commit a5d3590505fc3e1deea990560d472baa563abed7
author LemonBoy <thatlemon@gmail.com> Fri Apr 29 21:15:02 2022 +0100
committer Bram Moolenaar <Bram@vim.org> Fri Apr 29 21:15:02 2022 +0100
tree e200256192c75945b72f039f507c10e9b1c5e306
parent bad8a013c238595aa206690210eb1367fbc878f9

patch 8.2.4847: crash when using uninitialized function pointer

Problem:    Crash when using uninitialized function pointer.
Solution:   Check for NULL pointer. (closes #10319, closes #10319)

src/eval.c

diff --git a/src/eval.c b/src/eval.c
index 61b09fb..e2980a2 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -5314,7 +5314,8 @@
 
 		if (echo_style)
 		{
-		    r = make_ufunc_name_readable(tv->vval.v_string,
+		    r = tv->vval.v_string == NULL ? (char_u *)"function()"
+				  : make_ufunc_name_readable(tv->vval.v_string,
 						       buf, MAX_FUNC_NAME_LEN);
 		    if (r == buf)
 		    {