The analyzer has detected a possible error that has to do with using incompatible functions to acquire and release a resource. For example, this warning will be issued when a file is opened using the 'fopen_s' function and closed using the 'CloseHandle' function.
Consider the following example.
FILE* file = nullptr; errno_t err = fopen_s(&file, "file.txt", "r"); ... CloseHandle(file);
The result of executing this code is unknown. The 'CloseHandle' function may return the error status and merely cause a resource leak (fail to close the file), but more severe implications are also possible. Incorrect calls of some functions lead to undefined behavior, which means unpredictable results, including a crash.
This is what the fixed code should look like:
FILE* file = nullptr; errno_t err = fopen_s(&file, "file.txt", "r"); ... fclose(file);
According to Common Weakness Enumeration, potential errors found by using this diagnostic are classified as CWE-404.