openldap-bugs November 2025

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[Issue 10160] New: Add negset and negurl for slapo-constraint
by openldap-its＠openldap.org 12 Feb '26

12 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=10160 Issue ID: 10160 Summary: Add negset and negurl for slapo-constraint Product: OpenLDAP Version: 2.6.6 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: manu(a)netbsd.org Target Milestone: --- Created attachment 1003 --> https://bugs.openldap.org/attachment.cgi?id=1003&action=edit Add negset and negurl for slapo-constraint Add negset and negurl constraints for slapo-constraint. THe two new types are logical not of set and url. They will fire a constraint violation if the set or LDAP URL query is non empty. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10191] New: backend searches should respond to pause requests
by openldap-its＠openldap.org 12 Feb '26

12 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=10191 Issue ID: 10191 Summary: backend searches should respond to pause requests Product: OpenLDAP Version: 2.6.7 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- A long running search will cause mods to cn=config to wait a long time. Search ops should periodically check for threadpool pause requests. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9513] New: Enhanced debug output
by openldap-its＠openldap.org 12 Feb '26

12 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=9513 Issue ID: 9513 Summary: Enhanced debug output Product: OpenLDAP Version: 2.5 Hardware: All OS: All Status: UNCONFIRMED Severity: enhancement Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- While debugging ITS#9479 I needed more information on which threads were doing what actions. Also, when looking for delays/hangs/race conditions, the 1-second granularity of the debug msg timestamp was inadequate. And also, some of the debug output for the Search operation was being done in separate Debug calls for a single line of output. This gets jumbled up pretty badly if other threads are printing output as well. New patch set will extend the debug timestamp to have fractional seconds too; it will use clock_gettime for nanosecond resolution if available, otherwise use gettimeofday for microsecond resolution. Also tweak the Search debug output to only use one Debug invocation per line of output. This is MR!279. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10250] New: syncrepl_diff_entry assumes attributes come in the same order
by openldap-its＠openldap.org 12 Feb '26

12 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=10250 Issue ID: 10250 Summary: syncrepl_diff_entry assumes attributes come in the same order 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: --- When trying to diff an entry, syncrepl_diff_entry explicitly assumes attribute come in the same order. That's not always the case and could cause it to report a spurious rewrite of the attribute. Normally this is ok, unless the rewrite itself (not) occurring has other side-effects, when it could cause issues. (e.g. a DB with memberof inconsistencies being mysteriously repaired in some scenarios, which is how it was found). -- You are receiving this mail because: You are on the CC list for the issue.

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[Bug 9225] New: back-mdb: Add support for PREPARE/2-phase commit
by openldap-its＠openldap.org 12 Feb '26

12 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=9225 Bug ID: 9225 Summary: back-mdb: Add support for PREPARE/2-phase commit Product: OpenLDAP Version: 2.4.50 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- Add support for PREPARE/2-phase commit in back-mdb -- You are receiving this mail because: You are on the CC list for the bug.

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[Bug 9224] New: Add support for PREPARE/2-phase commit
by openldap-its＠openldap.org 12 Feb '26

12 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=9224 Bug ID: 9224 Summary: Add support for PREPARE/2-phase commit Product: LMDB Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: liblmdb Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- In LMDB, add support for PREPARE/2-phase commits -- You are receiving this mail because: You are on the CC list for the bug.

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[Issue 10383] New: slapd-meta ignores olcDbIDAssertBind if olcDbURI defined after it
by openldap-its＠openldap.org 10 Feb '26

10 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=10383 Issue ID: 10383 Summary: slapd-meta ignores olcDbIDAssertBind if olcDbURI defined after it Product: OpenLDAP Version: 2.6.9 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: david.frickert(a)protonmail.com Target Milestone: --- Hi, We are using slapd-meta to connect an OpenLDAP server to another external LDAP server and it works well on first configuration. However, if we want to update any info, e.g. the external LDAP URI, we must replace the olcDbURI attribute. This means that the ordering of the attributes change and this attribute is now defined after olcDbIDAssertBind. Didn't think this would be important, but after this change the "meta" connection stops working and upon enabling debugging i can see that the external LDAP server is responding with: "ldap_bind: Inappropriate authentication (48) additional info: Anonymous Simple Bind Disabled" This seems to imply that the olcDbIDAssertBind attribute is being ignored, likely due to being defined before olcDbURI (my assumption). Is this intended? If so, what can we do to mitigate this problem? Do we need to perform a replace on all attributes of the object to ensure correct ordering, or is there any way to perform an in-place attribute modification without making it shift its position in the object? Example: First configuration (OK): # {0}uri, {2}meta, config dn: olcMetaSub={0}uri,olcDatabase={2}meta,cn=config objectClass: olcMetaTargetConfig olcMetaSub: {0}uri --> olcDbURI: ldap://REDACTED/ou=users,REDACTED olcDbIDAssertBind: bindmethod=simple starttls=yes tls_reqcert=demand binddn="REDACTED" credentials="REDACTED" olcDbRewrite: {0}suffixmassage REDACTED REDACTED olcDbKeepalive: 0:0:0 olcDbBindTimeout: 100000 olcDbCancel: abandon After URI update (NOK): # {0}uri, {2}meta, config dn: olcMetaSub={0}uri,olcDatabase={2}meta,cn=config objectClass: olcMetaTargetConfig olcMetaSub: {0}uri olcDbIDAssertBind: bindmethod=simple starttls=yes tls_reqcert=demand binddn="REDACTED" credentials="REDACTED" olcDbRewrite: {0}suffixmassage REDACTED REDACTED olcDbKeepalive: 0:0:0 olcDbBindTimeout: 100000 olcDbCancel: abandon --> olcDbURI: ldap://REDACTED/ou=users,REDACTED The olcDbURI attribute is shifted to the bottom after a modify operation, and seems to cause these issues. Best Regards, David -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10162] New: Fix for binary attributes data corruption in back-sql
by openldap-its＠openldap.org 10 Feb '26

