V507. Pointer to local array 'X' is stored outside the scope of this array. Such a pointer will become invalid.
V507 Pointer to local array 'stringbuf' is stored outside the scope of this array. Such a pointer will become invalid. mainwindow.cpp 277
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LRESULT CALLBACK CMainWindow::WinMsgHandler(....)
{
....
if (pNMHDR->code == TTN_GETDISPINFO)
{
LPTOOLTIPTEXT lpttt;
lpttt = (LPTOOLTIPTEXT) lParam;
lpttt->hinst = hResource;
// Specify the resource identifier of the
// descriptive text for the given button.
TCHAR stringbuf[MAX_PATH] = {0};
....
lpttt->lpszText = stringbuf;
}
....
}
It's not that simple with this code. Theoretically, the code contains an error. Practically, it works well. The V507 diagnostic message warns you that an object is used after being destroyed. The 'stringbuf' buffer will be used after exiting the body of the 'if' operator. If 'stringbuf' was an object of the class std::string, for instance, its behavior would be incorrect. We would use an already destroyed object in that case. But here 'stringbuf' is an array created in the stack. The Visual C++ compiler doesn't use this stack area again, so the buffer will exist until the 'CMainWindow::WinMsgHandler' function finishes its work. Thus, no error occurs, although the code is potentially dangerous.
Similar errors can be found in some other places:
V507 Pointer to local array 'var' is stored outside the scope of this array. Such a pointer will become invalid. ri renderer.cpp 5974
class CVariable {
public:
char name[64]; // Name as it is referenced
....
};
void CRendererContext::RiGeometryV(
char *type,int n,char *tokens[],void *params[])
{
....
} else {
CVariable var;
if (parseVariable(&var,NULL,tokens[i])) {
tokens[i] = var.name;
i--;
} else {
error(CODE_BADTOKEN,
"Unrecognised implicit parameter: %s\n",tokens[i]);
}
}
....
}
Similar errors can be found in some other places:
V507 Pointer to local array 'buf' is stored outside the scope of this array. Such a pointer will become invalid. myisam ha_myisam.cc 1156
int ha_myisam::assign_to_keycache(THD* thd,
HA_CHECK_OPT *check_opt)
{
....
const char *errmsg= 0;
....
if ((error= mi_assign_to_key_cache(file, map, new_key_cache)))
{
char buf[STRING_BUFFER_USUAL_SIZE];
my_snprintf(buf, sizeof(buf),
"Failed to flush to index file (errno: %d)", error);
errmsg = buf;
error = HA_ADMIN_CORRUPT;
}
....
}
It's not that simple with this code. Theoretically, the code contains an error. Practically, it works well. The V507 diagnostic message warns you that an object is used after being destroyed. The 'buf' buffer will be used after exiting the body of the 'if' operator. If 'buf' was an object of the class std::string, for instance, its behavior would be incorrect. We would use an already destroyed object in that case. But here 'buf' is an array created in the stack. The Visual C++ compiler doesn't use this stack area again, so the buffer will exist until the 'ha_myisam::assign_to_keycache' function finishes its work. Thus, no error occurs, although the code is potentially dangerous.
V507 Pointer to local array 'szActName' is stored outside the scope of this array. Such a pointer will become invalid. Server (HL2) baseflex.cpp 1326
static Activity DetermineExpressionMoveActivity(
CChoreoEvent *event, CAI_BaseNPC *pNPC )
{
....
const char *pszAct = Q_strstr( sParam2, " " );
if ( pszAct )
{
char szActName[256];
Q_strncpy( szActName, sParam2, sizeof(szActName) );
szActName[ (pszAct-sParam2) ] = '\0';
pszAct = szActName;
}
....
}
V507 Pointer to local array 'strfl' is stored outside the scope of this array. Such a pointer will become invalid. sci_champ.c 103
int sci_champ_G(....)
