<?xml version='1.0' encoding='UTF-8'?>
<?xml-stylesheet href="/static/style.xsl" type="text/xsl"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/" version="2.0">
  <channel>
    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
    <description>Contains only the most 10 recent entries.</description>
    <docs>http://www.rssboard.org/rss-specification</docs>
    <generator>python-feedgen</generator>
    <language>en</language>
    <lastBuildDate>Tue, 29 Sep 2026 01:59:25 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-90192 — mailbox: qcom-cpucp: handle NULL data in send_data callback</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-90192</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;mailbox: qcom-cpucp: handle NULL data in send_data callback&lt;/p&gt;
&lt;p&gt;mailbox_clear_channel() calls mbox_send_message() with NULL data to
notify the remote side that the RX channel has been cleared.
qcom_cpucp_mbox_send_data() blindly dereferenced the data pointer,
causing a NULL pointer dereference kernel panic when invoked from
this path under PREEMPT_RT.&lt;/p&gt;
&lt;p&gt;Add an explicit NULL check and return early without writing to the
TX register, which is the correct behaviour for a channel-clear
notification.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;mailbox: qcom-cpucp: handle NULL data in send_data callback&lt;/p&gt;
&lt;p&gt;mailbox_clear_channel() calls mbox_send_message() with NULL data to
notify the remote side that the RX channel has been cleared.
qcom_cpucp_mbox_send_data() blindly dereferenced the data pointer,
causing a NULL pointer dereference kernel panic when invoked from
this path under PREEMPT_RT.&lt;/p&gt;
&lt;p&gt;Add an explicit NULL check and return early without writing to the
TX register, which is the correct behaviour for a channel-clear
notification.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-90192</guid>
    </item>
  </channel>
</rss>
