[Bug 1107732] New: Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732

            Bug ID: 1107732
           Summary: Perl core-dumps if a hash is tied to DB_File before
                    spawning a thread
           Product: Fedora
           Version: 19
         Component: perl-DB_File
          Severity: medium
          Assignee: ppisar(a)redhat.com
          Reporter: ppisar(a)redhat.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: perl-devel(a)lists.fedoraproject.org, ppisar(a)redhat.com,
                    psabata(a)redhat.com
   External Bug ID: CPAN 96357



+++ This bug was initially created as a clone of Bug #1107728 +++

+++ This bug was initially created as a clone of Bug #1107542 +++

+++ This bug was initially created as a clone of Bug #1104827 +++

Description of problem:

Perl script using SDBM_File module is core dumping. Seems to match this
upstream bug:  https://rt.perl.org/Public/Bug/Display.html?id=61912#txn-515026

[...]

Steps to Reproduce:

Create reproducer test script sdbm_test.pl containing the following lines, as
described in the upstream bug report:

    #!/usr/bin/perl

    use strict;
    use Fcntl;
    use SDBM_File;
    use threads;
    use threads::shared;

    my %dbtest;
    tie(%dbtest, 'SDBM_File', "test.db", O_RDWR|O_CREAT, 0666);

    for (1 .. 2)
    {
            my $thr = threads->new(\&testThread, $_);
            $thr->detach();
    }
    sleep 4;

    sub testThread
    {
            my $n = shift;
            print "thread #" . $n . " started\n";
    }

Make script executable and run which produces the following output:

    [root@util6vm ~]# chmod u+x sdbm_test.pl 
    [root@util6vm ~]# ./sdbm_test.pl 

Expected results:

No errors.

Actual results:

    thread #1 started
    thread #2 started
    *** glibc detected *** /usr/bin/perl: double free or corruption (out):
0x0000000000e2c2c0 ***
    ======= Backtrace: =========
    /lib64/libc.so.6[0x3d2ca76166]
    /lib64/libc.so.6[0x3d2ca78c93]
   
/usr/lib64/perl5/auto/SDBM_File/SDBM_File.so(XS_SDBM_File_DESTROY+0xc0)[0x7f9d58fb06f0]

[...]

----

DB_File (BerkeleyDB binding) in Fedora 20 and newer is affected too.

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732

Petr Pisar <ppisar(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|19                          |20



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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732



--- Comment #1 from Petr Pisar <ppisar(a)redhat.com&gt; ---
*** Bug 1107731 has been marked as a duplicate of this bug. ***

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732

Petr Pisar <ppisar(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|POST                        |MODIFIED
   Fixed In Version|                            |perl-DB_File-1.831-3.fc22



--- Comment #2 from Petr Pisar <ppisar(a)redhat.com&gt; ---
Fixed as perl-DB_File-1.831-3.fc21 in F21.

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732



--- Comment #3 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
perl-DB_File-1.831-2.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/perl-DB_File-1.831-2.fc20

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732

Petr Pisar <ppisar(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Fixed In Version|perl-DB_File-1.831-3.fc22   |perl-DB_File-1.831-4.fc22



--- Comment #4 from Petr Pisar <ppisar(a)redhat.com&gt; ---
Fixed as perl-DB_File-1.831-4.fc21 in F21.

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732



--- Comment #5 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
perl-DB_File-1.831-3.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/perl-DB_File-1.831-3.fc20

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732



--- Comment #6 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
perl-DB_File-1.831-4.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/perl-DB_File-1.831-4.fc20

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732



--- Comment #7 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
perl-DB_File-1.831-3.fc20 has been pushed to the Fedora 20 stable repository. 
If problems still persist, please make note of it in this bug report.

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732



--- Comment #8 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
perl-DB_File-1.831-4.fc20 has been pushed to the Fedora 20 stable repository. 
If problems still persist, please make note of it in this bug report.

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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732



--- Comment #9 from Fedora End Of Life <endoflife(a)fedoraproject.org&gt; ---
This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 20. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '20'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 20 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
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[Bug 1107732] Perl core-dumps if a hash is tied to DB_File before spawning a thread

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1107732

Petr Pisar <ppisar(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|MODIFIED                    |CLOSED
   Fixed In Version|perl-DB_File-1.831-4.fc22   |perl-DB_File-1.831-4.fc20
         Resolution|---                         |ERRATA
        Last Closed|                            |2015-06-01 04:44:54



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