===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mandoc/roff.c,v
retrieving revision 1.164
retrieving revision 1.165
diff -c -r1.164 -r1.165
*** src/usr.bin/mandoc/roff.c	2017/03/08 13:17:28	1.164
--- src/usr.bin/mandoc/roff.c	2017/03/09 15:27:52	1.165
***************
*** 1,4 ****
! /*	$OpenBSD: roff.c,v 1.164 2017/03/08 13:17:28 schwarze Exp $ */
  /*
   * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
   * Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
--- 1,4 ----
! /*	$OpenBSD: roff.c,v 1.165 2017/03/09 15:27:52 schwarze Exp $ */
  /*
   * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
   * Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
***************
*** 3090,3095 ****
--- 3090,3097 ----
  		else if (++expand_count > EXPAND_LIMIT) {
  			mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,
  			    ln, (int)(cp - n1), NULL);
+ 			free(buf->buf);
+ 			buf->buf = n1;
  			return ROFF_IGN;
  		}