>>730
ありがとうございます．指摘の通りバッファの扱いが不適切なのかもしれません．
まず，BSODのメッセージとWinDbgの結果を添付します．
*** STOP: 0x0000008E (0xC0000005, 0x80576D6F, 0xECE8CC14, 0x00000000)

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - "0x%08lx"
FAULTING_IP:
nt!NtWriteFile+321
80576d6f ff530c call dword ptr [ebx+0Ch]
TRAP_FRAME: ece8cc14 -- (.trap 0xffffffffece8cc14)
ErrCode = 00000000
...
nt!NtWriteFile+0x321:
80576d6f ff530c call dword ptr [ebx+0Ch] ds:0023:0000000c=????????
Resetting default scope

DEFAULT_BUCKET_ID: DRIVER_FAULT
BUGCHECK_STR: 0x8E
PROCESS_NAME: explorer.exe
LAST_CONTROL_TRANSFER: from 8051f8ad to 8053580e

STACK_TEXT:
ece8c7dc 8051f8ad 0000008e c0000005 80576d6f nt!KeBugCheckEx+0x1b
ece8cba4 804e1235 ece8cbc0 00000000 ece8cc14 nt!KiDispatchException+0x3b1
ece8cc0c 804e11e6 ece8cd38 80576d6f badb0d00 nt!CommonDispatchException+0x4d
ece8cc3c 80566ba5 00000000 00000023 00000023 nt!KiExceptionExit+0x18a
ece8cd38 804e07ec 00000924 00000000 00000000 nt!ExMapHandleToPointerEx+0x21
ece8cd38 7c94e4f4 00000924 00000000 00000000 nt!KiFastCallEntry+0xf8
046ae084 7c94df6c 7c810e86 00000924 00000000 ntdll!KiFastSystemCallRet
046ae088 7c810e86 00000924 00000000 00000000 ntdll!ZwWriteFile+0xc
046ae0e8 7c8283dc 00000924 04590000 0000b29c kernel32!WriteFile+0xf7