openldap-bugs July 2025

openldap-bugs@openldap.org

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[Issue 10304] New: Unable to remove item from directory as part of transaction if it is the last item in that directory
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10304 Issue ID: 10304 Summary: Unable to remove item from directory as part of transaction if it is the last item in that directory Product: OpenLDAP Version: 2.5.13 Hardware: All OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: sophie.elliott(a)arcticlake.com Target Milestone: --- I am running my ldap server on Debian 11.3, with the mdb backend, using the backported openldap version 2.5.13. I am not 100% certain if this is an issue with OpenLDAP or liblmdb, but I have been running tests in the repo and it looks like the liblmdb tests work fine, so I think it's with OpenLDAP itself. I have been performing a transaction, and deleting entries from a directory during this transaction. This works fine if the item that I am deleting isn't the last entry in its directory, but when it is I get a MDB_NOTFOUND error on the commit transaction call and the delete doesn't go through. Here is an excerpt of the logs when this happens: ``` 67a64334.14e1fc32 0x766ad2a00700 => index_entry_del( 108, "accessGroupID=f23de82f-3a1c-4f88-86bb-bb07f9a0992d,o=[COMPANY],ou=accessGroups,dc=local,dc=[COMPANY],dc=com" ) 67a64334.14e21912 0x766ad2a00700 mdb_idl_delete_keys: 6c [62d34624] 67a64334.14e22812 0x766ad2a00700 <= index_entry_del( 108, "accessGroupID=f23de82f-3a1c-4f88-86bb-bb07f9a0992d,o=[COMPANY],ou=accessGroups,dc=local,dc=[COMPANY],dc=com" ) success 67a64334.14e23a91 0x766ad2a00700 mdb_delete: txn_commit failed: MDB_NOTFOUND: No matching key/data pair found (-30798) ``` Please let me know if I should submit this issue elsewhere, or if this is something that has already been fixed in a more recent version. I'm also happy to provide more details if necessary. Thank you! -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10359] New: delta-MPR uses logbase for more than it documents
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10359 Issue ID: 10359 Summary: delta-MPR uses logbase for more than it documents Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- syncrepl logbase=<dn> is used not just for a syncrepl session (documented) but also for internal searches when it comes to delta-MPR conflict resolution. This is not documented so an admin doesn't know that the local accesslog DB needs to exist and have the same suffix. Either the documentation needs updating or a new configuration item needs to be added to allow an accesslog DB with a different suffix locally. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10367] New: Article for 'Asynchronous Metadirectory backend' seems to be typo.
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10367 Issue ID: 10367 Summary: Article for 'Asynchronous Metadirectory backend' seems to be typo. Product: website Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: website Assignee: bugs(a)openldap.org Reporter: truth_jp_4133(a)yahoo.co.jp Target Milestone: --- In the table of '6.2.2.1. backend <type>'section on this page(https://www.openldap.org/doc/admin26/slapdconfig.html), the description about asyncmet is 'a Asynchronous Metadirectory backend', but I think that this is 'an Asynchronous Metadirectory backend'. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10376] New: 'this' seems to be duplicated in '8.4.5. Managing access with Groups' section
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10376 Issue ID: 10376 Summary: 'this' seems to be duplicated in '8.4.5. Managing access with Groups' section Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: truth_jp_4133(a)yahoo.co.jp Target Milestone: --- At the sentense 'One can then grant access to the members of this this group by adding appropriate by group clause to an access directive in slapd.conf(5).' in '8.4.5. Managing access with Groups' section, 'this' seems to be duplicated. https://www.openldap.org/doc/admin26/access-control.html -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10369] New: Error when trying to modify the olcDbCheckpoint attr: 'olcMultiProvider' cannot have multiple values
