openldap-bugs January 2025

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33 discussions

[Issue 10299] New: slapacl -u segfaults on nonexistent user
by openldap-its＠openldap.org 11 Mar '25

11 Mar '25

https://bugs.openldap.org/show_bug.cgi?id=10299 Issue ID: 10299 Summary: slapacl -u segfaults on nonexistent user Product: OpenLDAP Version: 2.6.9 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: client tools Assignee: bugs(a)openldap.org Reporter: ratness(a)gmail.com Target Milestone: --- Created attachment 1048 --> https://bugs.openldap.org/attachment.cgi?id=1048&action=edit config.ldif 2.6.9, symas-packaged RPMs, Rocky 9. In slapacl, a rootDN user is, as you'd expect, allowed to do anything: # /opt/symas/sbin/slapacl -D 'cn=Manager,dc=example,dc=com' -u -b 'uid=fakeuser,ou=users,dc=example,dc=com' entry/write authcDN: "cn=manager,dc=example,dc=com" write access to entry: ALLOWED But, a user given full-manage rights, segfaults: # /opt/symas/sbin/slapacl -D 'uid=direct,ou=users,dc=example,dc=com' -u -b 'uid=fakeuser,ou=users,dc=example,dc=com' entry/write authcDN: "uid=direct,ou=users,dc=example,dc=com" Segmentation fault (core dumped) Traceback: Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7135888 in mdb_txn_begin (env=0x0, parent=parent@entry=0x0, flags=flags@entry=131072, ret=ret@entry=0x5555557f4940) at ./../../../libraries/liblmdb/mdb.c:2893 2893 flags |= env->me_flags & MDB_WRITEMAP; Missing separate debuginfos, use: dnf debuginfo-install glibc-2.34-60.el9.x86_64 libevent-2.1.12-6.el9.x86_64 sqlite-libs-3.34.1-6.el9_1.x86_64 (gdb) bt #0 0x00007ffff7135888 in mdb_txn_begin (env=0x0, parent=parent@entry=0x0, flags=flags@entry=131072, ret=ret@entry=0x5555557f4940) at ./../../../libraries/liblmdb/mdb.c:2893 #1 0x00007ffff71361a1 in mdb_opinfo_get (op=op@entry=0x7fffffffdce0, mdb=mdb@entry=0x7ffff7048010, rdonly=rdonly@entry=1, moip=moip@entry=0x7fffffffc410) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/back-mdb/id2entry.c:793 #2 0x00007ffff7136459 in mdb_entry_get (op=0x7fffffffdce0, ndn=0x7fffffffc640, oc=0x5555557a4360, at=0x5555557c3560, rw=0, ent=0x7fffffffc4c8) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/back-mdb/id2entry.c:620 #3 0x00005555555a77a0 in be_entry_get_rw (e=0x7fffffffc4c8, rw=0, at=0x5555557c3560, oc=0x5555557a4360, ndn=0x7fffffffc640, op=0x7fffffffdce0) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/backend.c:1438 #4 fe_acl_group (op=0x7fffffffdce0, target=<optimized out>, gr_ndn=0x7fffffffc640, op_ndn=0x7fffffffde10, group_oc=0x5555557a4360, group_at=0x5555557c3560) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/backend.c:1494 #5 0x000055555559ec5c in backend_group (op=0x7fffffffdce0, target=<optimized out>, gr_ndn=<optimized out>, op_ndn=<optimized out>, group_oc=<optimized out>, group_at=<optimized out>) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/backend.c:1690 #6 0x00005555555bfbc2 in slap_acl_mask (access=ACL_WRITE, state=0x7fffffffc660, count=1, matches=0x7fffffffcab0, val=<optimized out>, desc=<optimized out>, e=0x7fffffffd910, op=0x7fffffffdce0, mask=<synthetic pointer>, prev=0x0, a=0x5555557c3970) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/acl.c:1643 #7 slap_access_allowed (op=op@entry=0x7fffffffdce0, e=e@entry=0x7fffffffd910, desc=<optimized out>, val=<optimized out>, access=<optimized out>, state=<optimized out>, maskp=<optimized out>) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/acl.c:288 #8 0x00005555555c1e2e in fe_access_allowed (op=0x7fffffffdce0, e=0x7fffffffd910, desc=<optimized out>, val=<optimized out>, access=<optimized out>, state=<optimized out>, maskp=0x7fffffffd828) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/acl.c:352 #9 0x00005555555b7c74 in access_allowed_mask (op=0x7fffffffdce0, e=0x7fffffffd910, desc=0x55555573d540, val=<optimized out>, access=ACL_WRITE, state=0x0, maskp=0x7fffffffd900) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/acl.c:456 #10 0x0000555555620182 in slapacl (argc=<optimized out>, argv=0x7fffffffe398) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/slapacl.c:362 #11 0x000055555557658f in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/symas-openldap-2.6.9-1.el9.x86_64/servers/slapd/main.c:540 I could understand it if it was a case of "trying to verify cn/write and not knowing if the user was objectClass=person" but for entry/write I don't see any reason these should be different. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10274] New: Replication issue on MMR configuration
by openldap-its＠openldap.org 07 Mar '25

