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Description of problem: sssd_nss is segfaulting with certain netgroups lookups when using sudo. Version-Release number of selected component (if applicable): sssd-1.5.1-5.el6.x86_64 libdhash-0.4.2-6.el6.x86_64 How reproducible: always? Steps to Reproduce: unknown trigger # time sudo -l Matching Defaults entries for root on this host: always_set_home, env_reset, listpw=always, logfile=/var/log/sudo.log, logfile=/var/adm/sudo.log, always_set_home Runas and Command-specific defaults for root: User root may run the following commands on this host: (ALL) ALL (root) (ALL) ALL real 0m16.969s user 0m0.016s sys 0m0.116s Actual results: Syslog message: KERN.INFO: Mar 3 12:21:25 <host> kernel: sssd_nss[3002]: segfault at 0 ip 00000033bea00a5c sp 00007fff1f42e738 error 4 in libdhash.so.1.0.0[33bea00000+3000] Expected results: no segfault and sudo return in 1~2s
Tracked upstream by https://fedorahosted.org/sssd/ticket/817
In 1.5.1-10: "getent -s sss netgroup non-existant-group" has sssd_nss crashing at the end of cache lifetime. In 1.5.1-32: "getent -s sss netgroup non-existant-group" doesn't crash sssd at the end of cache lifetime anymore. Verified in version: # rpm -qi sssd | head Name : sssd Relocations: (not relocatable) Version : 1.5.1 Vendor: Red Hat, Inc. Release : 32.el6 Build Date: Fri 29 Apr 2011 09:24:02 PM IST Install Date: Fri 29 Apr 2011 11:49:07 PM IST Build Host: hs20-bc2-4.build.redhat.com Group : Applications/System Source RPM: sssd-1.5.1-32.el6.src.rpm Size : 3464087 License: GPLv3+ Signature : (none) Packager : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla> URL : http://fedorahosted.org/sssd/ Summary : System Security Services Daemon
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0560.html