IIUC crash is triggered by this fragment:

  13212    else if (EQ (selected_window, minibuf_window)
  13213             && (current_buffer->clip_changed || window_outdated (w))
  13214             && resize_mini_window (w, 0))

So selected_window is the same as minibuf_window, and w->buffer is not the
same as current_buffer; but, is w equal to XWINDOW (selected_window) here?

Look above:

  13114    /* Notice any pending interrupt request to change frame size.  */
  13115    do_pending_window_change (1);
  13116
  13117    /* do_pending_window_change could change the selected_window due to
  13118       frame resizing which makes the selected window too small.  */
  13119    if (WINDOWP (selected_window) && (w = XWINDOW (selected_window)) != sw)
  13120      {
  13121        sw = w;
  13122        reconsider_clip_changes (w, current_buffer);
  13123      }
  13124
  13125    /* Clear frames marked as garbaged.  */
  13126    clear_garbaged_frames ();
  13127
  13128    /* Build menubar and tool-bar items.  */
  13129    if (NILP (Vmemory_full))
  13130      prepare_menu_bars ();

Here prepare_menu_bars can run Lisp and so change something.

  13131
  13132    if (windows_or_buffers_changed)
  13133      update_mode_lines++;
  13134
  13135    /* Detect case that we need to write or remove a star in the mode line.  */
  13136    if ((SAVE_MODIFF < MODIFF) != w->last_had_star)

If we ran Lisp above, how we can be sure that w is still equal to XWINDOW (selected_window)?

Can someone try this patch?

Dmitry