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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Wed, 30 Sep 2026 03:37:17 +0000</lastBuildDate>
    <item>
      <title>CVE-2025-38688 — iommufd: Prevent ALIGN() overflow</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-38688</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;iommufd: Prevent ALIGN() overflow&lt;/p&gt;
&lt;p&gt;When allocating IOVA the candidate range gets aligned to the target
alignment. If the range is close to ULONG_MAX then the ALIGN() can
wrap resulting in a corrupted iova.&lt;/p&gt;
&lt;p&gt;Open code the ALIGN() using get_add_overflow() to prevent this.
This simplifies the checks as we don&amp;#39;t need to check for length earlier
either.&lt;/p&gt;
&lt;p&gt;Consolidate the two copies of this code under a single helper.&lt;/p&gt;
&lt;p&gt;This bug would allow userspace to create a mapping that overlaps with some
other mapping or a reserved range.&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;iommufd: Prevent ALIGN() overflow&lt;/p&gt;
&lt;p&gt;When allocating IOVA the candidate range gets aligned to the target
alignment. If the range is close to ULONG_MAX then the ALIGN() can
wrap resulting in a corrupted iova.&lt;/p&gt;
&lt;p&gt;Open code the ALIGN() using get_add_overflow() to prevent this.
This simplifies the checks as we don&amp;#39;t need to check for length earlier
either.&lt;/p&gt;
&lt;p&gt;Consolidate the two copies of this code under a single helper.&lt;/p&gt;
&lt;p&gt;This bug would allow userspace to create a mapping that overlaps with some
other mapping or a reserved range.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2025-38688</guid>
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