<div class="container">
<h1>Security update for the Linux Kernel</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:1978-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-05-18T11:53:13Z</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=1264013">bsc#1264013</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265209">bsc#1265209</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265308">bsc#1265308</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-2025-54518.html">CVE-2025-54518</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-46300.html">CVE-2026-46300</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-46333.html">CVE-2026-46333</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-2025-54518</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:H/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-2025-54518</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.4</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-54518</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-46300</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.6</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:N/PR:N/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-2026-46300</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-2026-46333</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-2026-46333</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Basesystem Module 15-SP7</li>
<li class="list-group-item">Development Tools Module 15-SP7</li>
<li class="list-group-item">Legacy Module 15-SP7</li>
<li class="list-group-item">Public Cloud Module 15-SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise High Availability Extension 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Live Patching 15-SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Workstation Extension 15 SP7</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves three vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues</p>
<p>The following security issues were fixed:</p>
<ul>
<li>CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache (bsc#1264013).</li>
<li>CVE-2026-46300: net: skbuff: propagate shared-frag marker through pskb_copy() (bsc#1265209).</li>
<li>CVE-2026-46333: ptrace: Logic bug in the Linux kernel's __ptrace_may_access() function (bsc#1265308).</li>
</ul>
<h2>Special Instructions and Notes:</h2>
<ul>
<li>Please reboot the system after installing this update.</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">
Basesystem Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1978=1</code>
</li>
<li class="list-group-item">
Development Tools Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-1978=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Availability Extension 15 SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HA-15-SP7-2026-1978=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Workstation Extension 15 SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-1978=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Live Patching 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2026-1978=1</code>
<br/>
Please note that this is the initial kernel livepatch without fixes itself,
this package is later updated by separate standalone kernel livepatch
updates.
</li>
<li class="list-group-item">
Legacy Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Legacy-15-SP7-2026-1978=1</code>
</li>
<li class="list-group-item">
Public Cloud Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP7-2026-1978=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>kernel-default-debugsource-6.4.0-150700.53.52.1</li>
<li>kernel-default-devel-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-default-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-default-devel-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (noarch)
<ul>
<li>kernel-devel-6.4.0-150700.53.52.1</li>
<li>kernel-macros-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (nosrc s390x)
<ul>
<li>kernel-zfcpdump-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (s390x)
<ul>
<li>kernel-zfcpdump-debugsource-6.4.0-150700.53.52.1</li>
<li>kernel-zfcpdump-debuginfo-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64 nosrc)
<ul>
<li>kernel-default-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64 ppc64le x86_64)
<ul>
<li>kernel-default-base-6.4.0-150700.53.52.1.150700.17.31.3</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64 nosrc)
<ul>
<li>kernel-64kb-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP7 (aarch64)
<ul>
<li>kernel-64kb-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-64kb-devel-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-64kb-debugsource-6.4.0-150700.53.52.1</li>
<li>kernel-64kb-devel-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Development Tools Module 15-SP7 (noarch nosrc)
<ul>
<li>kernel-docs-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>kernel-syms-6.4.0-150700.53.52.1</li>
<li>kernel-obs-build-6.4.0-150700.53.52.1</li>
<li>kernel-obs-build-debugsource-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Development Tools Module 15-SP7 (noarch)
<ul>
<li>kernel-source-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Availability Extension 15 SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>dlm-kmp-default-debuginfo-6.4.0-150700.53.52.1</li>
<li>ocfs2-kmp-default-6.4.0-150700.53.52.1</li>
<li>cluster-md-kmp-default-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-default-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-default-debugsource-6.4.0-150700.53.52.1</li>
<li>dlm-kmp-default-6.4.0-150700.53.52.1</li>
<li>gfs2-kmp-default-6.4.0-150700.53.52.1</li>
<li>gfs2-kmp-default-debuginfo-6.4.0-150700.53.52.1</li>
<li>cluster-md-kmp-default-6.4.0-150700.53.52.1</li>
<li>ocfs2-kmp-default-debuginfo-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Availability Extension 15 SP7 (nosrc)
<ul>
<li>kernel-default-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Workstation Extension 15 SP7 (nosrc)
<ul>
<li>kernel-default-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64)
<ul>
<li>kernel-default-debugsource-6.4.0-150700.53.52.1</li>
<li>kernel-default-extra-6.4.0-150700.53.52.1</li>
<li>kernel-default-extra-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-default-debuginfo-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Live Patching 15-SP7 (nosrc)
<ul>
<li>kernel-default-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Live Patching 15-SP7 (ppc64le s390x x86_64)
<ul>
<li>kernel-livepatch-6_4_0-150700_53_52-default-debuginfo-1-150700.15.7.1</li>
<li>kernel-default-livepatch-devel-6.4.0-150700.53.52.1</li>
<li>kernel-livepatch-SLE15-SP7_Update_14-debugsource-1-150700.15.7.1</li>
<li>kernel-livepatch-6_4_0-150700_53_52-default-1-150700.15.7.1</li>
<li>kernel-default-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-default-debugsource-6.4.0-150700.53.52.1</li>
<li>kernel-default-livepatch-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Legacy Module 15-SP7 (nosrc)
<ul>
<li>kernel-default-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Legacy Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>kernel-default-debugsource-6.4.0-150700.53.52.1</li>
<li>reiserfs-kmp-default-6.4.0-150700.53.52.1</li>
<li>reiserfs-kmp-default-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-default-debuginfo-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Public Cloud Module 15-SP7 (nosrc x86_64)
<ul>
<li>kernel-azure-6.4.0-150700.53.52.1</li>
</ul>
</li>
<li>
Public Cloud Module 15-SP7 (x86_64)
<ul>
<li>kernel-azure-debuginfo-6.4.0-150700.53.52.1</li>
<li>kernel-azure-debugsource-6.4.0-150700.53.52.1</li>
<li>kernel-azure-devel-6.4.0-150700.53.52.1</li>
<li>kernel-azure-devel-debuginfo-6.4.0-150700.53.52.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-54518.html">https://www.suse.com/security/cve/CVE-2025-54518.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-46300.html">https://www.suse.com/security/cve/CVE-2026-46300.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-46333.html">https://www.suse.com/security/cve/CVE-2026-46333.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1264013">https://bugzilla.suse.com/show_bug.cgi?id=1264013</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265209">https://bugzilla.suse.com/show_bug.cgi?id=1265209</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1265308">https://bugzilla.suse.com/show_bug.cgi?id=1265308</a>
</li>
</ul>
</div>