ERROR_INVALID_LDT_DESCRIPTOR - 564 (0x234)
Indicates that the user supplied an invalid descriptor when trying to set up Ldt descriptors.
Updated: Feb 21, 2026
Technical Background
The error code ERROR_INVALID_LDT_DESCRIPTOR is a specific Windows API error that indicates an issue with the Local Descriptor Table (LDT) descriptors. The LDT is a data structure used in x86 processors to manage segment descriptors, which are essential for memory segmentation and protection.
Error Details
This error occurs when a user-supplied descriptor is invalid during the process of setting up Ldt descriptors. This can happen due to incorrect parameter values or an inappropriate context for the operation.
Common Causes
- Invalid Parameter Values: The provided descriptor data may be malformed or contain incorrect values that violate the expected format.
- Incorrect Object Type: The operation might be performed on an object type that does not support LDT descriptors, leading to a mismatch in expectations.
- Exceeding Limits: There could be constraints on the number of valid descriptors allowed, and the supplied descriptor may exceed this limit.
Real-World Context
This error is typically encountered during low-level system calls or kernel operations that require precise control over memory segmentation. Developers working with such APIs need to ensure that all parameters are correctly set before invoking these functions.
Is This Error Critical?
The criticality of this error depends on the specific operation being performed. In general, it indicates a failure in setting up necessary descriptors and may prevent certain operations from completing successfully.
How to Diagnose
To diagnose this issue, developers should:
- Review Operation Context: Ensure that the operation is appropriate for the current system state and configuration.
- Validate Parameters: Verify that all input parameters are correct and match the expected format and values.
- Confirm Object Types: Check that the object types being used support LDT descriptors.
How to Resolve
To resolve this issue, developers should:
- Correct Parameter Usage: Ensure that all descriptor data is correctly formatted and within valid ranges.
- Adjust Operation Context: If necessary, adjust the system state or configuration to ensure compatibility with the operation requirements.
- Restore Data: If corrupted descriptors are detected, restore them from a known good backup or default state.
Developer Notes
Developers should be cautious when working with LDT descriptors and ensure that all operations adhere strictly to the documented specifications. Incorrect handling of these descriptors can lead to system instability or security vulnerabilities.
Related Errors
FAQ
Q: What does ERROR_INVALID_LDT_DESCRIPTOR mean?
A: It indicates that an invalid descriptor was supplied when setting up Ldt descriptors.
Q: How can I prevent this error?
A: Ensure all parameters are correctly formatted and within valid ranges, and confirm the object types being used support LDT descriptors.
Summary
The ERROR_INVALID_LDT_DESCRIPTOR is a specific Windows API error that occurs when an invalid descriptor is supplied during the setup of Local Descriptor Table (LDT) descriptors. This error can be caused by incorrect parameter values or inappropriate operation context. Developers should validate parameters and ensure compatibility with system requirements to avoid this issue.