From: schwarze@mdocml.bsd.lv
To: source@mdocml.bsd.lv
Subject: mdocml: Fix a read buffer overrun triggered by trailing \s- or trailing
Date: Thu, 1 Jan 2015 13:12:15 -0500 (EST) [thread overview]
Message-ID: <13606321612955875006.enqueue@fantadrom.bsd.lv> (raw)
Log Message:
-----------
Fix a read buffer overrun triggered by trailing \s- or trailing \s+
without the required subsequent argument; found by jsg@ with afl.
Modified Files:
--------------
mdocml:
mandoc.c
Revision Data
-------------
Index: mandoc.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/mandoc.c,v
retrieving revision 1.89
retrieving revision 1.90
diff -Lmandoc.c -Lmandoc.c -u -p -r1.89 -r1.90
--- mandoc.c
+++ mandoc.c
@@ -1,7 +1,7 @@
/* $Id$ */
/*
- * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011-2015 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -225,7 +225,7 @@ mandoc_escape(const char **end, const ch
/* See +/- counts as a sign. */
if ('+' == **end || '-' == **end || ASCII_HYPH == **end)
- (*end)++;
+ *start = ++*end;
switch (**end) {
case '(':
--
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