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    <lastBuildDate>Tue, 29 Sep 2026 10:29:27 +0000</lastBuildDate>
    <item>
      <title>CVE-2023-54235 — PCI/DOE: Fix destroy_work_on_stack() race</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2023-54235</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;PCI/DOE: Fix destroy_work_on_stack() race&lt;/p&gt;
&lt;p&gt;The following debug object splat was observed in testing:&lt;/p&gt;
&lt;p&gt;ODEBUG: free active (active state 0) object: 0000000097d23782 object type: work_struct hint: doe_statemachine_work+0x0/0x510
  WARNING: CPU: 1 PID: 71 at lib/debugobjects.c:514 debug_print_object+0x7d/0xb0
  ...
  Workqueue: pci 0000:36:00.0 DOE [1 doe_statemachine_work
  RIP: 0010:debug_print_object+0x7d/0xb0
  ...
  Call Trace:
   ? debug_print_object+0x7d/0xb0
   ? __pfx_doe_statemachine_work+0x10/0x10
   debug_object_free.part.0+0x11b/0x150
   doe_statemachine_work+0x45e/0x510
   process_one_work+0x1d4/0x3c0&lt;/p&gt;
&lt;p&gt;This occurs because destroy_work_on_stack() was called after signaling
the completion in the calling thread.  This creates a race between
destroy_work_on_stack() and the task-&amp;gt;work struct going out of scope in
pci_doe().&lt;/p&gt;
&lt;p&gt;Signal the work complete after destroying the work struct.  This is safe
because signal_task_complete() is the final thing the work item does and
the workqueue code is careful not to access the work struct after.&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;PCI/DOE: Fix destroy_work_on_stack() race&lt;/p&gt;
&lt;p&gt;The following debug object splat was observed in testing:&lt;/p&gt;
&lt;p&gt;ODEBUG: free active (active state 0) object: 0000000097d23782 object type: work_struct hint: doe_statemachine_work+0x0/0x510
  WARNING: CPU: 1 PID: 71 at lib/debugobjects.c:514 debug_print_object+0x7d/0xb0
  ...
  Workqueue: pci 0000:36:00.0 DOE [1 doe_statemachine_work
  RIP: 0010:debug_print_object+0x7d/0xb0
  ...
  Call Trace:
   ? debug_print_object+0x7d/0xb0
   ? __pfx_doe_statemachine_work+0x10/0x10
   debug_object_free.part.0+0x11b/0x150
   doe_statemachine_work+0x45e/0x510
   process_one_work+0x1d4/0x3c0&lt;/p&gt;
&lt;p&gt;This occurs because destroy_work_on_stack() was called after signaling
the completion in the calling thread.  This creates a race between
destroy_work_on_stack() and the task-&amp;gt;work struct going out of scope in
pci_doe().&lt;/p&gt;
&lt;p&gt;Signal the work complete after destroying the work struct.  This is safe
because signal_task_complete() is the final thing the work item does and
the workqueue code is careful not to access the work struct after.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2023-54235</guid>
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