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* [Bug libmudflap/23084] New: mudflap crash upon accept() with argement 2 and 3 as NULL
@ 2005-07-26 18:53 syzop at vulnscan dot org
  2005-07-26 18:56 ` [Bug libmudflap/23084] " syzop at vulnscan dot org
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: syzop at vulnscan dot org @ 2005-07-26 18:53 UTC (permalink / raw)
  To: gcc-bugs

Mudflap crashes when it sees an accept in the form of:
accept(lsock, NULL, NULL)
and does not crash upon:
accept(lsock, &addr, &len);

The former case is - AFAIK - legal, quoting from the accept() manpage:
'When addr is NULL nothing is filled in.'

Attached is a minimal C program to reproduce this bug.

I tried this both on 4.0.0 and 4.0.1.

-- 
           Summary: mudflap crash upon accept() with argement 2 and 3 as
                    NULL
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libmudflap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: syzop at vulnscan dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: gcc 4.0.1 20050720 (Red Hat 4.0.1-4)
GCC target triplet: Linux 2.6.11-1 -- Fedora Core 4 w/updates-testing


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23084


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug libmudflap/23084] mudflap crash upon accept() with argement 2 and 3 as NULL
  2005-07-26 18:53 [Bug libmudflap/23084] New: mudflap crash upon accept() with argement 2 and 3 as NULL syzop at vulnscan dot org
@ 2005-07-26 18:56 ` syzop at vulnscan dot org
  2005-07-26 19:34 ` pinskia at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 6+ messages in thread
From: syzop at vulnscan dot org @ 2005-07-26 18:56 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From syzop at vulnscan dot org  2005-07-26 18:53 -------
Created an attachment (id=9369)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9369&action=view)
C program to reproduce this mudflap bug

Compiled with:
gcc -o mudflaptest mudflaptest.c -Wall -fmudflap -lmudflap

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23084


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug libmudflap/23084] mudflap crash upon accept() with argement 2 and 3 as NULL
  2005-07-26 18:53 [Bug libmudflap/23084] New: mudflap crash upon accept() with argement 2 and 3 as NULL syzop at vulnscan dot org
  2005-07-26 18:56 ` [Bug libmudflap/23084] " syzop at vulnscan dot org
@ 2005-07-26 19:34 ` pinskia at gcc dot gnu dot org
  2005-09-23 21:58 ` fche at redhat dot com
  2005-09-23 21:59 ` cvs-commit at gcc dot gnu dot org
  3 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-07-26 19:34 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2005-07-26 18:56 -------
Confirmed by looking at the source.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
  GCC build triplet|gcc 4.0.1 20050720 (Red Hat |
                   |4.0.1-4)                    |
 GCC target triplet|Linux 2.6.11-1 -- Fedora    |
                   |Core 4 w/updates-testing    |
   Last reconfirmed|0000-00-00 00:00:00         |2005-07-26 18:56:11
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23084


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug libmudflap/23084] mudflap crash upon accept() with argement 2 and 3 as NULL
  2005-07-26 18:53 [Bug libmudflap/23084] New: mudflap crash upon accept() with argement 2 and 3 as NULL syzop at vulnscan dot org
  2005-07-26 18:56 ` [Bug libmudflap/23084] " syzop at vulnscan dot org
  2005-07-26 19:34 ` pinskia at gcc dot gnu dot org
@ 2005-09-23 21:58 ` fche at redhat dot com
  2005-09-23 21:59 ` cvs-commit at gcc dot gnu dot org
  3 siblings, 0 replies; 6+ messages in thread
From: fche at redhat dot com @ 2005-09-23 21:58 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From fche at redhat dot com  2005-09-23 21:58 -------
patch committed

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23084


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug libmudflap/23084] mudflap crash upon accept() with argement 2 and 3 as NULL
  2005-07-26 18:53 [Bug libmudflap/23084] New: mudflap crash upon accept() with argement 2 and 3 as NULL syzop at vulnscan dot org
                   ` (2 preceding siblings ...)
  2005-09-23 21:58 ` fche at redhat dot com
@ 2005-09-23 21:59 ` cvs-commit at gcc dot gnu dot org
  3 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-09-23 21:59 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-09-23 21:58 -------
Subject: Bug 23084

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	fche@gcc.gnu.org	2005-09-23 21:58:42

Modified files:
	libmudflap     : ChangeLog mf-hooks2.c 

Log message:
	2005-09-23  Frank Ch. Eigler  <fche@elastic.org>
	
	PR 23084.
	* mf-hooks2.c (accept): Tolerate NULL sockaddr* parameter.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libmudflap/ChangeLog.diff?cvsroot=gcc&r1=1.72&r2=1.73
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libmudflap/mf-hooks2.c.diff?cvsroot=gcc&r1=1.14&r2=1.15



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23084


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug libmudflap/23084] mudflap crash upon accept() with argement 2 and 3 as NULL
       [not found] <bug-23084-11060@http.gcc.gnu.org/bugzilla/>
@ 2006-01-01 20:54 ` pinskia at gcc dot gnu dot org
  0 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-01-01 20:54 UTC (permalink / raw)
  To: gcc-bugs



-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23084



^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2006-01-01 20:54 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-07-26 18:53 [Bug libmudflap/23084] New: mudflap crash upon accept() with argement 2 and 3 as NULL syzop at vulnscan dot org
2005-07-26 18:56 ` [Bug libmudflap/23084] " syzop at vulnscan dot org
2005-07-26 19:34 ` pinskia at gcc dot gnu dot org
2005-09-23 21:58 ` fche at redhat dot com
2005-09-23 21:59 ` cvs-commit at gcc dot gnu dot org
     [not found] <bug-23084-11060@http.gcc.gnu.org/bugzilla/>
2006-01-01 20:54 ` pinskia at gcc dot gnu dot org

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