07 Mar '25

https://bugs.openldap.org/show_bug.cgi?id=10274 Issue ID: 10274 Summary: Replication issue on MMR configuration Product: OpenLDAP Version: 2.5.14 Hardware: All OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: falgon.comp(a)gmail.com Target Milestone: --- Created attachment 1036 --> https://bugs.openldap.org/attachment.cgi?id=1036&action=edit In this attachment you will find 2 openldap configurations for 2 instances + slamd conf exemple + 5 screenshots to show the issue and one text file to explain what you see Hello we are openning this issue further to the initial post in technical : https://lists.openldap.org/hyperkitty/list/openldap-technical@openldap.org/… Issue : We are working on a project and we've come across an issue with the replication after performance testing : *Configuration :* RHEL 8.6 OpenLDAP 2.5.14 *MMR-delta *configuration on multiple servers attached 300,000 users configured and used for tests *olcLastBind: TRUE* Use of SLAMD (performance shooting) *Problem description:* We are currently running performance and resilience tests on our infrastructure using the SLAMD tool configured to perform BINDs and MODs on a defined range of accounts. We use a load balancer (VIP) to poll all of our servers equally. (but it is possible to do performance tests directly on each of the directories) With our current infrastructure we're able to perform approximately 300 MOD/BIND/s. Beyond that, we start to generate delays and can randomly come across one issue. However, when we run performance tests that exceed our write capacity, our replication between servers can randomly create an incident with directories being unable to catch up with their replication delay. The directories update their contextCSNs, but extremely slowly (like freezing). From then on, it's impossible for the directories to catch again. (even with no incoming traffic) A restart of the instance is required to perform a full refresh and solve the incident. We have enabled synchronization logs and have no error or refresh logs to indicate a problem ( we can provide you with logs if necessary). We suspect a write collision or a replication conflict but this is never write in our sync logs. We've run a lot of tests. For example, when we run a performance test on a single live server, we don't reproduce the problem. Anothers examples: if we define different accounts ranges for each server with SALMD, we don't reproduce the problem either. If we use only one account for the range, we don't reproduce the problem either. ______________________________________________________________________ I have add some screenshots on attachement to show you the issue and all the explanations. ______________________________________________________________________ *Symptoms :* One or more directories can no longer be replicated normally after performance testing ends. No apparent error logs. Need a restart of instances to solve the problem. *How to reproduce the problem:* Have at least two servers in MMR mode Set LastBind to TRUE Perform a SLAMD shot from a LoadBalancer in bandwidth mode OR start multiple SLAMD test on same time for each server with the same account range. Exceed the maximum write capacity of the servers. *SLAMD configuration :* authrate.sh --hostname ${HOSTNAME} --port ${PORTSSL} \ --useSSL --trustStorePath ${CACERTJKS} \ --trustStorePassword ${CACERTJKSPW} --bindDN "${BINDDN}" \ --bindPassword ${BINDPW} --baseDN "${BASEDN}" \ --filter "(uid=[${RANGE}])" --credentials ${USERPW} \ --warmUpIntervals ${WARMUP} \ --numThreads ${NTHREADS} ${ARGS} -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10266] New: Adopt broader RFC4511 NoD interpretation on lloadd's client side
by openldap-its＠openldap.org 04 Mar '25

