700.2.1
  • kernel-livepatch-SLE15-SP7_Update_11-debugsource-8-150700.2.1
  • kernel-livepatch-SLE15-SP7_Update_13-debugsource-6-150700.2.1
  • kernel-livepatch-6_4_0-150700_53_40-default-debuginfo-7-150700.2.1

References:

• https://www.suse.com/security/cve/CVE-2026-23240.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-2026-43077.html
• https://www.suse.com/security/cve/CVE-2026-43109.html
• https://www.suse.com/security/cve/CVE-2026-43110.html
• https://www.suse.com/security/cve/CVE-2026-46037.html
• https://www.suse.com/security/cve/CVE-2026-46242.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-2026-52923.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-2026-53182.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-2026-64530.html
• https://www.suse.com/security/cve/CVE-2026-64600.html
• https://bugzilla.suse.com/show_bug.cgi?id=1262213
• https://bugzilla.suse.com/show_bug.cgi?id=1262404
• https://bugzilla.suse.com/show_bug.cgi?id=1263791
• 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=1267362
• 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=1269282
• https://bugzilla.suse.com/show_bug.cgi?id=1269822
• https://bugzilla.suse.com/show_bug.cgi?id=1269885
• 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=1270300
• https://bugzilla.suse.com/show_bug.cgi?id=1271543
• https://bugzilla.suse.com/show_bug.cgi?id=1271867
• https://bugzilla.suse.com/show_bug.cgi?id=1272139