Memory corruption in `DrawBoundingBoxesV2`

Impact The implementation of tf.rawops.MaxPoolGradWithArgmax can cause reads outside of bounds of heap allocated data if attacker supplies specially crafted inputs: python import tensorflow as tf images = tf.fill10, 96, 0, 1, 0. boxes = tf.fill10, 53, 0, 0. colors = tf.fill0, 1, 0...