CVE-2021-37690: TensorFlow is an end-to-end open source platform for machine learning. In affected versions when running shape functions

TensorFlow, an open-source machine learning platform, had a bug where certain shape functions created temporary data structures (ShapeAndType structs) that were deleted too quickly, causing crashes (segfaults, or sudden program failures) if other code tried to access them. The issue was that while normal output shapes were being protected by copying them to safer ownership, the code wasn't doing the same protection for shapes and types together.