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10369 Issue ID: 10369 Summary: Error when trying to modify the olcDbCheckpoint attr: 'olcMultiProvider' cannot have multiple values Product: OpenLDAP Version: 2.6.10 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: elecharny(a)apache.org Target Milestone: --- When trying to modify the olcDbCheckpoint, I get an error on the olcMultiProvider attribute Here are the logs I get: juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=3 MOD dn="olcDatabase={3}mdb,cn=config" juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=3 MOD attr=olcDbCheckpoint juil. 17 13:03:32 openldap1 slapd[17224]: slap_get_csn: conn=1012 op=3 generated new csn=20250717130332.671384Z#000000#00b#000000 manage=1 juil. 17 13:03:32 openldap1 slapd[17224]: slap_queue_csn: queueing 0x7f02cc104b80 20250717130332.671384Z#000000#00b#000000 juil. 17 13:03:32 openldap1 slapd[17224]: Entry (olcDatabase={3}mdb,cn=config), attribute 'olcMultiProvider' cannot have multiple values juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=3 RESULT tag=103 err=19 qtime=0.000008 etime=0.000185 text=attribute 'olcMultiProvider' cannot > juil. 17 13:03:32 openldap1 slapd[17224]: slap_graduate_commit_csn: removing 0x7f02cc104b80 20250717130332.671384Z#000000#00b#000000 juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=4 UNBIND Here is the content of the olcDatabase={3}mdb,cn=config entry: "olcDatabase={3}mdb,cn=config", { "objectClass":[ "olcDatabaseConfig", "olcMdbConfig" ], "olcDatabase":"{3}mdb", "olcDbDirectory":"/usr/local/openldap/data/worteks/", "olcSuffix":[ "o=service,o=worteks" ], "olcAccess":[ "{0}to * by dn=\"gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth\" read by dn=\"uid=repl,ou=security,o=service,o=worteks\" read by anonymous auth by * none break", "{1}to attrs=userPassword by * none", "{2}to dn.subtree=\"ou=security,o=service,o=worteks\" by * none", "{3}to * by * none" ], "olcAddContentAcl":true, "olcLimits":[ "{0}dn=\"uid=repl,ou=security,o=service,o=worteks\" size=unlimited time=unlimited", "{1}dn=\"gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth\" size=unlimited time=unlimited" ], "olcRootDN":"cn=admin,o=service,o=worteks", "olcRootPW":"secret", "olcSyncrepl":[ "{0}rid=012 provider=ldap://openldap1:10389 binddn=\"uid=repl,ou=security,o=service,o=worteks\" bindmethod=simple credentials=\"secret\" searchbase=\"o=service,o=worteks\" logbase=\"cn=accesslog\" logfilter=\"(&(objectClass=auditWriteObject)(reqResult=0))\" type=refreshAndPersist retry=\"5 +\" timeout=1 syncdata=accesslog", "{1}rid=011 provider=ldap://openldap2:10389 binddn=\"uid=repl,ou=security,o=service,o=worteks\" bindmethod=simple credentials=\"secret\" searchbase=\"o=service,o=worteks\" logbase=\"cn=accesslog\" logfilter=\"(&(objectClass=auditWriteObject)(reqResult=0))\" type=refreshAndPersist retry=\"5 +\" timeout=1 syncdata=accesslog" ], "olcMultiProvider":true, "olcDbCheckpoint":"1024 1", "olcDbNoSync":true, "olcDbIndex":[ "entryUUID eq", "objectClass eq", "entryCSN eq", "uid eq", "mailboxServiceIMAP eq", "mailboxServicePOP eq", "mailPrimaryAddress eq", "mailAlternativeAddress eq", "mailboxHiddenAlias eq" ], "olcDbMaxSize":137438953472 } In this context, I'm trying to modify the incorrect olcDbCheckpoint value from '1024 1' to '0 1', and the olcMultiProvider has only one value. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10347] New: Fix a memory leak in function comp_convert_asn_to_ldap
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10347 Issue ID: 10347 Summary: Fix a memory leak in function comp_convert_asn_to_ldap Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: contrib Assignee: bugs(a)openldap.org Reporter: alexguo1023(a)gmail.com Target Milestone: --- Created attachment 1076 --> https://bugs.openldap.org/attachment.cgi?id=1076&action=edit Patch: Fix a memory leak in function comp_convert_asn_to_ldap In function comp_convert_asn_to_ldap, the bv->bv_val is allocated in 3 places: case BASICTYPE_BOOLEAN: bv->bv_val = (char*)malloc( 5 ); case BASICTYPE_INTEGER: bv->bv_val = (char*)malloc( INITIAL_ATTR_SIZE ); case BASICTYPE_ENUMERATED: bv->bv_val = (char*)malloc( INITIAL_ATTR_SIZE ); When csi->csi_syntax != NULL and csi->csi_syntax->ssyn_pretty != NULL, bv->bv_val is overwriten with bv->bv_val = prettied.bv_val;, causing porential memory leak. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10348] New: Free ch_malloc-allocated memory in error paths
