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    <lastBuildDate>Thu, 01 Oct 2026 23:42:25 +0000</lastBuildDate>
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      <title>CVE-2026-64592 — riscv: mm: Unconditionally sfence.vma for spurious fault</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-64592</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: mm: Unconditionally sfence.vma for spurious fault&lt;/p&gt;
&lt;p&gt;Svvptc does not guarantee that it&amp;#39;s safe to just return here. Since we
have already cleared our bit, if, theoretically, the bounded timeframe
for the accessed page to become valid still hasn&amp;#39;t happened after sret,
we could fault again and actually crash.&lt;/p&gt;
&lt;p&gt;Hopefully, these spurious faults should be rare enough that this is an
acceptable slowdown.&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: mm: Unconditionally sfence.vma for spurious fault&lt;/p&gt;
&lt;p&gt;Svvptc does not guarantee that it&amp;#39;s safe to just return here. Since we
have already cleared our bit, if, theoretically, the bounded timeframe
for the accessed page to become valid still hasn&amp;#39;t happened after sret,
we could fault again and actually crash.&lt;/p&gt;
&lt;p&gt;Hopefully, these spurious faults should be rare enough that this is an
acceptable slowdown.&lt;/p&gt;</content:encoded>
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