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https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
Summary: perl: double free or corruption (!prev) Product: Fedora Core Version: devel Platform: i386 OS/Version: Linux Status: NEW Severity: normal Priority: normal Component: perl AssignedTo: wtogami@redhat.com ReportedBy: rvokal@redhat.com QAContact: dkl@redhat.com CC: fedora-perl-devel-list@redhat.com
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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b5) Gecko/20051008 Fedora/1.5-0.5.0.beta2 Firefox/1.4.1
Description of problem: A sample perl module for net-snmp causes double free corruption
# perl ./perl_module.pl starting perl_module.pl perl_module.pl loaded ok registering at netSnmp.999 NET-SNMP version 5.2.2.rc1 AgentX subagent connected started us as a subagent (NetSNMP::agent=HASH(0x917c360)) shutting down mainloop excercised *** glibc detected *** perl: double free or corruption (!prev): 0x091c3768 ***
Version-Release number of selected component (if applicable): perl-5.8.7-0.5.fc5.i386
How reproducible: Always
Steps to Reproduce: 1. start net-snmp add following line to snmpd.conf
master agentx
2. start perl module (perl /path/to/perl_module.pl) 3. hit ctrl-c
Additional info:
testing with rawhide net-snmp
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Summary: perl: double free or corruption (!prev)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
------- Additional Comments From rvokal@redhat.com 2005-10-19 08:12 EST ------- Created an attachment (id=120156) --> (https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=120156&action=vie...) strace output
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Summary: perl: double free or corruption (!prev)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
------- Additional Comments From rvokal@redhat.com 2005-10-19 08:13 EST ------- Created an attachment (id=120157) --> (https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=120157&action=vie...) perl module
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Summary: perl: double free or corruption (!prev)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
wtogami@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO_REPORTER
------- Additional Comments From wtogami@redhat.com 2005-10-19 10:32 EST ------- Could you please test this in previous dists, especially RHEL versions?
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Summary: perl: double free or corruption (!prev)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
rvokal@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO_REPORTER |NEEDINFO_ENG
------- Additional Comments From rvokal@redhat.com 2005-10-19 10:41 EST ------- This worked on RHEL3, works on RHEL4, only rawhide seems to be broken.
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Summary: perl: double free or corruption (!prev)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
wtogami@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO_ENG |ASSIGNED
------- Additional Comments From wtogami@redhat.com 2005-10-19 10:47 EST ------- Thanks for the analysis. Can someone in the perl team report this upstream and cross-reference with bug numbers?
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Summary: perl: double free or corruption (!prev)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
jvdias@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO
------- Additional Comments From jvdias@redhat.com 2005-10-24 17:30 EST ------- I cannot reproduce this bug with net-snmp-5.2.1.2-3, glibc-2.3.90-15, and perl-5.8.7-0.5.fc5 .
I added the 'master agentx' to the default /etc/snmp/snmpd.conf file .
$ ./perl_module.pl starting perl_module.pl perl_module.pl loaded ok registering at netSnmp.999 started us as a subagent (NetSNMP::agent=HASH(0x90514cc)) ( pressed CTRL-C ) shutting down mainloop excercised
I repeated this 10 times in a row with no glibc double free detected and a 0 exit status . The /var/net-snmp/perl.conf file was written OK .
Can you still reproduce this ?
If so, does the /etc/snmp/snmpd.conf configuration file you use differ in any way from the default, with 'master agentx' added at the end ?
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Summary: perl: double free or corruption (!prev)
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171197
rvokal@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |CLOSED Resolution| |RAWHIDE
------- Additional Comments From rvokal@redhat.com 2005-10-25 03:33 EST ------- Seems to be gone
# rpm -q perl glibc perl-5.8.7-0.5.fc5.i386 glibc-2.3.90-14.i686
Can't say if it was glibc issue, I keep my test box rawhide up2date :)
Closing as rawhide
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