fsRightsInheriting

(typename $fdstat
  (record
    ;;; File type.
    (field $fs_filetype $filetype)
    ;;; File descriptor flags.
    (field $fs_flags $fdflags)
    ;;; Rights that apply to this file descriptor.
    (field $fs_rights_base $rights)
    ;;; Maximum set of rights that may be installed on new file descriptors that
    ;;; are created through this file descriptor, e.g., through `path_open`.
    (field $fs_rights_inheriting $rights)
  )
)