Bug 1107732 - Perl core-dumps if a hash is tied to DB_File before spawning a thread
Summary: Perl core-dumps if a hash is tied to DB_File before spawning a thread
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: perl-DB_File
Version: 20
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: ---
Assignee: Petr Pisar
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
: 1107731 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-06-10 13:41 UTC by Petr Pisar
Modified: 2015-06-01 08:44 UTC (History)
3 users (show)

Fixed In Version: perl-DB_File-1.831-4.fc20
Doc Type: Bug Fix
Doc Text:
Clone Of: 1107728
Environment:
Last Closed: 2015-06-01 08:44:54 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
CPAN 96357 0 None None None Never

Description Petr Pisar 2014-06-10 13:41:49 UTC
+++ 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.

Comment 1 Petr Pisar 2014-06-10 13:45:11 UTC
*** Bug 1107731 has been marked as a duplicate of this bug. ***

Comment 2 Petr Pisar 2014-08-07 14:36:13 UTC
Fixed as perl-DB_File-1.831-3.fc21 in F21.

Comment 3 Fedora Update System 2014-08-07 14:42:07 UTC
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

Comment 4 Petr Pisar 2014-08-07 16:18:05 UTC
Fixed as perl-DB_File-1.831-4.fc21 in F21.

Comment 5 Fedora Update System 2014-08-07 16:18:24 UTC
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

Comment 6 Fedora Update System 2014-08-08 06:05:19 UTC
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

Comment 7 Fedora Update System 2014-08-16 00:26:32 UTC
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.

Comment 8 Fedora Update System 2014-08-19 07:07:04 UTC
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.

Comment 9 Fedora End Of Life 2015-05-29 12:04:42 UTC
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 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
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