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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Tue, 29 Sep 2026 03:30:23 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-46214 — vsock/virtio: fix accept queue count leak on transport mismatch</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-46214</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;vsock/virtio: fix accept queue count leak on transport mismatch&lt;/p&gt;
&lt;p&gt;virtio_transport_recv_listen() calls sk_acceptq_added() before
vsock_assign_transport(). If vsock_assign_transport() fails or
selects a different transport, the error path returns without
calling sk_acceptq_removed(), permanently incrementing
sk_ack_backlog.&lt;/p&gt;
&lt;p&gt;After approximately backlog+1 such failures, sk_acceptq_is_full()
returns true, causing the listener to reject all new connections.&lt;/p&gt;
&lt;p&gt;Fix by moving sk_acceptq_added() to after the transport validation,
matching the pattern used by vmci_transport and hyperv_transport.&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;vsock/virtio: fix accept queue count leak on transport mismatch&lt;/p&gt;
&lt;p&gt;virtio_transport_recv_listen() calls sk_acceptq_added() before
vsock_assign_transport(). If vsock_assign_transport() fails or
selects a different transport, the error path returns without
calling sk_acceptq_removed(), permanently incrementing
sk_ack_backlog.&lt;/p&gt;
&lt;p&gt;After approximately backlog+1 such failures, sk_acceptq_is_full()
returns true, causing the listener to reject all new connections.&lt;/p&gt;
&lt;p&gt;Fix by moving sk_acceptq_added() to after the transport validation,
matching the pattern used by vmci_transport and hyperv_transport.&lt;/p&gt;</content:encoded>
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