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    <lastBuildDate>Thu, 08 Oct 2026 15:41:38 +0000</lastBuildDate>
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      <title>CVE-2024-53241 — x86/xen: don't do PV iret hypercall through hypercall page</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2024-53241</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;x86/xen: don&amp;#39;t do PV iret hypercall through hypercall page&lt;/p&gt;
&lt;p&gt;Instead of jumping to the Xen hypercall page for doing the iret
hypercall, directly code the required sequence in xen-asm.S.&lt;/p&gt;
&lt;p&gt;This is done in preparation of no longer using hypercall page at all,
as it has shown to cause problems with speculation mitigations.&lt;/p&gt;
&lt;p&gt;This is part of XSA-466 / CVE-2024-53241.&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;x86/xen: don&amp;#39;t do PV iret hypercall through hypercall page&lt;/p&gt;
&lt;p&gt;Instead of jumping to the Xen hypercall page for doing the iret
hypercall, directly code the required sequence in xen-asm.S.&lt;/p&gt;
&lt;p&gt;This is done in preparation of no longer using hypercall page at all,
as it has shown to cause problems with speculation mitigations.&lt;/p&gt;
&lt;p&gt;This is part of XSA-466 / CVE-2024-53241.&lt;/p&gt;</content:encoded>
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