Fix segfaults in 'kbd_buffer_get_event'

* src/keyboard.c (kbd_buffer_get_event): Ignore selection-request
events when accessing the frame of an event.  Suggested by dick
r. chiang <dick.r.chiang@gmail.com>.  (Bug#80558)

1 files changed, 5 insertions, 1 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 8753bebce9c..c16cc5277e9 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -4201,7 +4201,11 @@ kbd_buffer_get_event (KBOARD **kbp,
       if (*kbp == 0)
         *kbp = current_kboard;  /* Better than returning null ptr?  */
 
-      if (FRAMEP (event->ie.frame_or_window))
+      /* Selection-request events never have frames, they are actually
+         instances of 'struct selection_input_event'.  */
+      if (!(event->kind == SELECTION_REQUEST_EVENT
+            || event->kind == SELECTION_CLEAR_EVENT)
+          && FRAMEP (event->ie.frame_or_window))
         *event_frame = XFRAME (event->ie.frame_or_window);
 
       obj = Qnil;