Bug 81438
| Summary: | nss_ldap segfaults on big groups | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Panu Matilainen <pmatilai> |
| Component: | nss_ldap | Assignee: | Nalin Dahyabhai <nalin> |
| Status: | CLOSED NEXTRELEASE | QA Contact: | Jay Turner <jturner> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 9 | CC: | nicku, srevivo |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2003-07-31 14:40:42 UTC | Type: | --- |
| 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: | 79579, 100644 | ||
Forgot to mention: this is using RFC2307bis schema. If compiled without support for that nss_ldap doesn't crash but then it doesn't provide much info either :) This might very well be fixed in nss_ldap-203: http://bugzilla.padl.com/show_bug.cgi?id=121 Unfortunately I'm not able to actually test it currently as someone has pulled the plug on the LDAP-server :( Confirmed now: after updating the current rawhide nss_ldap package to 203 it no long segfaults. Severn has nss_ldap-207 and as mentioned earlier this was fixed in 203 already - closing... |
From Bugzilla Helper: User-Agent: Mozilla/5.0 Galeon/1.2.7 (X11; Linux i686; U;) Gecko/20021216 Description of problem: nss_ldap segfaults in presence of big(gish) groups on the ldap server. I'm not sure what's the actual breakup point is, but for nss_ldap-198 and 202 its 100% reproducible here with a group of 4793 users. Older versions (tested on RH7.2) segfault much earlier, for nss_ldap-189-4 the breakup point seems to be 10 users in a group. I can "fix" it (tested on nss_ldap 198) by causing a memory leak by commenting out "ldap_value_free (vals);" on line 158 of ldap-grp.c, after doing that I can no more make it crash. Also it doesn't appear to be a null pointer since changing it to if (vals != NULL) ldap_value_free (vals); doesn't help either. Oh and that doesn't help on nss_ldap-189.. Would be nice to have it fixed not just for the next release but for older versions too... Version-Release number of selected component (if applicable): 189, 198, 202 at least (haven't tried earlier versions) How reproducible: Always Steps to Reproduce: 1. create a group of at least (?) 4793 users on ldap server 2. configure client to fetch user information from ldap 3. run 'id username' Actual Results: [pmatilai@es-adsl-soho-30-186 pmatilai]$ id pmatilai Segmentation fault Expected Results: I should print out the list of groups.. Additional info: