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SUSE: Kernel Important Security Update Buffer Overflow 2026-0033-1

suse
Calendar Grey January 6, 2026
Dist Suse Esm H88
Important SUSE security update resolving multiple issues in kernel, enhancing stability and security for users. Instant installation advised.
An update that solves eight vulnerabilities and has one security fix can now be installed.

Summary

## The SUSE Linux Enterprise 15 SP4 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: * CVE-2022-50280: pnode: terminate at peers of source (bsc#1249806). * CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (bsc#1251786). * CVE-2025-39967: fbcon: fix integer overflow in fbcon_do_set_font (bsc#1252033). * CVE-2025-40040: mm/ksm: fix flag-dropping behavior in ksm_madvise (bsc#1252780). * CVE-2025-40048: uio_hv_generic: Let userspace take care of interrupt mask (bsc#1252862). * CVE-2025-40121: ASoC: Intel: bytcr_rt5651: Fix invalid quirk input mapping (bsc#1253367). * CVE-2025-40154: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping (bsc#1253431).

References

* bsc#1249806

* bsc#1251786

* bsc#1252033

* bsc#1252267

* bsc#1252780

* bsc#1252862

* bsc#1253367

* bsc#1253431

* bsc#1253436

Cross-

* CVE-2022-50280

* CVE-2023-53676

* CVE-2025-39967

* CVE-2025-40040

* CVE-2025-40048

* CVE-2025-40121

* CVE-2025-40154

* CVE-2025-40204

CVSS scores:

* CVE-2022-50280 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2022-50280 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* 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-2025-39967 ( SUSE ): 6.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

* CVE-2025-39967 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0033-1
Release Date: 2026-01-05T19:26:53Z
Rating: important

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