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      <title>CVE-2025-22012 — Revert "arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu"</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2025-22012</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;Revert &amp;#34;arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu&amp;#34;&lt;/p&gt;
&lt;p&gt;There are reports that the pagetable walker cache coherency is not a
given across the spectrum of SDM845/850 devices, leading to lock-ups
and resets. It works fine on some devices (like the Dragonboard 845c,
but not so much on the Lenovo Yoga C630).&lt;/p&gt;
&lt;p&gt;This unfortunately looks like a fluke in firmware development, where
likely somewhere in the vast hypervisor stack, a change to accommodate
for this was only introduced after the initial software release (which
often serves as a baseline for products).&lt;/p&gt;
&lt;p&gt;Revert the change to avoid additional guesswork around crashes.&lt;/p&gt;
&lt;p&gt;This reverts commit 6b31a9744b8726c69bb0af290f8475a368a4b805.&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;Revert &amp;#34;arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu&amp;#34;&lt;/p&gt;
&lt;p&gt;There are reports that the pagetable walker cache coherency is not a
given across the spectrum of SDM845/850 devices, leading to lock-ups
and resets. It works fine on some devices (like the Dragonboard 845c,
but not so much on the Lenovo Yoga C630).&lt;/p&gt;
&lt;p&gt;This unfortunately looks like a fluke in firmware development, where
likely somewhere in the vast hypervisor stack, a change to accommodate
for this was only introduced after the initial software release (which
often serves as a baseline for products).&lt;/p&gt;
&lt;p&gt;Revert the change to avoid additional guesswork around crashes.&lt;/p&gt;
&lt;p&gt;This reverts commit 6b31a9744b8726c69bb0af290f8475a368a4b805.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2025-22012</guid>
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