[Bug 606584] New: sigsegv in libcom_err
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c0 Summary: sigsegv in libcom_err Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: x86-64 OS/Version: openSUSE 11.2 Status: NEW Severity: Normal Priority: P5 - None Component: Other AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: m.munnix@redcross.be QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv:1.9.1.9) Gecko/20100317 SUSE/3.5.9-0.1.1 Firefox/3.5.9 when terminating a perl application script execution, got segfault: Program received signal SIGSEGV, Segmentation fault. 0x00007ffff49b693d in remove_error_table () from /lib64/libcom_err.so.2 $ rpm -qi libcom_err2-1.41.9-3.1.x86_64 Name : libcom_err2 Relocations: (not relocatable) Version : 1.41.9 Vendor: openSUSE Release : 3.1 Build Date: Mon 19 Oct 2009 08:28:54 PM CEST Install Date: Mon 18 Jan 2010 06:18:09 PM CET Build Host: build19 Group : System/Filesystems Source RPM: e2fsprogs-1.41.9-3.1.src.rpm Size : 42000 License: GPL v2 or later Signature : RSA/8, Mon 19 Oct 2009 08:29:34 PM CEST, Key ID b88b2fd43dbdc284 Packager : http://bugs.opensuse.org URL : http://e2fsprogs.sourceforge.net Summary : E2fsprogs error reporting library Description : com_err is an error message display library. Distribution: openSUSE 11.2 Reproducible: Always Steps to Reproduce: 1. 2. 3. after installing debuginfo package: Program received signal SIGSEGV, Segmentation fault. 0x00007ffff49b693d in remove_error_table (et=0x7ffff5097540) at error_message.c:282 282 error_message.c: No such file or directory. in error_message.c (gdb) bt #0 0x00007ffff49b693d in remove_error_table (et=0x7ffff5097540) at error_message.c:282 #1 0x00007ffff4dfea71 in krb5int_lib_fini () at krb5_libinit.c:95 #2 0x00007ffff4dfe9cf in __do_global_dtors_aux () from /usr/lib64/libkrb5.so.3 #3 0x0000000000000000 in ?? () -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c yang xiaoyu <xyyang@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |xyyang@novell.com AssignedTo|bnc-team-screening@forge.pr |jack@novell.com |ovo.novell.com | -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c1 Jan Kara <jack@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P3 - Medium Status|NEW |NEEDINFO InfoProvider| |m.munnix@redcross.be --- Comment #1 from Jan Kara <jack@novell.com> 2010-05-18 10:14:08 UTC --- Hmm, could you please provide the coredump? Either attach it here if it is small or put it somewhere where I can download it. Or even better would be if your could provide the Perl application that segfaults for you so that I can reproduce the problem. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c2 --- Comment #2 from michel munnix <m.munnix@redcross.be> 2010-05-18 18:09:02 UTC --- Created an attachment (id=363016) --> (http://bugzilla.novell.com/attachment.cgi?id=363016) core file -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c3 michel munnix <m.munnix@redcross.be> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|m.munnix@redcross.be | --- Comment #3 from michel munnix <m.munnix@redcross.be> 2010-05-18 18:13:05 UTC --- Created an attachment (id=363017) --> (http://bugzilla.novell.com/attachment.cgi?id=363017) perl script I stripped most of the perl code not needed to get the segfault and generated the attached core file. If you want to reproduce, you'll need your own ldap server. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c4 Jan Kara <jack@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |m.munnix@redcross.be --- Comment #4 from Jan Kara <jack@novell.com> 2010-06-05 00:12:19 UTC --- I was looking into the core file but I couldn't tell much from it (somehow gdb was confused when I tried to inspect required functions, address whose access supposedly cause SISGSEGV was accessible etc.). So I've tried reproducing the problem. I've installed Authen::Krb5::Easy module. Somehow kinit() wasn't really working complaining that: could not get initial credentials: Key table entry not found I guess it's because the key in /etc/krb5.keytab isn't really for jack@SUSE.CZ which is what I've configured as ad_user and ad_domain for our ldap server. So I've obtained kerberos ticket manually, set script to use created cache file, and commented out kinit() call. But now I'm getting: First parameter was not a reference. It was type 5 Use of uninitialized value in numeric ne (!=) at ./bug-606584_co.pm line 55, <DATA> line 275. Usage: Authen::SASL::Cyrus::client_new(pkg, parent, service, host, ...) at /usr/lib/perl5/vendor_perl/5.10.0/Net/LDAP.pm line 389, <DATA> line 275. at ./bug-606584_co.pm line 57 Usage: Authen::SASL::Cyrus::client_new(pkg, parent, service, host, ...) at /usr/lib/perl5/vendor_perl/5.10.0/Net/LDAP.pm line 389, <DATA> line 275. So was I too naive in working around kerberos or is there some other problem with your script? It seems as if $sasl_conn = $sasl->client_new("ldap",$ad_server); failed without initializing sasl_conn. BTW: I've also dug in krb5 library and by any chance, don't you have self-compiled krb5 libraries? