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    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Mon, 28 Sep 2026 23:33:12 +0000</lastBuildDate>
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      <title>CVE-2026-31553 — KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-31553</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;KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc()&lt;/p&gt;
&lt;p&gt;Using &amp;#34;(u64 __user *)hva + offset&amp;#34; to get the virtual addresses of S1/S2
descriptors looks really wrong, if offset is not zero. What we want to get
for swapping is hva + offset, not hva + offset*8. ;-)&lt;/p&gt;
&lt;p&gt;Fix it.&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;KVM: arm64: Fix the descriptor address in __kvm_at_swap_desc()&lt;/p&gt;
&lt;p&gt;Using &amp;#34;(u64 __user *)hva + offset&amp;#34; to get the virtual addresses of S1/S2
descriptors looks really wrong, if offset is not zero. What we want to get
for swapping is hva + offset, not hva + offset*8. ;-)&lt;/p&gt;
&lt;p&gt;Fix it.&lt;/p&gt;</content:encoded>
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