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SUSE Linux Enterprise 15 SP7 Kernel Important Update 2026-0556-1

suse
Calendar Grey February 16, 2026
Dist Suse Esm H88
Addressing important kernel update for SUSE Linux Enterprise 15 SP7 resolving multiple security issues and risks.
An update that solves four vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise kernel 6.4.0-150700.53.6 fixes various security issues The following security issues were fixed: * CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205). * CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480). * CVE-2025-40129: sunrpc: fix null pointer dereference on zero-length checksum (bsc#1253473). * CVE-2025-40186: tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request() (bsc#1253439). ## 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 security issue remote access important kernel SuSE Linux

References

* bsc#1249205

* bsc#1249480

* bsc#1253439

* bsc#1253473

Cross-

* CVE-2025-38352

* CVE-2025-39742

* CVE-2025-40129

* CVE-2025-40186

CVSS scores:

* CVE-2025-38352 ( 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-2025-38352 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38352 ( NVD ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-39742 ( 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-2025-39742 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-39742 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-40129 ( 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0556-1
Release Date: 2026-02-16T10:03:47Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue remote access important kernel SuSE Linux

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