Alerts This Week
Warning Icon 1 640
Alerts This Week
Warning Icon 1 640

openSUSE 15.6 Kernel Important Security Fix 2026-0550-1

opensuse
Calendar Grey February 16, 2026
Dist Opensuse Esm H88
This update addresses important kernel issues in openSUSE, improving security against several vulnerabilities.
An update that solves three vulnerabilities can now be installed.

Description

This update for the SUSE Linux Enterprise kernel 6.4.0-150600.23.65 fixes

various security issues

The following security issues were fixed:

* CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in

find_hw_thread_mask() (bsc#1249480).

* CVE-2025-40129: sunrpc: fix null pointer dereference on zero-length checksum

(bsc#1253473).

* CVE-2025-40186: tcp: Don't call reqsk_fastopen_remove() in

tcp_conn_request() (bsc#1253439).

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow important kernel OpenSUSE

Patch

## 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:

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-550=1

* SUSE Linux Enterprise Live Patching 15-SP6

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-550=1

Package List

* openSUSE Leap 15.6 (ppc64le s390x x86_64)

* kernel-livepatch-6_4_0-150600_23_65-default-6-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_14-debugsource-6-150600.2.1

* kernel-livepatch-6_4_0-150600_23_65-default-debuginfo-6-150600.2.1

* SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)

* kernel-livepatch-6_4_0-150600_23_65-default-6-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_14-debugsource-6-150600.2.1

* kernel-livepatch-6_4_0-150600_23_65-default-debuginfo-6-150600.2.1

References

* bsc#1249480

* bsc#1253439

* bsc#1253473

## References:

* https://www.suse.com/security/cve/CVE-2025-39742.html

* https://www.suse.com/security/cve/CVE-2025-40129.html

* https://www.suse.com/security/cve/CVE-2025-40186.html

* https://bugzilla.suse.com/show_bug.cgi?id=1249480

* https://bugzilla.suse.com/show_bug.cgi?id=1253439

* https://bugzilla.suse.com/show_bug.cgi?id=1253473

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0550-1
Release Date: 2026-02-16T05:33:35Z
Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Live Patching 15-SP6 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow important kernel OpenSUSE

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here