SUSE Linux 15 SP4 Kernel Protection Update covering CVE-2023-23456
suse
February 16, 2026
An update that solves three vulnerabilities and has one security fix can now be installed.
Summary
## This update for the SUSE Linux Enterprise kernel 4.12.14-122.250 fixes various security issues The following security issues were fixed: * CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250314). * CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205). * CVE-2025-40186: tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request() (bsc#1253439). The following non security issue was fixed: * bsc#1250280: don't expose {file,inode}_operations with static lifetimes Fix issue with static lifetime empty_iops/no_open_fops by allocating them on the heap. Make sure previously assigned instances don't become dangling. (bsc#1250280). ## Patch Instructions:
Topics Covered
References
* bsc#1249205
* bsc#1250280
* bsc#1250314
* bsc#1253439
Cross-
* CVE-2023-53321
* CVE-2025-38352
* CVE-2025-40186
CVSS scores:
* CVE-2023-53321 ( 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-2023-53321 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-53321 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
* CVE-2023-53321 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
* 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-2025-40186 ( SUSE ): 7.3
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Severity
important
Lowest
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Critical
Announcement ID: SUSE-SU-2026:0515-1
Release Date: 2026-02-13T23:04:16Z
Rating: important
Topics Covered
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