<div class="container">
<h1>Security update for the Linux Kernel RT (Live Patch 15 for SUSE Linux Enterprise 16)</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:23792-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-09-14T13:02:10Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>important</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271923">bsc#1271923</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271924">bsc#1271924</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271925">bsc#1271925</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273232">bsc#1273232</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1274074">bsc#1274074</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1274942">bsc#1274942</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1275458">bsc#1275458</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>
Cross-References:
</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-15811.html">CVE-2026-15811</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-15812.html">CVE-2026-15812</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-15813.html">CVE-2026-15813</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-64423.html">CVE-2026-64423</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-64561.html">CVE-2026-64561</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-64564.html">CVE-2026-64564</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-68138.html">CVE-2026-68138</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>CVSS scores:</th>
<td>
<ul class="list-group">
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15811</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15811</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15812</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15812</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15813</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-15813</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64423</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64423</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64561</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">9.3</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64561</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64561</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">8.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64564</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.5</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64564</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-64564</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-68138</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-68138</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.0</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-68138</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Enterprise Server for SAP applications 16.0</li>
<li class="list-group-item">SUSE Linux Micro 6.2</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves seven vulnerabilities can now be installed.</p>
<h2>Security update for the Linux Kernel RT (Live Patch 15 for SUSE Linux Enterprise 16)</h2>
<h3>Description:</h3>
<p>This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.36.1 fixes various security issues:</p>
<p>The following security issues were fixed:</p>
<ul>
<li>CVE-2026-64423: ipv4: igmp: remove multicast group from hash table on device destruction (bsc#1275458).</li>
<li>CVE-2026-64561: KVM: x86: Check for invalid/obsolete root <em>after</em> making MMU pages available (Zapscape) (bsc#1273232).</li>
<li>CVE-2026-64564: sctp: don't free the ASCONF's own transport in DEL-IP processing (SCTPhantom) (bsc#1274074).</li>
<li>CVE-2026-68138: net/sched: serialize qdisc_rtab_list against concurrent get/put (bsc#1274942).</li>
</ul>
<h2>Security update for kronosnet</h2>
<h3>Description:</h3>
<p>This update for kronosnet fixes the following issues:</p>
<ul>
<li>CVE-2026-15811: improper sanitization of sensitive memory locations following cryptographic configuration adjustments
can lead to potential exposure of encryption keys (bsc#1271923).</li>
<li>CVE-2026-15812: improper verification of packet origins allows for access control list (ACL) bypass via ID spoofing
(bsc#1271924).</li>
<li>CVE-2026-15813: improper validation during fragment reassembly can trigger memory corruption or out-of-bounds memory
access (bsc#1271925).</li>
</ul>
<h2>Patch Instructions:</h2>
<p>
To install this SUSE update use the SUSE recommended
installation methods like YaST online_update or "zypper patch".<br/>
Alternatively you can run the command listed for your product:
</p>
<ul class="list-group">
<li class="list-group-item">
SUSE Linux Micro 6.2
<br/>
<code>zypper in -t patch SUSE-SL-Micro-6.2-1681</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP applications 16.0
<br/>
<code>zypper in -t patch SUSE-SLES-16.0-1682</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Micro 6.2 (x86_64)
<ul>
<li>kernel-livepatch-6_12_0-160000_36-rt-debuginfo-3-160000.1.1</li>
<li>kernel-livepatch-SLE16-RT_Update_15-debugsource-3-160000.1.1</li>
<li>kernel-livepatch-6_12_0-160000_36-rt-3-160000.1.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
<ul>
<li>libknet1-crypto-nss-plugin-1.30-160000.4.1</li>
<li>libknet-devel-1.30-160000.4.1</li>
<li>libknet1-compress-zlib-plugin-debuginfo-1.30-160000.4.1</li>
<li>libknet1-1.30-160000.4.1</li>
<li>libknet1-compress-lzma-plugin-debuginfo-1.30-160000.4.1</li>
<li>libknet1-compress-plugins-all-1.30-160000.4.1</li>
<li>libknet1-crypto-openssl-plugin-debuginfo-1.30-160000.4.1</li>
<li>libnozzle1-debuginfo-1.30-160000.4.1</li>
<li>libknet1-compress-lzma-plugin-1.30-160000.4.1</li>
<li>kronosnet-debuginfo-1.30-160000.4.1</li>
<li>libnozzle1-1.30-160000.4.1</li>
<li>libknet1-compress-zstd-plugin-1.30-160000.4.1</li>
<li>libknet1-crypto-openssl-plugin-1.30-160000.4.1</li>
<li>libknet1-compress-lzo2-plugin-1.30-160000.4.1</li>
<li>libknet1-compress-lz4-plugin-1.30-160000.4.1</li>
<li>libknet1-compress-zlib-plugin-1.30-160000.4.1</li>
<li>libknet1-compress-zstd-plugin-debuginfo-1.30-160000.4.1</li>
<li>kronosnet-debugsource-1.30-160000.4.1</li>
<li>libknet1-debuginfo-1.30-160000.4.1</li>
<li>libknet1-compress-lzo2-plugin-debuginfo-1.30-160000.4.1</li>
<li>libnozzle-devel-1.30-160000.4.1</li>
<li>libknet1-compress-lz4-plugin-debuginfo-1.30-160000.4.1</li>
<li>libknet1-plugins-all-1.30-160000.4.1</li>
<li>libknet1-compress-bzip2-plugin-1.30-160000.4.1</li>
<li>libknet1-crypto-plugins-all-1.30-160000.4.1</li>
<li>libknet1-compress-bzip2-plugin-debuginfo-1.30-160000.4.1</li>
<li>libknet1-crypto-nss-plugin-debuginfo-1.30-160000.4.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-15811.html">https://www.suse.com/security/cve/CVE-2026-15811.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-15812.html">https://www.suse.com/security/cve/CVE-2026-15812.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-15813.html">https://www.suse.com/security/cve/CVE-2026-15813.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-64423.html">https://www.suse.com/security/cve/CVE-2026-64423.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-64561.html">https://www.suse.com/security/cve/CVE-2026-64561.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-64564.html">https://www.suse.com/security/cve/CVE-2026-64564.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-68138.html">https://www.suse.com/security/cve/CVE-2026-68138.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271923">https://bugzilla.suse.com/show_bug.cgi?id=1271923</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271924">https://bugzilla.suse.com/show_bug.cgi?id=1271924</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1271925">https://bugzilla.suse.com/show_bug.cgi?id=1271925</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1273232">https://bugzilla.suse.com/show_bug.cgi?id=1273232</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1274074">https://bugzilla.suse.com/show_bug.cgi?id=1274074</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1274942">https://bugzilla.suse.com/show_bug.cgi?id=1274942</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1275458">https://bugzilla.suse.com/show_bug.cgi?id=1275458</a>
</li>
</ul>
</div>