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Fix a segfault on an incomplete STYLE tag.

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Gijs van Tulder 2012-04-01 23:29:16 +02:00 committed by Giuseppe Scrivano
parent b30ba732ad
commit 08a147c672
3 changed files with 9 additions and 3 deletions
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1
NEWS
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@ -34,6 +34,7 @@ Please send GNU Wget bug reports to <bug-wget@gnu.org>.
** Return a network failure when FTP downloads fail and --timestamping
is specified.
** Fix a segfault on an incomplete STYLE tag.
* Changes in Wget 1.13.3

4
src/ChangeLog
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@ -1,3 +1,7 @@
2012-04-01 Gijs van Tulder <gvtulder@gmail.com>
* html-url.c: Prevent crash on incomplete STYLE tag.
2012-04-01 Giuseppe Scrivano <gscrivano@gnu.org>
* gnutls.c (wgnutls_read_timeout): Ensure timer is freed.

7
src/html-url.c
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@ -1,6 +1,6 @@
/* Collect URLs from HTML source.
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
This file is part of GNU Wget.
@ -675,8 +675,9 @@ collect_tags_mapper (struct taginfo *tag, void *arg)
check_style_attr (tag, ctx);
if (tag->end_tag_p && (0 == strcasecmp (tag->name, "style")) &&
tag->contents_begin && tag->contents_end)
if (tag->end_tag_p && (0 == strcasecmp (tag->name, "style"))
&& tag->contents_begin && tag->contents_end
&& tag->contents_begin <= tag->contents_end)
{
/* parse contents */
get_urls_css (ctx, tag->contents_begin - ctx->text,