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Ticket was cloned from Red Hat Bugzilla (product Red Hat Enterprise Linux 7): Bug 1205852
Please note that this Bug is private and may not be accessible as it contains confidential Red Hat customer information.
Created attachment 1006415 crask.tgz Description of problem: sssd_be segfaulting with : Reading symbols from /usr/libexec/sssd/sssd_be...Reading symbols from /usr/lib/debug/usr/libexec/sssd/sssd_be.debug...done. done. [New LWP 2487] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/usr/libexec/sssd/sssd_be --domain na.lzb.hq --uid 0 --gid 0 --debug-to-files'. Program terminated with signal 11, Segmentation fault. #0 ad_gpo_filter_gpos_by_dacl (_num_dacl_filtered_gpos=0x7f88e1de6810, _dacl_filtered_gpos=0x7f88e1de6808, num_candidate_gpos=<optimized out>, candidate_gpos=<optimized out>, idmap_ctx=<optimized out>, domain=<optimized out>, user=<optimized out>, mem_ctx=0x7f88e1de67a0) at src/providers/ad/ad_gpo.c:843 843 dacl = candidate_gpo->gpo_sd->dacl; (gdb) bt #0 ad_gpo_filter_gpos_by_dacl (_num_dacl_filtered_gpos=0x7f88e1de6810, _dacl_filtered_gpos=0x7f88e1de6808, num_candidate_gpos=<optimized out>, candidate_gpos=<optimized out>, idmap_ctx=<optimized out>, domain=<optimized out>, user=<optimized out>, mem_ctx=0x7f88e1de67a0) at src/providers/ad/ad_gpo.c:843 #1 ad_gpo_process_gpo_done (subreq=0x0) at src/providers/ad/ad_gpo.c:1939 #2 0x00007f88d1ab6693 in ad_gpo_get_gpo_attrs_done (subreq=0x0) at src/providers/ad/ad_gpo.c:3619 #3 0x00007f88df47e0c2 in tevent_common_add_fd (ev=<optimized out>, mem_ctx=<optimized out>, fd=-604581600, flags=<optimized out>, handler=<optimized out>, private_data=<optimized out>, handler_name=0x7f88e1de6cc0 "\260\340\022\342\210\177", location=0x7f88e1dbda80 "s\f\025\350\210\177") at ../tevent_fd.c:74 #4 0x0000000000000000 in ?? () Version-Release number of selected component (if applicable): sssd-1.12.2-58.el7.x86_64 How reproducible: ssh to server Steps to Reproduce: 1. 2. 3. Actual results: sssd_be segfaults Expected results: sssd_be should not segfault Additional info:
Linked to Bugzilla bug: https://bugzilla.redhat.com/show_bug.cgi?id=1212387 (Red Hat Enterprise Linux 6)
rhbz: [https://bugzilla.redhat.com/show_bug.cgi?id=1205852 1205852] => [https://bugzilla.redhat.com/show_bug.cgi?id=1205852 1205852], [https://bugzilla.redhat.com/show_bug.cgi?id=1212387 1212387]
I have figured out how to reproduce the bug.
Results: When trying to process the site-level GPOs, SSSD encounters a referral to the parent domain controller. SSSD doesn't follow this referral and as a result it later crashes because the GPO object in SSSD has not been fully initialized.
blockedby: => blocking: => changelog: => coverity: => design: => design_review: => 0 feature_milestone: => fedora_test_page: => mark: no => 0 review: True => 0 selected: => testsupdated: => 0
Fields changed
milestone: NEEDS_TRIAGE => SSSD 1.12.5
resolution: => fixed status: new => closed
Metadata Update from @lslebodn: - Issue set to the milestone: SSSD 1.12.5
SSSD is moving from Pagure to Github. This means that new issues and pull requests will be accepted only in SSSD's github repository.
This issue has been cloned to Github and is available here: - https://github.com/SSSD/sssd/issues/3670
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