Add G118 SSA analyzer for context propagation failures that can cause goroutine/resource leaks#1516
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ccojocar merged 2 commits intosecurego:masterfrom Feb 15, 2026
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… goroutine/resource leaks This PR introduces G118, a new SSA-based gosec rule that detects high-risk context misuse patterns: goroutines using context.Background/TODO when request context exists, missing cancel() calls from WithCancel/WithTimeout/WithDeadline, and unbounded blocking loop regions without ctx.Done() guards. These patterns can leak goroutines and I/O resources, leading to resource exhaustion/DoS in production services. The rule is mapped to CWE-400, integrated into analyzer registration and docs, and includes positive/negative samples (including complex loop CFG cases) to reduce false positives while preserving detection quality. Signed-off-by: Cosmin Cojocar <cosmin@cojocar.ch>
Signed-off-by: Cosmin Cojocar <cosmin@cojocar.ch>
Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #1516 +/- ##
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- Coverage 77.43% 76.91% -0.52%
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Files 96 97 +1
Lines 7750 8206 +456
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+ Hits 6001 6312 +311
- Misses 1472 1567 +95
- Partials 277 327 +50 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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This PR introduces G118, a new SSA-based gosec rule that detects high-risk context misuse patterns: goroutines using context.Background/TODO when request context exists, missing cancel() calls from WithCancel/WithTimeout/WithDeadline, and unbounded blocking loop regions without ctx.Done() guards.These patterns can leak goroutines and I/O resources, leading to resource exhaustion/DoS in production services.The rule is mapped to CWE-400, integrated into analyzer registration and docs, and includes positive/negative samples (including complex loop CFG cases) to reduce false positives while preserving detection quality.