Potential fix for code scanning alert no. 50: Slice memory allocation with excessive size value

[hahwul]

Potential fix for https://github.com/hahwul/dalfox/security/code-scanning/50

To fix the problem, we need to implement a maximum allowed value for the concurrency variable to prevent excessively large allocations. This can be done by adding a check to ensure that the concurrency value does not exceed a predefined maximum limit. If the value exceeds the limit, we should set it to the maximum allowed value.

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[gemini-code-assist]

Hello @hahwul, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

Summary of Changes

This pull request addresses a code scanning alert related to excessive memory allocation when using the concurrency option in the dalfox tool. The fix implemented adds a maximum limit to the concurrency variable to prevent allocations that are too large, setting the concurrency to a maximum of 1000 if the user-provided value exceeds this limit. This change is intended to prevent potential denial-of-service or resource exhaustion issues.

Highlights

• Security Fix: Implements a maximum concurrency limit to prevent excessive memory allocation, addressing a code scanning alert.
• Concurrency Control: Adds a check to ensure the concurrency value does not exceed 1000, setting it to 1000 if it does.

Changelog

• pkg/scanning/parameterAnalysis.go
  • Introduces a maxConcurrency constant with a value of 1000.
  • Adds a check to limit the concurrency value to maxConcurrency if it exceeds this limit.

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---

A slice of memory,
Too large, a dangerous plea.
A limit we set now,
To keep the system sound,
And guard against the overflow.

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[gemini-code-assist]

Code Review

This pull request addresses a potential vulnerability related to excessive memory allocation by limiting the concurrency value. The change is straightforward and seems effective in mitigating the risk. However, I have a suggestion to improve the code's clarity.

Summary of Findings

• Clarity of Maximum Concurrency Limit: The code introduces a maxConcurrency constant. It would be beneficial to provide a brief comment explaining the rationale behind the chosen value (1000) to improve maintainability and understanding.

Merge Readiness

The pull request appears to effectively address the identified vulnerability. The changes are small and focused. I recommend merging after addressing the comment regarding the clarity of the maximum concurrency limit. I am unable to directly approve this pull request, and recommend that others review and approve this code before merging.

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
pkg/scanning/parameterAnalysis.go	25.00%	2 Missing and 1 partial ⚠️

📢 Thoughts on this report? Let us know!

[Copilot]

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.