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Bug 1252570
| Summary: | glibc-2.21.90-21.fc23 segfaults in hesiod getgrouplist() | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Nalin Dahyabhai <nalin> | ||||
| Component: | glibc | Assignee: | Carlos O'Donell <codonell> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 23 | CC: | arjun.is, codonell, fweimer, jakub, law, mfabian, mnewsome, pfrankli | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | glibc-2.22-8.fc23, glibc-2.22.90-35.fc24 glibc-2.22-9.fc23 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2016-02-17 14:20:37 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 1305132 | ||||||
| Attachments: |
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Caused by upstream commit 2212c1420c92a33b0e0bd9a34938c9814a56c0f7. Bug reported upstream. There are various ways to fix this, but which approach is best is unclear. Reproducer without changing /etc: cat > /etc/hesiod.conf << EOF lhs=.hs rhs=.devel.redhat.com EOF HESIOD_CONFIG=hesiod.conf getent -s hesiod group 0 0 I'm reverting the upstream commit which introduced this bug. glibc-2.22-9.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-0f9e9a34ce glibc-2.22-9.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-0f9e9a34ce glibc-2.22-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report. Due to this change, a glibc update to the fixed versions *without* a reboot (or process restart) may cause name resolution failures. |
Created attachment 1061638 [details] gdb "where full" results, plus a couple of variables Description of problem: With a working hesiod configuration, and hesiod enabled for group resolution, multiple applications are crashing while initializing a supplemental groups list. Version-Release number of selected component (if applicable): glibc-2.21.90-21.fc23.x86_64 coreutils-8.24-2.fc23.x86_64 used to reproduce the bug How reproducible: Always Steps to Reproduce: 1. cat > /etc/hesiod.conf << EOF lhs=.hs rhs=.devel.redhat.com EOF 2. Add "hesiod" as a source for "group" information in /etc/nsswitch.conf. Mine reads "files hesiod". 3. Run "groups nalin" or similar. Actual results: "groups" segfaults. I'll attach the gdb backtrace. Expected results: The expected groups list. Additional info: