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TPMAPI_E_BUFFER_TOO_SMALL
TPMAPI_E_BUFFER_TOO_SMALL is a Windows TPM API result. It indicates that the destination buffer cannot hold the returned TPM data or encoded result.
What to check for TPMAPI_E_BUFFER_TOO_SMALL
- Read the returned required size when the API provides one, then allocate a larger buffer.
- Verify that byte counts, not element counts, are supplied for buffers whose APIs use byte lengths.
- Handle variable-size TPM blobs and logs without relying on a fixed legacy buffer size.
Microsoft documentation for TPMAPI error codes
Diagnostic discriminator: Compare the caller-provided output-buffer capacity with the size required by the TPM API. This result is a destination sizing contract, not malformed TPM data.
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