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SUSE Kernel Important Update 2026-1039-1 for 15 SP5 Fixes 11 Issues

suse
Calendar Grey March 25, 2026
Dist Suse Esm H88
The latest SUSE update addresses 11 important security issues in the Linux kernel, enhancing system integrity and performance.
An update that solves 11 vulnerabilities can now be installed.

Summary

## 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-2022-50697: mrp: introduce active flags to prevent UAF when applicant uninit (bsc#1255595). * CVE-2023-53257: wifi: mac80211: check S1G action frame size (bsc#1250730). * CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254755). * CVE-2025-21738: ata: libata-sff: ensure that we cannot write outside the allocated buffer (bsc#1257118). * CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (bsc#1257629). * CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247240). * CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work()

Topics%20covered

Topics Covered

security advisory SuSE issue important kernel linux

References

* bsc#1247240

* bsc#1250730

* bsc#1254755

* bsc#1255053

* bsc#1255378

* bsc#1255402

* bsc#1255595

* bsc#1256624

* bsc#1256644

* bsc#1257118

* bsc#1257629

Cross-

* CVE-2022-50697

* CVE-2023-53257

* CVE-2023-53781

* CVE-2025-21738

* CVE-2025-38159

* CVE-2025-38488

* CVE-2025-40258

* CVE-2025-68284

* CVE-2025-68285

* CVE-2025-68813

* CVE-2025-71085

CVSS scores:

* CVE-2022-50697 ( 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-2022-50697 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-53257 ( 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

* CVE-2023-53257 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-53257 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1039-1
Release Date: 2026-03-25T12:34:25Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE issue important kernel linux

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