From cc1572ad8c1416147be5842b72548f687cefd002 Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Wed, 8 Mar 2017 13:18:10 +0000
Subject: prevent infinite recursion while expanding the arguments of a
 user-defined macro; issue found by tb@ with afl(1)

---
 regress/roff/de/infinite.in | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'regress/roff/de/infinite.in')

diff --git a/regress/roff/de/infinite.in b/regress/roff/de/infinite.in
index 683eba7f..b6dac1f7 100644
--- a/regress/roff/de/infinite.in
+++ b/regress/roff/de/infinite.in
@@ -7,6 +7,12 @@
 .Sh DESCRIPTION
 initial text
 .de mym
+.Op \\$1 \\$2
+..
+.mym $1 \$1
+.mym \$1 nothing
+middle text
+.de mym
 .mym
 not printed
 ..
-- 
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