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Bug 1254344

Summary:	Server crashes in ACL_LasFindFlush during shutdown if ACIs contain IP addresss restrictions
Product:	Red Hat Enterprise Linux 7	Reporter:	Noriko Hosoi <nhosoi>
Component:	389-ds-base	Assignee:	Noriko Hosoi <nhosoi>
Status:	CLOSED ERRATA	QA Contact:	Viktor Ashirov <vashirov>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.0	CC:	mreynolds, nkinder, rmeggins
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	389-ds-base-1.3.4.0-12.el7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-11-19 11:44:05 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:

Description Noriko Hosoi 2015-08-17 19:11:02 UTC

389ds compiled from git for the current branch 1.3.3 (so it's somewhere between 1.3.3.12 and future 1.3.3.13) crashes when shutting down. The crash happens only if some modifications were made to the server since its start. No replication. Reproducible - each time.

OS - CentOS7 x86_64 with all the latest patches.

Jul 28 21:09:05 ldap-edev systemd: Stopping 389 Directory Server edev....
Jul 28 21:09:05 ldap-edev kernel: ns-slapd[10215]: segfault at 40 ip 00007ff7f8fbac14 sp 00007fff3b6ff130 error 4 in libns-dshttpd.so.0.0.0[7ff7f8f98000+45000]
Jul 28 21:09:05 ldap-edev systemd: dirsrv: main process exited, code=dumped, status=11/SEGV
Jul 28 21:09:05 ldap-edev systemd: Unit dirsrv entered failed state.

Typical error messages in system logs (one per server restart or stop):

Jul 28 14:22:43 ldap-edev kernel: ns-slapd[5570]: segfault at 40 ip 00007f5027956b13 sp 00007ffe8fec7fb0 error 4 in libns-dshttpd.so.0.0.0[7f5027938000+3d000]
Jul 28 19:39:32 ldap-edev kernel: ns-slapd[5932]: segfault at 40 ip 00007f6c9714fb13 sp 00007ffc73cf2c00 error 4 in libns-dshttpd.so.0.0.0[7f6c97131000+3d000]
Jul 28 19:50:10 ldap-edev kernel: ns-slapd[7100]: segfault at 40 ip 00007fdce6975b13 sp 00007ffc78505400 error 4 in libns-dshttpd.so.0.0.0[7fdce6957000+3d000]
Jul 28 19:52:18 ldap-edev kernel: ns-slapd[7231]: segfault at 40 ip 00007fb2dae4cb13 sp 00007ffc1948ec20 error 4 in libns-dshttpd.so.0.0.0 (deleted)[7fb2dae2e000+3d000]
Jul 28 20:42:01 ldap-edev kernel: ns-slapd[8283]: segfault at 40 ip 00007f68f372ec14 sp 00007ffc1daa46d0 error 4 in libns-dshttpd.so.0.0.0[7f68f370c000+45000]
Jul 28 20:45:56 ldap-edev kernel: ns-slapd[8805]: segfault at 40 ip 00007fad8371ec14 sp 00007fff6914abe0 error 4 in libns-dshttpd.so.0.0.0[7fad836fc000+45000]
Jul 28 20:49:05 ldap-edev kernel: ns-slapd[8921]: segfault at 40 ip 00007f841dd22c14 sp 00007ffc14097150 error 4 in libns-dshttpd.so.0.0.0[7f841dd00000+45000]
Jul 28 20:51:16 ldap-edev kernel: ns-slapd[9003]: segfault at 40 ip 00007f1036075c14 sp 00007ffe27cef430 error 4 in libns-dshttpd.so.0.0.0[7f1036053000+45000]

The debug build shows that it happens in the file  {{{ lib/libaccess/register.cpp:276 }}}, the corresponding line is:
 *flush_funcp = (LASFlushFunc_t)PR_HashTableLookup(ACLLasFlushHash, attr_name);

The gdb output is attached.

The previous server branch (in particular, 1.3.2.27) does not crash after importing the same ldif.

Comment 1 mreynolds 2015-08-17 19:23:09 UTC

Fix upstream.

Verification Script:

ds/dirsrvtests/ticket/ticket48233.py

Comment 3 Viktor Ashirov 2015-08-19 08:27:32 UTC

Build tested: 389-ds-base-1.3.4.0-12.el7.x86_64.rpm

============================================================================ test session starts =============================================================================
platform linux2 -- Python 2.7.5 -- py-1.4.30 -- pytest-2.7.2 -- /usr/bin/python
rootdir: /tmp/test/ds/dirsrvtests/tickets, inifile: 
collected 1 items 

../tmp/test/ds/dirsrvtests/tickets/ticket48233_test.py::test_ticket48233 PASSED

========================================================================= 1 passed in 40.60 seconds ==========================================================================

Marking as VERIFIED.

Comment 4 errata-xmlrpc 2015-11-19 11:44:05 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2351.html