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C#

C# static code analysis

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

  • All rules 493
  • Vulnerability46
  • Bug88
  • Security Hotspot24
  • Code Smell335

  • Quick Fix 61
Filtered: 17 rules found
symbolic-execution
    Impact
      Clean code attribute
        1. Locks should be released within the same method

           Bug
        2. A write lock should not be released when a read lock has been acquired and vice versa

           Bug
        3. First/Single should be used instead of FirstOrDefault/SingleOrDefault on collections that are known to be non-empty

           Code Smell
        4. JWT secret keys should not be disclosed

           Vulnerability
        5. Types allowed to be deserialized should be restricted

           Vulnerability
        6. Secure random number generators should not output predictable values

           Vulnerability
        7. Empty collections should not be accessed or iterated

           Bug
        8. Objects should not be disposed more than once

           Code Smell
        9. Calculations should not overflow

           Bug
        10. Arguments of public methods should be validated against null

           Code Smell
        11. Empty nullable value should not be accessed

           Bug
        12. Cipher Block Chaining IVs should be unpredictable

           Vulnerability
        13. Boolean expressions should not be gratuitous

           Code Smell
        14. Conditionally executed code should be reachable

           Bug
        15. Null pointers should not be dereferenced

           Bug
        16. Locks should be released on all paths

           Bug
        17. Password hashing functions should use an unpredictable salt

           Vulnerability

        Locks should be released on all paths

        intentionality - complete
        reliability
        Bug
        • cwe
        • multi-threading
        • symbolic-execution

        Why is this an issue?

        How can I fix it?

        More Info

        To prevent potential deadlocks in an application, it is crucial to release any locks that are acquired within a method along all possible execution paths.

        Failing to release locks properly can lead to potential deadlocks, where the lock might not be released, causing issues in the application.

        This rule specifically focuses on tracking the following types from the System.Threading namespace:

        • Monitor
        • Mutex
        • ReaderWriterLock
        • ReaderWriterLockSlim
        • SpinLock

        An issue is reported when a lock is acquired within a method but not released on all paths.

        Exceptions

        If the lock is never released within the method, no issue is raised, assuming that the callers will handle the release.

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          Developer Edition
          Available Since
          9.3

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