<?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>Mon, 05 Oct 2026 12:32:25 +0000</lastBuildDate>
    <item>
      <title>CVE-2024-38667 — riscv: prevent pt_regs corruption for secondary idle threads</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2024-38667</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;riscv: prevent pt_regs corruption for secondary idle threads&lt;/p&gt;
&lt;p&gt;Top of the kernel thread stack should be reserved for pt_regs. However
this is not the case for the idle threads of the secondary boot harts.
Their stacks overlap with their pt_regs, so both may get corrupted.&lt;/p&gt;
&lt;p&gt;Similar issue has been fixed for the primary hart, see c7cdd96eca28
(&amp;#34;riscv: prevent stack corruption by reserving task_pt_regs(p) early&amp;#34;).
However that fix was not propagated to the secondary harts. The problem
has been noticed in some CPU hotplug tests with V enabled. The function
smp_callin stored several registers on stack, corrupting top of pt_regs
structure including status field. As a result, kernel attempted to save
or restore inexistent V context.&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;riscv: prevent pt_regs corruption for secondary idle threads&lt;/p&gt;
&lt;p&gt;Top of the kernel thread stack should be reserved for pt_regs. However
this is not the case for the idle threads of the secondary boot harts.
Their stacks overlap with their pt_regs, so both may get corrupted.&lt;/p&gt;
&lt;p&gt;Similar issue has been fixed for the primary hart, see c7cdd96eca28
(&amp;#34;riscv: prevent stack corruption by reserving task_pt_regs(p) early&amp;#34;).
However that fix was not propagated to the secondary harts. The problem
has been noticed in some CPU hotplug tests with V enabled. The function
smp_callin stored several registers on stack, corrupting top of pt_regs
structure including status field. As a result, kernel attempted to save
or restore inexistent V context.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2024-38667</guid>
    </item>
  </channel>
</rss>
