T09 · Insecure Skill Coding Practices
Warning
- Location
code.c:100- Finding
Unvalidated Numeric Arguments Enable Memory Corruption and Resource Exhaustion
- Content
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- Remediation
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SIZE_MAX / sizeof(double)) { fprintf(stderr, "Repetition count is too large\n"); return; } ``` 5. Check compound count calculations before use: ```c if (repetitions > SIZE_MAX / (size_t)num_methods) { fprintf(stderr, "Test count overflow\n"); return; } size_t total_tests = (size_t)num_methods * repetitions; ``` 6. Verify every allocation before dereferencing it. On failure, release all allocations already made and return an error: ```c double **results = calloc((size_t)num_methods, sizeof(*results)); if (results == NULL) { perror("calloc"); return; } ``` 7. Prevent invalid statistical operations by requiring `repetitions > 0` before starting the experiment. 8. Return a nonzero exit status when validation or allocation fails so that calling automation can reliably detect the failure. 9. Consider applying process-level CPU and memory limits when the benchmark can be invoked by untrusted users. ]]>