<?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://cve.radiocsirt.org</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, 06 Oct 2026 03:57:28 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-93086 — firmware: arm_scmi: Avoid IDR updates while cleaning channels</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-93086</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;firmware: arm_scmi: Avoid IDR updates while cleaning channels&lt;/p&gt;
&lt;p&gt;scmi_cleanup_channels() walks the TX/RX channel IDRs with
idr_for_each() to free transport resources and destroy the dedicated
transport devices before calling idr_destroy().&lt;/p&gt;
&lt;p&gt;The destroy callback removed each entry from the same IDR being walked.
That is not needed for this cleanup path, and it is unsafe because
idr_for_each() has not advanced its radix-tree iterator while the
callback is running. Removing the current entry from the callback can
invalidate the iterator state. The callback also cannot be protected by
rcu_read_lock(), because scmi_device_destroy() may sleep.&lt;/p&gt;
&lt;p&gt;Leave IDR teardown to the following idr_destroy() call and keep the
callback limited to device destruction.&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;firmware: arm_scmi: Avoid IDR updates while cleaning channels&lt;/p&gt;
&lt;p&gt;scmi_cleanup_channels() walks the TX/RX channel IDRs with
idr_for_each() to free transport resources and destroy the dedicated
transport devices before calling idr_destroy().&lt;/p&gt;
&lt;p&gt;The destroy callback removed each entry from the same IDR being walked.
That is not needed for this cleanup path, and it is unsafe because
idr_for_each() has not advanced its radix-tree iterator while the
callback is running. Removing the current entry from the callback can
invalidate the iterator state. The callback also cannot be protected by
rcu_read_lock(), because scmi_device_destroy() may sleep.&lt;/p&gt;
&lt;p&gt;Leave IDR teardown to the following idr_destroy() call and keep the
callback limited to device destruction.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2026-93086</guid>
    </item>
  </channel>
</rss>
