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C

C static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your C code

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  • Quick Fix 19
Filtered: 3 rules found
denial-of-service
    Impact
      Clean code attribute
        1. Dynamically allocated memory should be released

           Bug
        2. Zero should not be a possible denominator

           Bug
        3. Resources should be closed

           Bug

        Zero should not be a possible denominator

        intentionality - logical
        reliability
        Bug
        • cwe
        • symbolic-execution
        • denial-of-service
        • cert

        Ensure that integer division and remainder operations do not result in divide-by-zero errors.

        Why is this an issue?

        What is the potential impact?

        How can I fix it?

        More Info

        If the denominator to a division or modulo operation is zero, the behavior of the application is undefined.

        Operator / is used for division and % for modulo operation. Division and modulo operations are susceptible to divide-by-zero (and signed integer overflow) errors.

        int foo(int a, int b) {
          if (b == 0) {
            a = 1;
          }
          return a / b; // Noncompliant: potential divide-by-zero error
        }
        
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          Available Since
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