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Comment: Updated references from C11->C23

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Code Block
bgColor#ccccff
langc
#include <stdlib.h>
#include <string.h>
 
void func(void) {
  size_t resize = 1024;
  size_t alignment = 1 << 12;
  int *ptr;
  int *ptr1;

  if (NULL == (ptr = (int *)aligned_alloc(alignment,
                                          sizeof(int)))) {
    /* Handle error */
  }

  if (NULL == (ptr1 = (int *)aligned_alloc(alignment,
                                           resize))) {
    /* Handle error */
  }
  
  if (NULL == (memcpy(ptr1, ptr, sizeof(int))) {
    /* Handle error */
  }
  
  free(ptr);
}

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5027 Alignment changed

Tool

Version

Checker

Description

Astrée
Include Page
Astrée_V
Astrée_V

Supported, but no explicit checker
Axivion Bauhaus Suite

Include Page
Axivion Bauhaus Suite_V
Axivion Bauhaus Suite_V

CertC-MEM36Fully implemented
CodeSonar
Include Page
CodeSonar_V
CodeSonar_V

BADFUNC.REALLOC

Use of realloc

Cppcheck Premium

Include Page
Cppcheck Premium_V
Cppcheck Premium_V

premium-cert-mem36-cFully implemented
Helix QAC

Include Page
Helix QAC_V
Helix QAC_V

C5027

C++5034


Klocwork
Include Page
Klocwork_V
Klocwork_V

AUTOSAR.STDLIB.MEMORY


LDRA tool suite
Include Page
LDRA_V
LDRA_V
44 SEnhanced enforcement
Parasoft C/C++test

Include Page
Parasoft_V
Parasoft_V

CERT_C-MEM36-aDo not modify the alignment of objects by calling realloc()

Polyspace Bug Finder

Include Page
Polyspace Bug Finder_V

 PRQA QA-C9.1 

Polyspace Bug Finder

R2017b

_V

CERT C: Rule MEM36-CChecks for alignment change after memory allocation Memory reallocation changes the originally stricter alignment of an object(rule fully covered)

Related Vulnerabilities

Search for vulnerabilities resulting from the violation of this rule on the CERT website.

Bibliography

[ISO/IEC 9899:201120247.2224.3.1, "The The aligned_alloc Function"
[MSDN]aligned_malloc()

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