04 Mar '25

https://bugs.openldap.org/show_bug.cgi?id=10266 Issue ID: 10266 Summary: Adopt broader RFC4511 NoD interpretation on lloadd's client side Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: lloadd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- Server side, lloadd has long implemented a broad interpretation of NoD unsolicited response handling: when the message is issued, no new requests are accepted on the session however the client and server are both free to keep the session open if there are any operations that have not resolved yet. The server is still expected to close the connection as soon as no operations are still pending. This seems to interoperate with known clients. Those that want to will close the session immediately, unaware of this possibility, those that also want to interpret RFC 4511 this way can choose to wait for existing operations to resolve. This ticket is to track the lloadd's implementation of the client side of this - when receiving a NoD message, we don't close the connection immediately+unconditionally either but are willing to wait. Related functionality: - if connection was a bind connection processing a multi-stage SASL bind, the bind should fail if/when the client attempts to progress it - clients assigned to this connection through coherence at least 'connection' are also marked closing -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10024] New: MDB_PREVSNAPSHOT broken
by openldap-its＠openldap.org 21 Feb '25

21 Feb '25

https://bugs.openldap.org/show_bug.cgi?id=10024 Issue ID: 10024 Summary: MDB_PREVSNAPSHOT broken Product: LMDB Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: liblmdb Assignee: bugs(a)openldap.org Reporter: markus(a)objectbox.io Target Milestone: --- It seems that the patch #9496 had a negative side effect on MDB_PREVSNAPSHOT. In certain cases, when opening the DB using MDB_PREVSNAPSHOT, the previous (2nd latest) commit is not selected. Instead, reads show that the latest commit was selected voiding the effect of MDB_PREVSNAPSHOT. I observed this in our test cases a while back. Today, I was finally able to reproduce it and debug into it. When creating the transaction to read the data, I debugged into mdb_txn_renew0. Here, ti (MDB_txninfo; env->me_txns) was non-NULL. However, ti->mti_txnid was 0 (!) and thus txn->mt_txnid was set to 0. That's the reason for always selecting the first (index 0) meta page inside mdb_txn_renew0: meta = env->me_metas[txn->mt_txnid & 1]; This line occurs twice (once for read txn and once for write txn; it affects both txn types). Thus, the chances of MDB_PREVSNAPSHOT selecting the correct meta page is 50-50. It's only correct if the first meta page (index 0) is the older one. I believe that this is related to #9496 because the patch, that was provided there, removed the initialization of "env->me_txns->mti_txnid" in mdb_env_open2. This would explain why txn->mt_txnid inside mdb_txn_renew0 was set to 0. I can confirm that adding back the following two lines back in fixes MDB_PREVSNAPSHOT: if (env->me_txns) env->me_txns->mti_txnid = meta.mm_txnid; The said patch including the removal of these two lines was applied in the commit(s) "ITS#9496 fix mdb_env_open bug from #8704" (Howard Chu on 09.04.21). I hope this information is useful to find a suitable fix. Please let me know if you have questions. Also, I'd be happy to help confirming a potential fix with our test suite. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10265] New: Make it possible to change olcBkLloadListen at runtime
by openldap-its＠openldap.org 19 Feb '25

19 Feb '25

https://bugs.openldap.org/show_bug.cgi?id=10265 Issue ID: 10265 Summary: Make it possible to change olcBkLloadListen at runtime Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: lloadd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- Currently, olcBkLloadListen changes only take effect on lloadd startup: - an added olcBkLloadListen should come online at the end of the modify operation - at the end of the modify operation a removed olcBkLloadListen will stop listening on the sockets associated with it, clients that connected over these are marked CLOSING - to facilitate replacing a value where URIs resolved sockets overlap, olcBkLloadListen should become a MAY in olcBkLloadConfig objectclass Lloadd's startup was modelled upon slapd's, but the requirements have changed considerably when it was turned into a module. Sockets are acquired at module configuration time, which is much later than standalone/slapd's own startup and so the way the URLs are handled also needs to be reworked. This will resolve other related issues. -- You are receiving this mail because: You are on the CC list for the issue.

