From: Po Lu <luangruo@yahoo.com>
Date: Tue, 3 Jan 2023 07:12:39 +0000 (+0800)
Subject: Fix potential crash with fast mouse position enabled
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=b5b6159d036fd167c6cab21532c2fdd587051d28;p=emacs.git

Fix potential crash with fast mouse position enabled

* src/xterm.c (x_free_frame_resources): Clear
last_mouse_motion_frame and last_mouse_frame if required.
---

diff --git a/src/xterm.c b/src/xterm.c
index 8d8b0a0c0aa..028bb7582c4 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -28841,6 +28841,13 @@ x_free_frame_resources (struct frame *f)
   if (f == hlinfo->mouse_face_mouse_frame)
     reset_mouse_highlight (hlinfo);
 
+  /* These two need to be freed now that they are used to compute the
+     mouse position, I think.  */
+  if (f == dpyinfo->last_mouse_motion_frame)
+    dpyinfo->last_mouse_motion_frame = NULL;
+  if (f == dpyinfo->last_mouse_frame)
+    dpyinfo->last_mouse_frame = NULL;
+
 #ifdef HAVE_XINPUT2
   /* Consider a frame being unfocused with no following FocusIn event
      while an older focus from another seat exists.  The client