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ERROR_INVALID_EA_NAME
The extended-attribute name is malformed
ERROR_INVALID_EA_NAME is a Win32 result associated with extended attributes and filesystem metadata.
What the result means
An extended-attribute name is invalid for the target filesystem or API.
What to check
- Validate allowed characters, namespace syntax, and maximum name length.
- Ensure the buffer uses the structure and encoding required by the API.
- Check for embedded null characters or incorrect byte counts.
- Compare behavior on the actual target filesystem because EA support varies.
Recommended handling
Reject the malformed attribute before issuing the filesystem request. Do not silently rewrite names unless the application owns and documents a normalization scheme.
References
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