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Examples of errors detected by the V506…

Examples of errors detected by the V506 diagnostic

V506. Pointer to local variable 'X' is stored outside the scope of this variable. Such a pointer will become invalid.


WinSCP

V506 Pointer to local variable 'EditorList' is stored outside the scope of this variable. Such a pointer will become invalid. customscpexplorer.cpp 2633


void __fastcall TCustomScpExplorerForm::EditorAutoConfig()
{
  ....
  else
  {
    ....
    TEditorList EditorList;
    EditorList = *WinConfiguration->EditorList;
    EditorList.Insert(0, new TEditorPreferences(EditorData));
    WinConfiguration->EditorList = &EditorList;
  }
  ....
}

Miranda NG

V506 Pointer to local variable 'psr' is stored outside the scope of this variable. Such a pointer will become invalid. Miranda findadd.cpp 777


static INT_PTR CALLBACK DlgProcFindAdd(....)
{
  ....
  case IDC_ADD:
    {
      ADDCONTACTSTRUCT acs = {0};

      if (ListView_GetSelectedCount(hwndList) == 1) {
        ....
      }
      else {
        ....
        PROTOSEARCHRESULT psr = { 0 };                 // <=
        psr.cbSize = sizeof(psr);
        psr.flags = PSR_TCHAR;
        psr.id = str;

        acs.psr = &psr;                                // <=
        acs.szProto = (char*)SendDlgItemMessage(....);
      }
      acs.handleType = HANDLE_SEARCHRESULT;
      CallService(MS_ADDCONTACT_SHOW,
                  (WPARAM)hwndDlg, (LPARAM)&acs);
    }
    break;
  ....
}

Similar errors can be found in some other places:

  • V506 Pointer to local variable 'blend' is stored outside the scope of this variable. Such a pointer will become invalid. AdvaImg background.cpp 269
  • V506 Pointer to local variable 'aiw' is stored outside the scope of this variable. Such a pointer will become invalid. mir_core protos.cpp 72

Unreal Engine 4

V506 Pointer to local variable 'NewBitmap' is stored outside the scope of this variable. Such a pointer will become invalid. fontcache.cpp 466


void GetRenderData(....)
{
  ....
  if( Slot->bitmap.pixel_mode == FT_PIXEL_MODE_MONO )
  {
    FT_Bitmap NewBitmap;
    ....
    Bitmap = &NewBitmap;
  }
  ....
  OutRenderData.RawPixels.AddUninitialized(
    Bitmap->rows * Bitmap->width );
  ....
}

PHP:Hypertext Preprocessor

V506 Pointer to local variable 'tmp' is stored outside the scope of this variable. Such a pointer will become invalid. spl_fixedarray.c 420


static void
spl_fixedarray_object_write_dimension(
  zval *object, zval *offset, zval *value)
{
  ....
  if (intern->fptr_offset_set) {
    zval tmp;
    if (!offset) {
      ZVAL_NULL(&tmp);
      offset = &tmp;
    } else {
      SEPARATE_ARG_IF_REF(offset);
  }
  ....
  spl_fixedarray_object_write_dimension_helper(
    intern, offset, value)
}

RT-Thread

V506 CWE-562 Pointer to local variable 'queuebWeight' is stored outside the scope of this variable. Such a pointer will become invalid. fsl_semc.c 257


void SEMC_GetDefaultConfig(semc_config_t *config)
{
  assert(config);

  semc_axi_queueweight_t queueWeight; /*!< AXI queue weight. */
  semc_queuea_weight_t queueaWeight;
  semc_queueb_weight_t queuebWeight;

  ....

  config->queueWeight.queueaWeight = &queueaWeight;
  config->queueWeight.queuebWeight = &queuebWeight;
}

Haiku Operation System

V506 Pointer to local variable 'normalized' is stored outside the scope of this variable. Such a pointer will become invalid. TextView.cpp 5596


void
BTextView::_ApplyStyleRange(...., const BFont* font, ....)
{
  if (font != NULL) {
    BFont normalized = *font;
    _NormalizeFont(&normalized);
    font = &normalized;
  }
  ....
  fStyles->SetStyleRange(fromOffset, toOffset, fText->Length(), mode,
    font, color);
}

MuseScore

V506 Pointer to local variable 'handle' is stored outside the scope of this variable. Such a pointer will become invalid. ove.cpp 4391


class BasicParse
{
  ....
protected:
  StreamHandle* m_handle;
  ....
}

bool OvscParse::parse()
{
  Block* dataBlock = m_chunk->getDataBlock();
  unsigned int blockSize = m_chunk->getSizeBlock()->toSize();
  StreamHandle handle(dataBlock->data(), blockSize);
  Block placeHolder;

  m_handle = &handle;
  ....
}

Similar errors can be found in some other places:

  • V506 Pointer to local variable 'handle' is stored outside the scope of this variable. Such a pointer will become invalid. ove.cpp 4483
  • V506 Pointer to local variable 'handle' is stored outside the scope of this variable. Such a pointer will become invalid. ove.cpp 4930
  • V506 Pointer to local variable 'handle' is stored outside the scope of this variable. Such a pointer will become invalid. ove.cpp 9291
  • And 1 additional diagnostic messages.

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