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SUSE: Kernel RT Security Update 2026:0146-1 Important Buffer Overflow Fix

suse
Calendar Grey January 19, 2026
Dist Suse Esm H88
This important SUSE update addresses four kernel vulnerabilities affecting Live Patch 3 for SLES 15 SP7.
An update that solves four vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise kernel 6.4.0-150700.7.13 fixes various security issues The following security issues were fixed: * CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (bsc#1251787). * CVE-2025-38608: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls (bsc#1248670). * CVE-2025-39682: tls: fix handling of zero-length records on the rx_list (bsc#1250192). * 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: * SUSE Linux Enterprise Live Patching 15-SP7

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important data corruption kernel-rt

References

* bsc#1248670

* bsc#1250192

* bsc#1251787

* bsc#1253437

Cross-

* CVE-2023-53676

* CVE-2025-38608

* CVE-2025-39682

* CVE-2025-40204

CVSS scores:

* 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-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-2025-39682 ( SUSE ): 7.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0146-1
Release Date: 2026-01-17T11:33:35Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important data corruption kernel-rt

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