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openSUSE Leap 16.0 Kernel Important Threat Fixes 2026-20120-1

opensuse
Calendar Grey February 3, 2026
Dist Opensuse Esm H88
An important security update addresses vulnerabilities in the openSUSE kernel, enhancing system stability and integrity.
An update that solves 3 vulnerabilities and has 4 bug fixes can now be installed.

Description

This update for the SUSE Linux Enterprise kernel 6.12.0-160000.6.1 fixes various security issues

The following security issues were fixed:

- CVE-2025-39963: io_uring: fix incorrect io_kiocb reference in io_link_skb (bsc#1251982).

- CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437).

- CVE-2025-40212: nfsd: fix refcount leak in nfsd_set_fh_dentry() (bsc#1254196).

The following non security issues was fixed:

- Explicitly add module-common.c with vermagic and retpoline modinfo (bsc#1252270).

Patch instructions:

To install this openSUSE security update use the suse recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

zypper in -t patch openSUSE-Leap-16.0-205=1

Topics%20covered

Topics Covered

security advisory security issue bug fix important kernel OpenSUSE

Patch

Package List

- openSUSE Leap 16.0:

kernel-livepatch-6_12_0-160000_6-default-3-160000.1.1

References

* bsc#1251982

* bsc#1252270

* bsc#1253437

* bsc#1254196

References:

* https://www.suse.com/security/cve/CVE-2025-39963.html

* https://www.suse.com/security/cve/CVE-2025-40204.html

* https://www.suse.com/security/cve/CVE-2025-40212.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:20120-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory security issue bug fix important kernel OpenSUSE

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