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Bug 1171938 - memory corruption when migrate_to_uri
Summary: memory corruption when migrate_to_uri
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: perl-Sys-Virt
Version: 7.2
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: 7.1
Assignee: Daniel Berrangé
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-12-09 03:25 UTC by Hao Liu
Modified: 2015-03-05 10:54 UTC (History)
4 users (show)

Fixed In Version: perl-Sys-Virt-1.2.8-5.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-03-05 10:54:21 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0470 0 normal SHIPPED_LIVE perl-Sys-Virt bug fix and enhancement update 2015-03-05 15:18:19 UTC

Description Hao Liu 2014-12-09 03:25:48 UTC 
Description of problem:
memory corruption when migrate_to_uri

Version-Release number of selected component (if applicable):
perl-Sys-Virt-1.2.8-4.el7.x86_64

How reproducible:
always

Steps to Reproduce:
1. Prepare test perl script test.pl:
# -*- perl -*-
use strict;
use warnings;
use Sys::Virt;

my ($domname, $dsturi)= @ARGV;
my $c = Sys::Virt->new();
my $dom = $c->get_domain_by_name($domname);

$dom->migrate_to_uri($dsturi,  2);

2. Prepare VM test-vm to be migrated.

3. Run the script:
# perl test.pl test-vm qemu://xxx/xxx
*** Error in `perl': malloc(): memory corruption: 0x0000000002494e50 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x7ebcc)[0x7f77cd285bcc]
/lib64/libc.so.6(__libc_calloc+0xaa)[0x7f77cd287bba]
/lib64/libvirt.so.0(virAllocN+0x1d)[0x7f77c62d74dd]
/lib64/libvirt.so.0(virNetClientProgramCall+0x123)[0x7f77c64247e3]
/lib64/libvirt.so.0(+0x1823d2)[0x7f77c63fc3d2]
/lib64/libvirt.so.0(+0x18cc37)[0x7f77c6406c37]
/lib64/libvirt.so.0(virDomainMigrateToURI3+0x3d0)[0x7f77c63c1120]
/usr/local/lib64/perl5/auto/Sys/Virt/Virt.so(+0x47399)[0x7f77c6840399]
/usr/lib64/perl5/CORE/libperl.so(Perl_pp_entersub+0x58f)[0x7f77ce6132df]
/usr/lib64/perl5/CORE/libperl.so(Perl_runops_standard+0x16)[0x7f77ce60ba56]
/usr/lib64/perl5/CORE/libperl.so(perl_run+0x355)[0x7f77ce5a8825]
perl[0x400d99]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f77cd228af5]
perl[0x400dd1]

Expected results:
No memory corruption
Comment 2 Hao Liu 2014-12-09 05:18:59 UTC 
This is caused by a missing update of params count.

Patch has been post on upstream.
https://www.redhat.com/archives/libvir-list/2014-December/msg00484.html
Comment 5 zhe peng 2014-12-24 03:16:35 UTC 
can reproduced with build perl-Sys-Virt-1.2.8-4.el7.x86_64

verify with build:
perl-Sys-Virt-1.2.8-6.el7.x86_64

step:
 1. create env.
 2. perl test.pl rhel7 qemu+ssh://target_ip/system

no error occured. check migration, all worked well, move to verified.
Comment 7 errata-xmlrpc 2015-03-05 10:54:21 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0470.html
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