From 353b2f1dc066ac2d6ed406b726fb8ac18cabab5f Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Tue, 19 Aug 2014 17:31:55 +0000
Subject: Do not dereference a NULL pointer if a .Bl macro has no -type,
 -width, -offset or -compact arguments whatsoever; this got broken in rev.
 1.238.

---
 mdoc_validate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mdoc_validate.c b/mdoc_validate.c
index ae6acec1..f97f1dfb 100644
--- a/mdoc_validate.c
+++ b/mdoc_validate.c
@@ -529,7 +529,7 @@ pre_bl(PRE_ARGS)
 	 * ones.  If we find no list type, we default to LIST_item.
 	 */
 
-	wa = n->args->argv;
+	wa = (n->args == NULL) ? NULL : n->args->argv;
 	mdoclt = MDOC_ARG_MAX;
 	for (i = 0; n->args && i < (int)n->args->argc; i++) {
 		argv = n->args->argv + i;
-- 
cgit