1 files changed, 3 insertions, 0 deletions
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 2377d1957..0703b44f1 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -1930,6 +1930,9 @@ f_ch_logfile(typval_T *argvars, typval_T *rettv UNUSED)
     char_u *opt = (char_u *)"";
     char_u buf[NUMBUFLEN];
 
+    /* Don't open a file in restricted mode. */
+    if (check_restricted() || check_secure())
+	return;
     fname = get_tv_string(&argvars[0]);
     if (argvars[1].v_type == VAR_STRING)
 	opt = get_tv_string_buf(&argvars[1], buf);