From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-469807-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 28320 invoked by alias); 8 Dec 2014 21:45:13 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 28271 invoked by uid 48); 8 Dec 2014 21:45:09 -0000
From: "Joost.VandeVondele at mat dot ethz.ch" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/64230] [4.9/5 Regression] Segmentation fault - invalid memory reference in a compiler-generated finalizer for a complicated type hierarchy when a polymorphic variable is allocated in an external procedure.
Date: Mon, 08 Dec 2014 21:45:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Version: 4.9.1
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: Joost.VandeVondele at mat dot ethz.ch
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.9.3
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_status cf_reconfirmed_on cc cf_known_to_work target_milestone short_desc everconfirmed cf_known_to_fail
Message-ID: <bug-64230-4-5jeCwQgX0e@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-64230-4@http.gcc.gnu.org/bugzilla/>
References: <bug-64230-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2014-12/txt/msg00814.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64230

Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-12-08
                 CC|                            |Joost.VandeVondele at mat dot ethz
                   |                            |.ch
      Known to work|                            |4.8.3
   Target Milestone|---                         |4.9.3
            Summary|Segmentation fault -        |[4.9/5 Regression]
                   |invalid memory reference in |Segmentation fault -
                   |a compiler-generated        |invalid memory reference in
                   |finalizer for a complicated |a compiler-generated
                   |type hierarchy when a       |finalizer for a complicated
                   |polymorphic variable is     |type hierarchy when a
                   |allocated in an external    |polymorphic variable is
                   |procedure.                  |allocated in an external
                   |                            |procedure.
     Ever confirmed|0                           |1
      Known to fail|                            |4.9.2, 5.0

--- Comment #1 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
yes, confirmed, also with trunk (and -fsanitize=undefined)

> gfortran -g -fno-omit-frame-pointer -fsanitize=undefined t.f90 && ./a.out
t.f90:24: runtime error: member access within null pointer of type 'struct t6'