10 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=10162 Issue ID: 10162 Summary: Fix for binary attributes data corruption in back-sql Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: dex.tracers(a)gmail.com Target Milestone: --- Created attachment 1006 --> https://bugs.openldap.org/attachment.cgi?id=1006&action=edit Fix for binary attributes corruption on backed-sql I've configured slapd to use back-sql (mariadb through odbc) and observed issues with the BINARY data retrievals from the database. The length of the attributes was properly reported, but the correct data inside was always 16384 bytes and after that point - some junk (usually filled-up with AAAAAAAA and some other attributes data from memory). During the debugging - I've noticed that: - The MAX_ATTR_LEN (16384 bytes) is used to set the length of the data for BINARY columns when SQLBindCol is done inside of the "backsql_BindRowAsStrings_x" function - After SQLFetch is done - data in row->cols[i] is fetched up to the specified MAX_ATTR_LEN - After SQLFetch is done - the correct data size (greater than MAX_ATTR_LEN) is represented inside of the row->value_len I'm assuming that slapd allocates the pointer in memory (row->cols[i]), fills it with the specified amount of data (MAX_ATTR_LEN), but when forming the actual attribute data - uses the length from row->value_len and so everything from 16384 bytes position till row->value_len is just a junk from the memory (uninitialized, leftovers, data from other variables). After an investigation, I've find-out that: - for BINARY or variable length fields - SQLGetData should be used - SQLGetData supports chunked mode (if length is unknown) or full-read mode if the length is known - it could be used in pair with SQLBindCol after SQLFetch (!) Since we have the correct data length inside of row->value_len, I've just added the code to the backsql_get_attr_vals() function to overwrite the corrupted data with the correct data by issuing SQLGetData request. And it worked - binary data was properly retrieved and reported over LDAP! My current concerns / help needed - I'm not very familiar with the memory allocation/deallocation mechanisms, so I'm afraid that mentioned change can lead to memory corruption (so far not observed). Please review attached patch (testing was done on OPENLDAP_REL_ENG_2_5_13, and applied on the master branch for easier review/application). -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10026] New: Refresh handling can skip entries (si_dirty not managed properly)
by openldap-its＠openldap.org 10 Feb '26

10 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=10026 Issue ID: 10026 Summary: Refresh handling can skip entries (si_dirty not managed properly) 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: --- Take MPR plain syncrepl with 3+ providers. When a provider's own syncrepl session transitions to persist and a it starts a new parallel session towards another host, that session always has to start as a refresh. If that refresh serves entries to us, our handling of si_dirty is not consistent: - if the existing persist session serves some of these entries to us, we can "forget" to pass the others to a newly connected consumer - same if the refresh is abandoned and we start refreshing from a different provider that might be behind what we were being served (again our consumers could suffer) - if we restart, si_dirty is forgotten and our consumers suffer even worse We might need to be told (at the beginning of the refresh?) what the end state we're going for is, so we can keep si_dirty on until then. And somehow persist that knowledge in the DB... -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10358] New: syncrepl can revert an entry's CSN
by openldap-its＠openldap.org 04 Feb '26

04 Feb '26

https://bugs.openldap.org/show_bug.cgi?id=10358 Issue ID: 10358 Summary: syncrepl can revert an entry's CSN 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: --- Created attachment 1080 --> https://bugs.openldap.org/attachment.cgi?id=1080&action=edit Debug log of an instance of this happening There is a sequence of operations which can force a MPR node to apply changes out of order (essentially reverting an operation). Currently investigating which part of the code that should have prevented this has let it slip. A sample log showing how this happened is attached. -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs November 2025