<div class="container">
<h1>Security update for the Linux Kernel (Live Patch 27 for SLE 15 SP5)</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2025:02676-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2025-08-04T14:09:09Z</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=1245776">bsc#1245776</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1245793">bsc#1245793</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1245797">bsc#1245797</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-2025-21702.html">CVE-2025-21702</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-37752.html">CVE-2025-37752</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-37797.html">CVE-2025-37797</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-2025-21702</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-2025-37752</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-2025-37797</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>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">openSUSE Leap 15.5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Live Patching 12-SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Live Patching 15-SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.5</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP5</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves three vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for the Linux Kernel 5.14.21-150500_55_110 fixes several issues.</p>
<p>The following security issues were fixed:</p>
<ul>
<li>CVE-2025-37797: net_sched: hfsc: Fix a UAF vulnerability in class handling (bsc#1245793).</li>
<li>CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1245776).</li>
<li>CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (bsc#1245797).</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 Enterprise Live Patching 15-SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2025-2669=1 SUSE-SLE-Module-Live-Patching-15-SP5-2025-2670=1 SUSE-SLE-Module-Live-Patching-15-SP5-2025-2668=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.5
<br/>
<code>zypper in -t patch SUSE-2025-2670=1 SUSE-2025-2668=1 SUSE-2025-2669=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Live Patching 12-SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2025-2676=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
<ul>
<li>kernel-livepatch-SLE15-SP5_Update_27-debugsource-2-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_100-default-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_103-default-3-150500.2.1</li>
<li>kernel-livepatch-SLE15-SP5_Update_25-debugsource-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_100-default-debuginfo-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_103-default-debuginfo-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-2-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_110-default-2-150500.2.1</li>
<li>kernel-livepatch-SLE15-SP5_Update_26-debugsource-3-150500.2.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.5 (ppc64le s390x x86_64)
<ul>
<li>kernel-livepatch-SLE15-SP5_Update_26-debugsource-3-150500.2.1</li>
<li>kernel-livepatch-SLE15-SP5_Update_27-debugsource-2-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_100-default-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_103-default-3-150500.2.1</li>
<li>kernel-livepatch-SLE15-SP5_Update_25-debugsource-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_100-default-debuginfo-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_103-default-debuginfo-3-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_110-default-2-150500.2.1</li>
<li>kernel-livepatch-5_14_21-150500_55_110-default-debuginfo-2-150500.2.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
<ul>
<li>kgraft-patch-4_12_14-122_258-default-2-2.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-21702.html">https://www.suse.com/security/cve/CVE-2025-21702.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-37752.html">https://www.suse.com/security/cve/CVE-2025-37752.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-37797.html">https://www.suse.com/security/cve/CVE-2025-37797.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1245776">https://bugzilla.suse.com/show_bug.cgi?id=1245776</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1245793">https://bugzilla.suse.com/show_bug.cgi?id=1245793</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1245797">https://bugzilla.suse.com/show_bug.cgi?id=1245797</a>
</li>
</ul>
</div>