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Examples of errors detected by the V726 diagnostic.


V726. An attempt to free memory containing the 'int A[10]' array by using the 'free(A)' function.

CamStudio

V726 An attempt to free memory containing the 'p' array by using the 'free' function. This is incorrect as 'p' was created on stack. playplusview.cpp 7059


int CopyStream(PAVIFILE pavi,PAVISTREAM pstm)
{
  ....
  BYTE p[20000];
  ....
  free(p);
  return 0;
}

Shareaza

V726 An attempt to free memory containing the 'szXMLNorm' array by using the 'free' function. This is incorrect as 'szXMLNorm' was created on stack. utils.c 92


int SetSkinAsDefault()
{
  TCHAR szXMLNorm[MAX_PATH];
  ....
  else {
    free(szXMLNorm);
    return 0;
  }
  return 1;
}

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Bugs Found

Checked Projects
314
Collected Errors
13 644

Qt

C++ 
int gx = gm.x.toInt();
int gy = gm.y.toInt();
int iw = gm.width.toInt();
int ih = gm.height.toInt();
if (iw <= 0 || iw <= 0)
  return 0;

UnrealEngine

C++ 
switch ( BlendMode )
{
case Opaque:
  BackgroundColor.A = 1.0f;
case Masked:
  BackgroundColor.A = 0.0f;
}

Xamarin

C# 
get {
  return Left == 0 &&
         Top == 0 &&
         Right == 0 &&
         Left == 0;
}

Chromium

C++ 
void Explode(bool is_local,
  Exploded* exploded) const
{
  ....
  ZeroMemory(
    exploded,
    sizeof(exploded));
  ....
}

Qt

C++ 
int gx = gm.x.toInt();
int gy = gm.y.toInt();
int iw = gm.width.toInt();
int ih = gm.height.toInt();
if (iw <= 0 || iw <= 0)
  return 0;

UnrealEngine

C++ 
switch ( BlendMode )
{
case Opaque:
  BackgroundColor.A = 1.0f;
case Masked:
  BackgroundColor.A = 0.0f;
}

Xamarin

C# 
get {
  return Left == 0 &&
         Top == 0 &&
         Right == 0 &&
         Left == 0;
}

Chromium

C++ 
void Explode(bool is_local,
  Exploded* exploded) const
{
  ....
  ZeroMemory(
    exploded,
    sizeof(exploded));
  ....
}
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