===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/input-keys.c,v
retrieving revision 1.54
retrieving revision 1.55
diff -c -r1.54 -r1.55
*** src/usr.bin/tmux/input-keys.c	2016/03/01 12:02:08	1.54
--- src/usr.bin/tmux/input-keys.c	2016/03/02 15:33:36	1.55
***************
*** 1,4 ****
! /* $OpenBSD: input-keys.c,v 1.54 2016/03/01 12:02:08 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: input-keys.c,v 1.55 2016/03/02 15:33:36 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 263,268 ****
--- 263,270 ----
  		len = xsnprintf(buf, sizeof buf, "\033[<%u;%u;%u%c",
  		    m->sgr_b, x + 1, y + 1, m->sgr_type);
  	} else if (wp->screen->mode & MODE_MOUSE_UTF8) {
+ 		if (m->b > 0x7ff - 32 || x > 0x7ff - 33 || y > 0x7ff - 33)
+ 			return;
  		len = xsnprintf(buf, sizeof buf, "\033[M");
  		len += input_split2(m->b + 32, &buf[len]);
  		len += input_split2(x + 33, &buf[len]);