V2511. MISRA. Memory allocation and deallocation functions should not be used.

This diagnostic rule is based on the software development guidelines developed by MISRA (Motor Industry Software Reliability Association).

The analyzer issues the warning when it detects the following dynamic memory allocation/deallocation functions and operators:

  • malloc;
  • realloc;
  • calloc;
  • free;
  • new;
  • delete.

Functions used for dynamic memory handling are a potential source of trouble since misusing them could result in memory leaks, undefined behavior, and other problems. Besides, this may cause vulnerabilities.

Here is an example of code triggering this warning:

int* imalloc(size_t cnt)
  return (int*)malloc(cnt * sizeof(int));

The warning is also issued in C programs whenever a macro declaration with one of these names is detected.

This diagnostic is classified as:

  • CWE-676
  • MISRA-C-21.3
  • MISRA-CPP-18.4.1

Bugs Found

Checked Projects
Collected Errors
14 526
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