CVE-2021-29574: TensorFlow is an end-to-end open source platform for machine learning. The implementation of `tf.raw_ops.MaxPool3DGradGr

TensorFlow, an open-source machine learning platform, has a vulnerability in the `tf.raw_ops.MaxPool3DGradGrad` function where it doesn't check if input tensors (data structures that hold multi-dimensional arrays) are empty before accessing their contents. An attacker can provide empty tensors to cause a null pointer dereference (trying to access memory that doesn't exist), crashing the program or potentially executing malicious code.