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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 18:10:15 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-89899 — media: cec: disable delayed work before freeing an interrupted transmit</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-89899</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;media: cec: disable delayed work before freeing an interrupted transmit&lt;/p&gt;
&lt;p&gt;cec_transmit_msg_fh() drops adap-&amp;gt;lock to wait for a blocking transmit in
wait_for_completion_killable(). If that wait is interrupted by a signal,
cancel_delayed_work_sync() can run before the CEC kthread arms the reply
timeout via schedule_delayed_work(&amp;amp;data-&amp;gt;work) in cec_transmit_done_ts().
The work is then armed after the cancel, and the data is freed with its
delayed_work still pending:&lt;/p&gt;
&lt;p&gt;ODEBUG: free active (active state 0) object: ... hint: cec_wait_timeout&lt;/p&gt;
&lt;p&gt;Use disable_delayed_work_sync(): it cancels the work and disables it, so
the later schedule_delayed_work() becomes a no-op and the work cannot be
re-armed. The data is freed right after, so it need not be re-enabled.&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;media: cec: disable delayed work before freeing an interrupted transmit&lt;/p&gt;
&lt;p&gt;cec_transmit_msg_fh() drops adap-&amp;gt;lock to wait for a blocking transmit in
wait_for_completion_killable(). If that wait is interrupted by a signal,
cancel_delayed_work_sync() can run before the CEC kthread arms the reply
timeout via schedule_delayed_work(&amp;amp;data-&amp;gt;work) in cec_transmit_done_ts().
The work is then armed after the cancel, and the data is freed with its
delayed_work still pending:&lt;/p&gt;
&lt;p&gt;ODEBUG: free active (active state 0) object: ... hint: cec_wait_timeout&lt;/p&gt;
&lt;p&gt;Use disable_delayed_work_sync(): it cancels the work and disables it, so
the later schedule_delayed_work() becomes a no-op and the work cannot be
re-armed. The data is freed right after, so it need not be re-enabled.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-89899</guid>
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