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In this example, input_string
is copied into dynamically allocated memory referenced by str
. If malloc() }} fails, it returns an invalid (null) pointer that is assigned to {{str
. When str
is dereferenced in strcpy()
, the program behave in an unpredictable manner.
Code Block |
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... char *str = malloc(strlen(input_string)+1)size_of_input); strcpy(str, input_string); /* What if malloc() fails? */ ... |
Compliant Solution
To correct this error, ensure the pointer returned by malloc()
is not invalid (null). In addition to this rule, this should be done in accordance with rule MEM32-C. Detect and handle critical memory allocation errors.
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