Fix some sandbox memory leaks

sandbox/win/src/filesystem_interception.cc

Index: sandbox/win/src/filesystem_interception.cc
diff --git a/sandbox/win/src/filesystem_interception.cc b/sandbox/win/src/filesystem_interception.cc
index 179cad5e62f2e676322751ef7513148fd86045c2..043e1fa4012cdc2513121d7f95b86fb27bb4c203 100644
--- a/sandbox/win/src/filesystem_interception.cc
+++ b/sandbox/win/src/filesystem_interception.cc
@@ -74,14 +74,15 @@ NTSTATUS WINAPI TargetNtCreateFile(NtCreateFileFunction orig_CreateFile,
     if (SBOX_ALL_OK != code)
       break;
 
+    status = answer.nt_status;
+
     if (!NT_SUCCESS(answer.nt_status))
-        return answer.nt_status;
+      break;
 
     __try {
       *file = answer.handle;
       io_status->Status = answer.nt_status;
       io_status->Information = answer.extended[0].ulong_ptr;
-      status = io_status->Status;
     } __except(EXCEPTION_EXECUTE_HANDLER) {
       break;
     }
@@ -145,14 +146,15 @@ NTSTATUS WINAPI TargetNtOpenFile(NtOpenFileFunction orig_OpenFile, PHANDLE file,
     if (SBOX_ALL_OK != code)
       break;
 
+    status = answer.nt_status;
+
     if (!NT_SUCCESS(answer.nt_status))
-      return answer.nt_status;
+      break;
 
     __try {
       *file = answer.handle;
       io_status->Status = answer.nt_status;
       io_status->Information = answer.extended[0].ulong_ptr;
-      status = io_status->Status;
     } __except(EXCEPTION_EXECUTE_HANDLER) {
       break;
     }
@@ -208,12 +210,10 @@ NTSTATUS WINAPI TargetNtQueryAttributesFile(
     ResultCode code = CrossCall(ipc, IPC_NTQUERYATTRIBUTESFILE_TAG, name,
                                 attributes, file_info, &answer);
 
-    operator delete(name, NT_ALLOC);
-
     if (SBOX_ALL_OK != code)
       break;
 
-    return answer.nt_status;
+    status = answer.nt_status;
 
   } while (false);
 
@@ -269,12 +269,10 @@ NTSTATUS WINAPI TargetNtQueryFullAttributesFile(
     ResultCode code = CrossCall(ipc, IPC_NTQUERYFULLATTRIBUTESFILE_TAG, name,
                                 attributes, file_info, &answer);
 
-    operator delete(name, NT_ALLOC);
-
     if (SBOX_ALL_OK != code)
       break;
 
-    return answer.nt_status;
+    status = answer.nt_status;
   } while (false);
 
   if (name)