Kernel Resource Leak
Occurs when a kernel object handle is created but never closed.
ID | Code Location | Description |
|---|---|---|
1 | Creation site | Represents the location and associated call stack from which the handle was created. |
C Example
HANDLE hThread = CreateThread(0, 8192, work0, NULL, 0, NULL); return;
Fortran Example
ThreadHandle = CreateThread(security, stack_size, Thread_Proc,loc(ivalue), CREATE_SUSPENDED, thread_id) end
Possible Correction Strategies
Use the appropriate function to close the handle after use.
Creation Function | Close Function |
|---|---|
BeginUpdateResource | EndUpdateResource |
CreateConsoleScreenBuffer | CloseHandle |
CreateEvent , OpenEvent | CloseHandle |
CreateFile , ReOpenFile | CloseHandle |
CreateFileMapping , OpenFileMapping | CloseHandle |
CreateIoCompletionPort | CloseHandle |
CreateJobObject | CloseHandle |
CreateMailslot | CloseHandle |
CreateMemoryResourceNotification | CloseHandle |
CreateMutex , OpenMutex | CloseHandle |
CreatePipe , CreateNamedPipe | CloseHandle |
CreateProcess , OpenProcess | CloseHandle |
CreateProcessAsUser , CreateProcessWithLogon | CloseHandle |
CreateSemaphore , OpenSemaphore | CloseHandle |
CreateThread , CreateRemoteThread , OpenThread | CloseHandle |
CreateToken , CreateRestrictedToken | CloseHandle |
CreateToolhelp32Snapshot | CloseHandle |
CreateWaitableTimer , OpenWaitableTimer | CloseHandle |
DuplicateHandle | CloseHandle |
DuplicateToken | CloseHandle |
FindFirstChangeNotification | FindCloseChangeNotification |
FindFirstFile , FindFirstFileEx , FindFirstFileTransacted | FindClose |
FindFirstStreamW , FindFirstStreamTransactedW | FindClose |
InitializeCriticalSection , InitializeCriticalSectionAndSpinCount | DeleteCriticalSection |
LogonUser | CloseHandle |
OpenEventLog , OpenBackupEventLog | CloseEventLog |
OpenProcessToken , OpenThreadToken | CloseHandle |
RegisterEventSource | DeregisterEventSource |
WSASocket , socket | closesocket |