patch 8.2.1773: crash when calling mapset() with a list as first argument

Problem: Crash when calling mapset() with a list as first argument. Solution: Check for NULL. (closes #7040)
2020-09-29 21:45:41 +02:00
parent f43e7ac4ee
commit 1b9129809d
3 changed files with 6 additions and 0 deletions
--- a/src/map.c
+++ b/src/map.c
@@ -2304,6 +2304,8 @@ f_mapset(typval_T *argvars, typval_T *rettv UNUSED)
    char_u	*arg;

    which = tv_get_string_buf_chk(&argvars[0], buf);
+    if (which == NULL)
+	return;
    mode = get_map_mode(&which, 0);
    is_abbr = (int)tv_get_number(&argvars[1]);