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[Bug 9186] New: RFE: More metrics in cn=monitor
by openldap-its＠openldap.org 19 Feb '25

19 Feb '25

https://bugs.openldap.org/show_bug.cgi?id=9186 Bug ID: 9186 Summary: RFE: More metrics in cn=monitor Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: michael(a)stroeder.com Target Milestone: --- Currently I'm grepping metrics from syslog with mtail: https://gitlab.com/ae-dir/ansible-ae-dir-server/-/blob/master/templates/mta… With a new binary logging this is not possible anymore. Thus it would be nice if cn=monitor provides more metrics. 1. Overall connection count per listener starting at 0 when started. This would be a simple counter added to: entries cn=Listener 0,cn=Listeners,cn=Monitor 2. Counter for the various "deferring" messages separated by the reason for deferring. 3. Counters for all possible result codes. In my mtail program I also label it with the result type. -- You are receiving this mail because: You are on the CC list for the bug.

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[Issue 10279] New: add debug notice also to client tools
by openldap-its＠openldap.org 19 Feb '25

19 Feb '25

https://bugs.openldap.org/show_bug.cgi?id=10279 Issue ID: 10279 Summary: add debug notice also to client tools Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: client tools Assignee: bugs(a)openldap.org Reporter: rossi.f(a)inwind.it Target Milestone: --- Created attachment 1040 --> https://bugs.openldap.org/attachment.cgi?id=1040&action=edit openldap-2.6.4-debug-notice.patch The command line -d option, when used for debugging, does nothing if openldap was not compiled byth --enable-debug option. For the server part there is a notice to the user regarding this, I propose to add the same also to client tools. Here is attached the simple patch. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10302] New: Double free of idcursor
by openldap-its＠openldap.org 19 Feb '25

