Feature/statistics safety#530
Merged
greatest0fallt1me merged 2 commits intoPredictify-org:masterfrom Apr 24, 2026
Merged
Conversation
- Implement checked arithmetic for all counter operations - Use saturation policy instead of silent wrapping - Add underflow protection for active_events_count - Clamp win_rate to valid range (0-10000 basis points) - Add comprehensive documentation for statistics safety - Add regression test for underflow protection - Update TYPES_SYSTEM.md with statistics safety documentation
- Implement checked arithmetic with saturation for all statistics counters - Add overflow protection tests for platform and user statistics - Ensure counters saturate at max values instead of wrapping - Update set_platform_stats and set_user_stats to pub(crate) for testing Security notes: - Threat model: Prevent silent counter overflow that could lead to incorrect statistics - Invariants: Counters never wrap, always saturate at type limits - Non-goals: Error on overflow (other modules do this), saturation chosen for statistics continuity
|
@akinboyewaSamson Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits. You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀 |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
closes #418
📋 Basic Information
Type of Change
Please select the type of change this PR introduces:
Related Issues
Closes #418
Priority Level
📝 Detailed Description
What does this PR do?
Implements safe statistics counter updates for the Predictify Hybrid Soroban smart contract. All statistics counters now use checked arithmetic with explicit saturation policy to prevent silent overflow/underflow, ensuring statistical integrity and preventing unexpected behavior in high-usage scenarios.
Why is this change needed?
Statistics counters were at risk of silent overflow/underflow, which could lead to incorrect platform metrics, user statistics, and dashboard data. This security fix ensures counters saturate at their maximum/minimum values instead of wrapping around, maintaining data integrity and preventing potential manipulation or confusion from invalid statistics.
How was this tested?
Added comprehensive unit tests for overflow protection scenarios:
Tests verify that counters saturate at type limits rather than wrapping.
Alternative Solutions Considered
🏗️ Smart Contract Specific
Contract Changes
Please check all that apply:
Oracle Integration
Market Resolution Logic
Security Considerations
🧪 Testing
Test Coverage
Test Results
Manual Testing Steps
📚 Documentation
Documentation Updates
Breaking Changes
Breaking Changes:
Migration Guide:
No migration required - changes are backward compatible.
🔍 Code Quality
Code Review Checklist
Performance Impact
Security Review
🚀 Deployment & Integration
Deployment Notes
Integration Points
📊 Impact Assessment
User Impact
Business Impact
✅ Final Checklist
Pre-Submission
Review Readiness
📸 Screenshots (if applicable)
🔗 Additional Resources
💬 Notes for Reviewers
Please pay special attention to:
Questions for reviewers:
Thank you for your contribution to Predictify! 🚀