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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
    <description>Contains only the most 10 recent entries.</description>
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    <lastBuildDate>Tue, 29 Sep 2026 23:46:12 +0000</lastBuildDate>
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      <title>CVE-2026-80687 — iommufd/viommu: Release the igroup lock on the vdevice_size error path</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-80687</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/viommu: Release the igroup lock on the vdevice_size error path&lt;/p&gt;
&lt;p&gt;iommufd_vdevice_alloc_ioctl() takes idev-&amp;gt;igroup-&amp;gt;lock, then validates the
driver&amp;#39;s vdevice_size against the core structure size with a WARN_ON_ONCE.
On failure that guard jumps to out_put_idev, below out_unlock_igroup, so it
skips the mutex_unlock(), leaving the igroup lock held and deadlocking the
next vDEVICE operation on that group.&lt;/p&gt;
&lt;p&gt;Jump to out_unlock_igroup instead.&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/viommu: Release the igroup lock on the vdevice_size error path&lt;/p&gt;
&lt;p&gt;iommufd_vdevice_alloc_ioctl() takes idev-&amp;gt;igroup-&amp;gt;lock, then validates the
driver&amp;#39;s vdevice_size against the core structure size with a WARN_ON_ONCE.
On failure that guard jumps to out_put_idev, below out_unlock_igroup, so it
skips the mutex_unlock(), leaving the igroup lock held and deadlocking the
next vDEVICE operation on that group.&lt;/p&gt;
&lt;p&gt;Jump to out_unlock_igroup instead.&lt;/p&gt;</content:encoded>
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