NTSTATUS 0xC0440005 (STATUS_HDAUDIO_NULL_LINKED_LIST

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Description:

The HD Audio driver found a null entry in an internal device or topology list.

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STATUS_HDAUDIO_NO_LOGICAL_DEVICES_CREATED	STATUS_VSM_NOT_INITIALIZED

STATUS_HDAUDIO_NULL_LINKED_LIST_ENTRY

An internal HD Audio topology or device list is inconsistent

HD Audio enumeration and routing code maintains linked collections of codecs, widgets, paths, streams, or logical subdevices. A null pointer in a position that should reference the subsequent valid entry indicates corrupted bookkeeping, incomplete initialization, or a lifetime error during teardown or power transition.

This status is more specific than a codec capability mismatch. It points to driver-managed state and should be investigated with the list owner, allocation history, and concurrent PnP or power activity.

What to inspect

Capture the list type, current entry, owning device object, and call stack.
Check whether removal, surprise removal, stop, or resume ran concurrently with traversal.
Audit initialization and cleanup paths for partially inserted or prematurely freed entries.
Use Driver Verifier and pool diagnostics when memory corruption or use-after-free is suspected.

References

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