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c5 michel munnix <m.munnix@redcross.be> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|m.munnix@redcross.be | --- Comment #5 from michel munnix <m.munnix@redcross.be> 2010-06-05 16:52:41 UTC --- No, I use the distribution's krb5 libraries. I installed e2fsprogs-debugsource package to get the remove_error_table function source code from /usr/src/debug/e2fsprogs-1.41.11/lib/et/error_message.c I saw in the code that I could add debugging with: export COMERR_DEBUG=1 Here is the output of "perl co.pm" : access ad 10.48.3.11 add_error_table: krb5 (0x0x7f3b5e0cd540) add_error_table: kv5m (0x0x7f3b5e0cdd60) add_error_table: kdb5 (0x0x7f3b5e0cd3c0) add_error_table: asn1 (0x0x7f3b5e0cd320) add_error_table: k524 (0x0x7f3b5e0cdf80) add_error_table: prof (0x0x7f3b5e0d1160) add_error_table: ggss (0x0x7f3b5bcc17c0) add_error_table: ggss (0x0x7f3b5bcc17c0) remove_error_table FAILED: k5g (0x0x7f3b5bcc1a00) remove_error_table: ggss (0x0x7f3b5bcc17c0) Segmentation fault It seems to segfault when trying to remove a third "error_table" -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c6 Leonardo Chiquitto <lchiquitto@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mc@novell.com --- Comment #6 from Leonardo Chiquitto <lchiquitto@novell.com> 2010-06-07 03:06:58 UTC --- I'm investigating exactly the same segmentation fault in AutoFS (bug #608295). I did some tests here and identified that the problem doesn't exist on openSUSE 11.1, which uses Kerberos 1.6.3. openSUSE 11.2 (Kerberos 1.7.6) and current Factory (Kerberos 1.8.1) are affected. I also confirmed that updating Kerberos to version 1.7.6 on openSUSE 11.1 is enough to make the problem appear. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c7 Jan Kara <jack@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jack@novell.com AssignedTo|jack@novell.com |mc@novell.com --- Comment #7 from Jan Kara <jack@novell.com> 2010-06-07 08:26:06 UTC --- Thanks Michael and Leonardo for input. I think I now see where's the problem. Krb5 library seems to add ggss table twice. That causes that ggss table is referenced twice from the list of all error tables and after it is freed, we reference freed memory from a list causing SEGFAULT during the next removal. Reassigning to krb5 packager. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c8 Leonardo Chiquitto <lchiquitto@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |m.munnix@redcross.be --- Comment #8 from Leonardo Chiquitto <lchiquitto@novell.com> 2010-06-21 13:07:08 UTC --- Michel, please, can you test the Kerberos packages now available in this repository? http://download.opensuse.org/repositories/home:/leonardocf:/branches:/openSU... It includes a patch that hopefully addresses this problem. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c9 --- Comment #9 from Leonardo Chiquitto <lchiquitto@novell.com> 2010-06-21 17:45:15 UTC --- For reference, this bug was reported upstream in: http://mailman.mit.edu/pipermail/krbdev/2010-June/009099.html And the patch is now committed to Kerberos repository: http://anonsvn.mit.edu/viewvc/krb5/trunk/src/lib/gssapi/krb5/gssapi_krb5.c?r1=24050&r2=24139 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c10 michel munnix <m.munnix@redcross.be> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|m.munnix@redcross.be | --- Comment #10 from michel munnix <m.munnix@redcross.be> 2010-06-21 20:29:08 UTC --- yes, this fixes the problem for me. Thanks -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c11 --- Comment #11 from Leonardo Chiquitto <lchiquitto@novell.com> 2010-06-21 22:17:52 UTC --- Thanks for testing, Michel. I submitted the fix to Factory (request id 41854), hopefully it will be included in 11.3. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c12 Michael Calmer <mc@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |maintenance@opensuse.org --- Comment #12 from Michael Calmer <mc@novell.com> 2010-06-22 08:27:29 UTC --- Submitted to Factory I would suggest to put this together with the next security update for krb5 to openSUSE 11.2 . -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c13 Michael Calmer <mc@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bilkes@mail.nih.gov --- Comment #13 from Michael Calmer <mc@novell.com> 2010-06-22 08:29:21 UTC --- *** Bug 608295 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=608295 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c14 Marcus Meissner <meissner@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW CC| |meissner@novell.com InfoProvider|maintenance@opensuse.org | --- Comment #14 from Marcus Meissner <meissner@novell.com> 2010-06-22 08:33:19 UTC --- yes, please roll into the next security update (which will likely come ;) -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=606584 https://bugzilla.novell.com/show_bug.cgi?id=606584#c15 Michael Calmer <mc@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED Target Milestone|--- |Final --- Comment #15 from Michael Calmer <mc@novell.com> 2010-12-01 09:11:53 UTC --- Done. Submitted together with Bug 650650 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=606584 http://bugzilla.novell.com/show_bug.cgi?id=606584#c16 --- Comment #16 from Bernhard Wiedemann <bwiedemann@suse.com> --- This is an autogenerated message for OBS integration: This bug (606584) was mentioned in https://build.opensuse.org/request/show/41864 Factory / krb5 https://build.opensuse.org/request/show/54232 11.2:Test / krb5 -- You are receiving this mail because: You are on the CC list for the bug.
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