[wp-trac] [WordPress Trac] #16892: make_clickable segfault

WordPress Trac wp-trac at lists.automattic.com
Fri Mar 18 17:45:16 UTC 2011 

#16892: make_clickable segfault
--------------------------+-----------------------------
 Reporter:  westi         |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Formatting    |    Version:  3.1
 Severity:  normal        |   Keywords:  needs-patch
--------------------------+-----------------------------
 Running the following nasty comment text through make_clickable segfaults:

 {{{
 <?php
 require dirname(__FILE__) . '/wp-load.php';

 $comment= "http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-title/";

 make_clickable($comment);
 }}}

 gdb segfault details:
 {{{
 Program received signal SIGSEGV, Segmentation fault.
 match (
     eptr=0x2aaab052996c "le/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/pos"..., ecode=0x10c6971 "^",
     mstart=0x2aaab05282b1 "http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-
 title/http://example.com/2011/03/18/post-t"..., markptr=0x0, offset_top=2,
 md=0x7fffffffad70,
     ims=5, eptrb=0x0, flags=0, rdepth=11626) at
 /usr/local/src/php-5.3.5/ext/pcre/pcrelib/pcre_exec.c:1221
 1221    /usr/local/src/php-5.3.5/ext/pcre/pcrelib/pcre_exec.c: No such
 file or directory.
         in /usr/local/src/php-5.3.5/ext/pcre/pcrelib/pcre_exec.c
 }}}

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/16892>
WordPress Trac <http://core.trac.wordpress.org/>
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