patch 8.0.0948: crash if timer closes window while dragging status line commit https://github.com/vim/vim/commit/989a70c590c2bd109eb362d3a0e48cb1427ae13d Author: Bram Moolenaar <Bram@vim.org> Date: Wed Aug 16 22:46:01 2017 +0200 patch 8.0.0948: crash if timer closes window while dragging status line Problem: Crash if timer closes window while dragging status line. Solution: Check if the window still exists. (Yasuhiro Matsumoto, closes #1979)

--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -4382,6 +4382,8 @@ f_getchar(typval_T *argvars, typval_T *r
 		/* Find the window at the mouse coordinates and compute the
 		 * text position. */
 		win = mouse_find_win(&row, &col);
+		if (win == NULL)
+		    return;
 		(void)mouse_comp_pos(win, &row, &col, &lnum);
 # ifdef FEAT_WINDOWS
 		for (wp = firstwin; wp != win; wp = wp->w_next)