19 Feb '25

https://bugs.openldap.org/show_bug.cgi?id=10302 Issue ID: 10302 Summary: Double free of idcursor Product: OpenLDAP Version: 2.6.6 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: simon.rupf(a)lzlabs.com Target Milestone: --- Created attachment 1050 --> https://bugs.openldap.org/attachment.cgi?id=1050&action=edit proposed patch, which was created from current master, but also applies to 2.6.6 While switching from Oracle Linux (a RHEL clone) 8 to 9 one of our larger LDAP samples started causing a double free error at the end of the slapadd run. While I can't share the LDIF in question and it didn't consistently cause the issue, only every 5-6 times it ran, I could ran gdb and valgrind on it and suggest the attached patch that resolves that error to re-occur. I validated the patch still applies to the current master branch of openldap, as well as to 2.6.6 on EL9 where we encountered this. The error originally observed was this (commands being run as ldap user): [...] rm -r /var/lib/ldap mkdir /var/lib/ldap slapadd -l /tmp/lz_vault_convert_add.ldif -q -w -n 2 PROXIED attributeDescription "LZVAULTPROFILECOUNT" inserted. PROXIED attributeDescription "LZVAULTGLOBALPROFILECOUNT" inserted. -#################### 100.00% eta none elapsed 03s spd 4.2 M/s Closing DB...double free or corruption (!prev) Under valgrind, the following trace could be observed: valgrind --vgdb=full --leak-check=full --show-leak-kinds=all --track-origins=yes slapadd -l /tmp/lz_vault_convert_add.ldif -q -w -n 2 ==502== Memcheck, a memory error detector ==502== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al. ==502== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info ==502== Command: slapadd -l /tmp/lz_vault_convert_add.ldif -q -w -n 2 ==502== PROXIED attributeDescription "LZVAULTPROFILECOUNT" inserted. PROXIED attributeDescription "LZVAULTGLOBALPROFILECOUNT" inserted. ==502== Invalid read of size 8 ==502== at 0x1E65A9: mdb_cursor_close (mdb.c:7764) ==502== by 0x1F71B8: UnknownInlinedFun (tools.c:202) ==502== by 0x1F71B8: mdb_tool_entry_close (tools.c:152) ==502== by 0x1D8291: slapadd (slapadd.c:511) ==502== by 0x1348C6: main (main.c:540) ==502== Address 0x188c8af8 is 8 bytes inside a block of size 392 free'd ==502== at 0x4847B4C: free (vg_replace_malloc.c:989) ==502== by 0x22CEFE: mdb_cursors_close.isra.0 (mdb.c:2638) ==502== by 0x1EBAAE: mdb_txn_commit (mdb.c:3640) ==502== by 0x1F75E2: mdb_tool_entry_modify (tools.c:1066) ==502== by 0x1D9AF9: slap_tool_update_ctxcsn.part.0 (slapcommon.c:1069) ==502== by 0x1D8440: UnknownInlinedFun (slapcommon.c:962) ==502== by 0x1D8440: slapadd (slapadd.c:502) ==502== by 0x1348C6: main (main.c:540) ==502== Block was alloc'd at ==502== at 0x484482F: malloc (vg_replace_malloc.c:446) ==502== by 0x1E8699: mdb_cursor_open (mdb.c:7690) ==502== by 0x1F8C45: mdb_tool_entry_put (tools.c:707) ==502== by 0x1D8150: slapadd (slapadd.c:453) ==502== by 0x1348C6: main (main.c:540) [...] Please advise if I can provide any further diagnostics, while I can still relatively easily reproduce the issue. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10290] New: Combination of syncrepl+rwm+syncprov frees the wrong modlist
by openldap-its＠openldap.org 19 Feb '25

19 Feb '25

https://bugs.openldap.org/show_bug.cgi?id=10290 Issue ID: 10290 Summary: Combination of syncrepl+rwm+syncprov frees the wrong modlist Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- An MPR setup with rwm enabled (regardless of configuration it seems) will crash with the provided modlist being freed twice. This is the sequence of events of what is stored in op->orm_modlist, allocated and freed by whom, replacing the actual pointers to make it easier to track: syncrepl_message_to_op: preparing a modify with 0xoriginal syncrepl_op_modify: old modlist 0xoriginal replacing with 0xsyncrepl_op_modify rwm_op_modify: old modlist 0xsyncrepl_op_modify replacing with 0xrwm_op_modify <modify happens> syncrepl_modify_cb: freeing 0xsyncrepl_op_modify, replacing with 0xoriginal (forgetting 0xrwm_op_modify) rwm_op_rollback: freeing 0xoriginal replacing with 0xsyncrepl_op_modify syncrepl_message_to_op: went in with 0xoriginal, got 0xsyncrepl_op_modify back syncrepl_message_to_op: freeing 0xsyncrepl_op_modify Not sure who is at fault: syncrepl_modify_cb is the one freeing the wrong modlist, but then if backover were to work with an actual "stack", running response callbacks in the opposite order from the request, things would have been ok too. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10229] New: ldap_result, when invoked with MSG_RECEIVED and a timeout value set to 0 (polling), does not return all available messages until it is called again
by openldap-its＠openldap.org 19 Feb '25

19 Feb '25

https://bugs.openldap.org/show_bug.cgi?id=10229 Issue ID: 10229 Summary: ldap_result, when invoked with MSG_RECEIVED and a timeout value set to 0 (polling), does not return all available messages until it is called again Product: OpenLDAP Version: 2.6.8 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: nivanova(a)symas.com Target Milestone: --- The issue is noticeable when ldap_result is used by the proxy back-ends. It has not affected back-meta behavior, because when a first call is unsuccessful, it retries with a small timeout. back-asyncmeta will also usually call it twice on the same connection from different threads, although this is not a desired behavior. -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs January 2025