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    <title>Most recent entries from all</title>
    <link>https://db.gcve.eu</link>
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    <lastBuildDate>Wed, 11 Nov 2026 21:19:53 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-98459 — Bluetooth: ISO: balance the parent hold in hci_bind_bis()</title>
      <link>https://db.gcve.eu/vuln/cve-2026-98459</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;Bluetooth: ISO: balance the parent hold in hci_bind_bis()&lt;/p&gt;
&lt;p&gt;hci_conn_link() takes a lifetime reference to its parent with
hci_conn_get(), but only takes an operational hold on the child.
hci_conn_unlink() later balances both a hold and a reference on the
parent.&lt;/p&gt;
&lt;p&gt;The SCO and CIS paths pass a parent acquired from a connect helper, so
it already has a hold. For an additional BIS, hci_bind_bis() obtains the
parent from hci_conn_hash_lookup_big(), which returns a bare pointer.
Unlinking the child then drops the parent&amp;#39;s existing hold and can
schedule it for disconnection while its socket is still using it.&lt;/p&gt;
&lt;p&gt;Take a hold on the parent before linking it and drop that hold if linking
fails. A successful link transfers the hold to hci_conn_unlink().&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;Bluetooth: ISO: balance the parent hold in hci_bind_bis()&lt;/p&gt;
&lt;p&gt;hci_conn_link() takes a lifetime reference to its parent with
hci_conn_get(), but only takes an operational hold on the child.
hci_conn_unlink() later balances both a hold and a reference on the
parent.&lt;/p&gt;
&lt;p&gt;The SCO and CIS paths pass a parent acquired from a connect helper, so
it already has a hold. For an additional BIS, hci_bind_bis() obtains the
parent from hci_conn_hash_lookup_big(), which returns a bare pointer.
Unlinking the child then drops the parent&amp;#39;s existing hold and can
schedule it for disconnection while its socket is still using it.&lt;/p&gt;
&lt;p&gt;Take a hold on the parent before linking it and drop that hold if linking
fails. A successful link transfers the hold to hci_conn_unlink().&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://db.gcve.eu/vuln/cve-2026-98459</guid>
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