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    <title>Most recent entries from all</title>
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    <lastBuildDate>Thu, 08 Oct 2026 12:02:53 +0000</lastBuildDate>
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      <title>CVE-2026-80873 — KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-80873</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: nv: Write ESR_EL2 for injected nested SError exceptions&lt;/p&gt;
&lt;p&gt;kvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions
but not for SError. enter_exception64() does not write ESR_ELx for any
exception type, so the constructed syndrome is dropped. A guest L2
hypervisor taking a nested SError observes stale ESR_EL2.&lt;/p&gt;
&lt;p&gt;This affects both kvm_inject_nested_serror() and the EASE path in
kvm_inject_nested_sea().&lt;/p&gt;
&lt;p&gt;Write ESR_EL2 for except_type_serror, matching except_type_sync.&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: nv: Write ESR_EL2 for injected nested SError exceptions&lt;/p&gt;
&lt;p&gt;kvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions
but not for SError. enter_exception64() does not write ESR_ELx for any
exception type, so the constructed syndrome is dropped. A guest L2
hypervisor taking a nested SError observes stale ESR_EL2.&lt;/p&gt;
&lt;p&gt;This affects both kvm_inject_nested_serror() and the EASE path in
kvm_inject_nested_sea().&lt;/p&gt;
&lt;p&gt;Write ESR_EL2 for except_type_serror, matching except_type_sync.&lt;/p&gt;</content:encoded>
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