{
....
char * strf = NULL ;
....
if ( isDefStrf( strf ) )
{
char strfl[4];
strcpy(strfl,DEFSTRFN);
strf = strfl;
if ( !isDefRect( rect ) )
{
strf[1]='5';
}
}
(*func)(stk(l1 ),stk(l2 ),stk(l3 ),stk(l4 ),
&m3,&n3,strf,rect, arfact, 4L);
....
}
Similar errors can be found in some other places:
V507 Pointer to local array 'str' is stored outside the scope of this array. Such a pointer will become invalid. Miranda genmenu.cpp 973
HMENU BuildRecursiveMenu(....)
{
....
if (GetKeyState(VK_CONTROL) & 0x8000) {
TCHAR str[256];
mir_sntprintf(str, SIZEOF(str),
_T("%s (%d, id %x)"), mi->pszName,
mi->position, mii.dwItemData);
mii.dwTypeData = str;
}
....
}
Similar errors can be found in some other places:
V507 Pointer to local array 'label' is stored outside the scope of this array. Such a pointer will become invalid. usrintrf.c 2121
static int settraksettings(struct mame_bitmap *bitmap,
int selected)
{
const char *menu_item[40];
const char *menu_subitem[40];
....
for (i = 0;i < total2;i++)
{
if (i < total2 - 1)
{
char label[30][40];
char setting[30][40];
....
menu_item[i] = label[i];
menu_subitem[i] = setting[i];
}
}
....
}
Similar errors can be found in some other places:
V507 Pointer to local array 'dirbuf' is stored outside the scope of this array. Such a pointer will become invalid. tmpdir.c 128
int path_search(const char *dir, ....)
{
....
if (....)
{
char dirbuf[PATH_MAX];
....
dir = dirbuf;
}
....
dlen = strlen (dir);
}
V507 Pointer to local array 'n' is stored outside the scope of this array. Such a pointer will become invalid. inkscape.cpp 582
void
Application::crash_handler(int /*signum*/)
{
....
if (doc->isModifiedSinceSave()) {
const gchar *docname;
....
if (docname) {
....
if (*d=='.' && d>docname && dots==2) {
char n[64];
size_t len = MIN (d - docname, 63);
memcpy (n, docname, len);
n[len] = '\0';
docname = n;
}
}
if (!docname || !*docname) docname = "emergency";
....
}
Similar errors can be found in some other places:
V507 Pointer to local array 'buf' is stored outside the scope of this array. Such a pointer will become invalid. hsa-dump.c 704
static void
dump_hsa_symbol (FILE *f, hsa_symbol *symbol)
{
const char *name;
if (symbol->m_name)
name = symbol->m_name;
else
{
char buf[64];
sprintf (buf, "__%s_%i", hsa_seg_name (symbol->m_segment),
symbol->m_name_number);
name = buf;
}
fprintf (f, "align(%u) %s_%s %s",
hsa_byte_alignment (symbol->m_align),
hsa_seg_name(symbol->m_segment),
hsa_type_name(symbol->m_type & ~BRIG_TYPE_ARRAY_MASK),
name);
....
}
V507 Pointer to local array 'buffer' is stored outside the scope of this array. Such a pointer will become invalid. media_codec_test.c 793
void extract_input_aacdec_m4a_test(
App * app, unsigned char **data, int *size, bool * have_frame)
{
....
unsigned char buffer[100000];
....
DONE:
*data = buffer;
*have_frame = TRUE;
if (read_size >= offset)
*size = offset;
else
*size = read_size;
}
V507 CWE-562 Pointer to local array 'buf' is stored outside the scope of this array. Such a pointer will become invalid. transport.cpp 1030
int register_socket_transport(int s, const char* serial, int port, int local) {
atransport* t = new atransport();
if (!serial) {
char buf[32];
snprintf(buf, sizeof(buf), "T-%p", t);
serial = buf;
}
....
}