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10348 Issue ID: 10348 Summary: Free ch_malloc-allocated memory in error paths Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: alexguo1023(a)gmail.com Target Milestone: --- Created attachment 1077 --> https://bugs.openldap.org/attachment.cgi?id=1077&action=edit Patch: Relase memory allocated from ch_malloc in 2 error handling branches. In ldap_back_monitor_ops_init and syncrepl_dirsync_message, memory allocated with ch_malloc was not freed when errors occurred. This adds two ch_free calls to ensure proper cleanup in those branches. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10342] New: Potential Memory Leak in function mdb_txn_begin
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10342 Issue ID: 10342 Summary: Potential Memory Leak in function mdb_txn_begin Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: alexguo1023(a)gmail.com Target Milestone: --- Created attachment 1069 --> https://bugs.openldap.org/attachment.cgi?id=1069&action=edit Free txn->mt_u.dirty_list before freeing txn The function `mdb_txn_begin` allocates the dirty list via ```c txn->mt_u.dirty_list = malloc(sizeof(MDB_ID2) * MDB_IDL_UM_SIZE); ``` Later, when `txn != env->me_txn0`, it calls ```c free(txn); ``` without first freeing `txn->mt_u.dirty_list`. This orphaned allocation leads to a memory leak. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10355] New: mplay doesn't compile on musl
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10355 Issue ID: 10355 Summary: mplay doesn't compile on musl Product: LMDB Version: 0.9.33 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: tools Assignee: bugs(a)openldap.org Reporter: bgilbert(a)backtick.net Target Milestone: --- With the musl C library (e.g. Alpine Linux) mplay doesn't compile: gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mplay.c mplay.c: In function 'addpid': mplay.c:490:23: error: assignment of read-only variable 'stdin' 490 | stdin = fdopen(0, "r"); | ^ mplay.c:491:24: error: assignment of read-only variable 'stdout' 491 | stdout = fdopen(1, "w"); | ^ make: *** [Makefile:99: mplay.o] Error 1 -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10341] New: Two potential buffer overruns in function mdb_cmp_cint.
by openldap-its＠openldap.org 29 Jan '26

29 Jan '26

https://bugs.openldap.org/show_bug.cgi?id=10341 Issue ID: 10341 Summary: Two potential buffer overruns in function mdb_cmp_cint. Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: alexguo1023(a)gmail.com Target Milestone: --- Created attachment 1068 --> https://bugs.openldap.org/attachment.cgi?id=1068&action=edit Patch: Fix buffer overrun in function mdb_cmp_cint We found two potential bugs in `mdb_cmp_cint`’s backward‐scan loop: ```c u = (unsigned short *)((char *)a->mv_data + a->mv_size); c = (unsigned short *)((char *)b->mv_data + a->mv_size); do { x = *--u - *--c; } while (!x && u > (unsigned short *)a->mv_data); ``` 1. **Underflow when `a->mv_size == 0`** If `a->mv_size` is zero, `u` is initialized to point one past the end of the zero‐length buffer. The first `--u` then moves it before `a->mv_data`, and the subsequent dereference is undefined. The original API allows lengths from 0 to `0xFFFFFFFF`, so a zero length is possible can could lead to pointer underflow here. 2. **Overflow of `b->mv_data` when `b->mv_size < a->mv_size`** The code uses `a->mv_size` to advance both `u` and `c`, and only bounds‐checks `u`. If `b->mv_size` is smaller than `a->mv_size`, `c` may run past the end of its buffer before the loop terminates, causing a buffer overrun. -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs July 2025