The vulnerability stems from the 'upload_results_to_s3.sh' shell script directly referencing a hardcoded S3 bucket ('benchmarkai-metrics-prod') without ownership verification or access controls. However, the provided information does not explicitly identify specific functions within the codebase (e.g., Python functions or shell script functions) that implement this insecure behavior. The script itself is the primary point of concern, but it is not described as containing modular functions that can be isolated in the context of this analysis. Without access to the script's internal structure (e.g., shell functions or caller functions in TorchServe code), there is insufficient evidence to pinpoint specific functions with high confidence.