SUSE-SU-2026:0033-1: important: Security update for the Linux Kernel
SLE-SECURITY-UPDATES
null at suse.de
Tue Jan 6 08:30:18 UTC 2026
# Security update for the Linux Kernel
Announcement ID: SUSE-SU-2026:0033-1
Release Date: 2026-01-05T19:26:53Z
Rating: important
References:
* bsc#1249806
* bsc#1251786
* bsc#1252033
* bsc#1252267
* bsc#1252780
* bsc#1252862
* bsc#1253367
* bsc#1253431
* bsc#1253436
Cross-References:
* 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
* CVE-2025-40040 ( SUSE ): 6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2025-40040 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2025-40048 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2025-40121 ( SUSE ): 7.1
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2025-40121 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
* CVE-2025-40154 ( SUSE ): 7.1
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2025-40154 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/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
* CVE-2025-40204 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
* SUSE Linux Enterprise Micro 5.3
* SUSE Linux Enterprise Micro 5.4
* SUSE Linux Enterprise Micro for Rancher 5.3
* SUSE Linux Enterprise Micro for Rancher 5.4
An update that solves eight vulnerabilities and has one security fix can now be
installed.
## Description:
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).
* CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253436).
The following non-security bugs were fixed:
* scsi: storvsc: Prefer returning channel with the same CPU as on the I/O
issuing CPU (bsc#1252267).
## Special Instructions and Notes:
* Please reboot the system after installing this update.
## 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 Micro for Rancher 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-33=1
* SUSE Linux Enterprise Micro 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2026-33=1
* SUSE Linux Enterprise Micro for Rancher 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-33=1
* SUSE Linux Enterprise Micro 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2026-33=1
## Package List:
* SUSE Linux Enterprise Micro for Rancher 5.3 (nosrc x86_64)
* kernel-rt-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro for Rancher 5.3 (x86_64)
* kernel-rt-debugsource-5.14.21-150400.15.139.2
* kernel-rt-debuginfo-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro for Rancher 5.3 (noarch)
* kernel-source-rt-5.14.21-150400.15.139.1
* SUSE Linux Enterprise Micro 5.3 (nosrc x86_64)
* kernel-rt-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro 5.3 (x86_64)
* kernel-rt-debugsource-5.14.21-150400.15.139.2
* kernel-rt-debuginfo-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro 5.3 (noarch)
* kernel-source-rt-5.14.21-150400.15.139.1
* SUSE Linux Enterprise Micro for Rancher 5.4 (nosrc x86_64)
* kernel-rt-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro for Rancher 5.4 (x86_64)
* kernel-rt-debugsource-5.14.21-150400.15.139.2
* kernel-rt-debuginfo-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro for Rancher 5.4 (noarch)
* kernel-source-rt-5.14.21-150400.15.139.1
* SUSE Linux Enterprise Micro 5.4 (nosrc x86_64)
* kernel-rt-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro 5.4 (x86_64)
* kernel-rt-debugsource-5.14.21-150400.15.139.2
* kernel-rt-debuginfo-5.14.21-150400.15.139.2
* SUSE Linux Enterprise Micro 5.4 (noarch)
* kernel-source-rt-5.14.21-150400.15.139.1
## References:
* https://www.suse.com/security/cve/CVE-2022-50280.html
* https://www.suse.com/security/cve/CVE-2023-53676.html
* https://www.suse.com/security/cve/CVE-2025-39967.html
* https://www.suse.com/security/cve/CVE-2025-40040.html
* https://www.suse.com/security/cve/CVE-2025-40048.html
* https://www.suse.com/security/cve/CVE-2025-40121.html
* https://www.suse.com/security/cve/CVE-2025-40154.html
* https://www.suse.com/security/cve/CVE-2025-40204.html
* https://bugzilla.suse.com/show_bug.cgi?id=1249806
* https://bugzilla.suse.com/show_bug.cgi?id=1251786
* https://bugzilla.suse.com/show_bug.cgi?id=1252033
* https://bugzilla.suse.com/show_bug.cgi?id=1252267
* https://bugzilla.suse.com/show_bug.cgi?id=1252780
* https://bugzilla.suse.com/show_bug.cgi?id=1252862
* https://bugzilla.suse.com/show_bug.cgi?id=1253367
* https://bugzilla.suse.com/show_bug.cgi?id=1253431
* https://bugzilla.suse.com/show_bug.cgi?id=1253436
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