file_open: don't bother with normalize path if trying to open \..

maharmstone · Mar 17, 2023 · 69ea164 · 69ea164
1 parent dc55e1b
commit 69ea164
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/ntfs.cpp b/src/ntfs.cpp
@@ -501,6 +501,9 @@ static EFI_STATUS EFIAPI file_open(struct _EFI_FILE_HANDLE* File, struct _EFI_FI
  if (fn.empty())
  return EFI_NOT_FOUND;
 
+ if (file->ino == NTFS_ROOT_DIR_INODE && fn == u"..")
+ return EFI_INVALID_PARAMETER;
+
  Status = normalize_path(fn, u16string_view(file->name, file->name_len), name, name_len);
  if (EFI_ERROR(Status)) {
  do_print_error("normalize_path", Status);