openldap-bugs May 2022

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[Issue 9564] New: Race condition with freeing the spilled pages from transaction
by openldap-its＠openldap.org 04 Nov '25

04 Nov '25

https://bugs.openldap.org/show_bug.cgi?id=9564 Issue ID: 9564 Summary: Race condition with freeing the spilled pages from transaction Product: LMDB Version: 0.9.29 Hardware: Other OS: Mac OS Status: UNCONFIRMED Severity: normal Priority: --- Component: liblmdb Assignee: bugs(a)openldap.org Reporter: kriszyp(a)gmail.com Target Milestone: --- Created attachment 825 --> https://bugs.openldap.org/attachment.cgi?id=825&action=edit Free the spilled pages and dirty overflows before unlocking the write mutex The spilled pages (a transaction's mt_spill_pgs) is freed *after* a write transaction's mutex is unlocked (in mdb.master3). This can result in a race condition where a second transaction can start and subsequently assign a new mt_spill_pgs list to the transaction structure that it reuses. If this occurs after the first transaction unlocks the mutex, but before it performs the free operation on mt_spill_pgs, then the first transaction will end up calling a free on the same spilled page list as the second transaction, resulting in a double free (and crash). It would seem to be an extremely unlikely scenario to actually happen, since the free call is literally the next operation after the mutex is unlocked, and the second transaction would need to make it all the way to the point of saving the freelist before a page spill list is likely to be allocated. Consequently, this probably has rarely happened. However, one of our users (see https://github.com/DoctorEvidence/lmdb-store/issues/48 for the discussion) has noticed this occurring, and it seems that it may be particularly likely to happen on MacOS on the new M1 silicon. Perhaps there is some peculiarity to how the threads are more likely to yield execution after a mutex unlock, I am not sure. I was able to reproduce the issue by intentionally manipulating the timing (sleeping before the free) to verify that the race condition is technically feasible, and apparently this can happen "in the wild" on MacOS, at least with an M1. It is also worth noting that this is due to (or a regression from) the fix for ITS#9155 (https://github.com/LMDB/lmdb/commit/cb256f409bb53efeda4ac69ee8165a0b4fc1a277) where the free call was moved outside the conditional (for having a parent) that had previously never been executed after the mutex is unlocked, but now is called after the unlock. Anyway, the solution is relatively simple, the free call simply has to be moved above the unlock. In my patch, I also moved the free call for mt_dirty_ovs. I am not sure what OVERFLOW_NOTYET/mt_dirty_ovs is for, but presumably it should be handled the same. This could alternately be solved by saving the reference to these lists before unlocking, and freeing after unlocking, which would slightly decrease the amount of processing within the mutex guarded code. Let me know if you prefer a patch that does that. -- 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 26 Aug '25

26 Aug '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 9849] New: Update website to support LTS and Feature releases
by openldap-its＠openldap.org 15 Jul '25

15 Jul '25

https://bugs.openldap.org/show_bug.cgi?id=9849 Issue ID: 9849 Summary: Update website to support LTS and Feature releases Product: website Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: website Assignee: bugs(a)openldap.org Reporter: mnormann(a)symas.com Target Milestone: --- Modify .wlmrc variable names and website content to handle both Feature Release and Long Term Support release. -- You are receiving this mail because: You are on the CC list for the issue.

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[Bug 9245] New: devel/programming needs rewrite
by openldap-its＠openldap.org 28 Jan '25

28 Jan '25

https://bugs.openldap.org/show_bug.cgi?id=9245 Bug ID: 9245 Summary: devel/programming needs rewrite Product: website Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: website Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- The information on the devel/programming web page is at least a decade out of date and needs a complete overhaul. -- You are receiving this mail because: You are on the CC list for the bug.

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[Issue 9827] New: Feature request for module argon2.so to support Argon2i, Argon2d, Argon2id
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=9827 Issue ID: 9827 Summary: Feature request for module argon2.so to support Argon2i, Argon2d, Argon2id Product: OpenLDAP Version: 2.6.1 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: juergen.sprenger(a)swisscom.com Target Milestone: --- Hi, This is a feature request. I would like to be able to chooses between Argon2i, Argon2d and Argon2id in slappasswd like in argon2 command: # argon2 Usage: argon2 [-h] salt [-i|-d|-id] [-t iterations] [-m log2(memory in KiB) | -k memory in KiB] [-p parallelism] [-l hash length] [-e|-r] [-v (10|13)] Password is read from stdin Parameters: salt The salt to use, at least 8 characters -i Use Argon2i (this is the default) -d Use Argon2d instead of Argon2i -id Use Argon2id instead of Argon2i -t N Sets the number of iterations to N (default = 3) -m N Sets the memory usage of 2^N KiB (default 12) -k N Sets the memory usage of N KiB (default 4096) -p N Sets parallelism to N threads (default 1) -l N Sets hash output length to N bytes (default 32) -e Output only encoded hash -r Output only the raw bytes of the hash -v (10|13) Argon2 version (defaults to the most recent version, currently 13) -h Print argon2 usage Example: /usr/local/etc/openldap # /usr/sbin/slappasswd -h "{ARGON2}" -o module-load="argon2.so i" -s secret /usr/local/etc/openldap # /usr/sbin/slappasswd -h "{ARGON2}" -o module-load="argon2.so d" -s secret /usr/local/etc/openldap # /usr/sbin/slappasswd -h "{ARGON2}" -o module-load="argon2.so id" -s secret Best regards Juergen Sprenger -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9393] New: Provider a LDAP filter validation function
by openldap-its＠openldap.org 12 Nov '24

12 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=9393 Issue ID: 9393 Summary: Provider a LDAP filter validation function Product: OpenLDAP Version: 2.4.56 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: best(a)univention.de Target Milestone: --- In many situations I need to validate if a user submitted LDAP filter has valid syntax. It seems there is no official function to check this. Could you provide one? libraries/libldap/filter.c: ldap_pvt_put_filter() can be used as a basis. -- My current workaround is using a unconnected ldap connection and do a search with that filter. This yields a FILTER_ERROR (invalid filter) or a SERVER_DOWN error (invalid filter). See also: https://github.com/python-ldap/python-ldap/pull/272 -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9356] New: Add list of peerSIDs to consumer cookie to reduce cross traffic
by openldap-its＠openldap.org 15 Oct '24

15 Oct '24

https://bugs.openldap.org/show_bug.cgi?id=9356 Issue ID: 9356 Summary: Add list of peerSIDs to consumer cookie to reduce cross traffic Product: OpenLDAP Version: 2.5 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- If we add a list of peersids to the cookie, each consumer can tell the providers who else the consumers talk to and then the provider can omit sending updates to that consumer, originating from those peers There's some special handling needed if a connection dies If a consumer loses one of its peer connections, and after N retries is still not connected, it should send a new cookie to its remaining peers saying "here's my new peer list" with the missing one removed. Likewise, if a retry eventually connects again, it can send a new cookie again Make that peer list reset configurable in the syncrepl config stanza. This can help account for end admin knowledge that some links may be more or less stable than other ones. The idea here is that if one of your other peers can still see the missing peer, they can start routing updates to you again It should abandon all existing persist sessions and send a new sync search with the new cookie to all remaining peers For consumer side, also means adding the sid for a given provider into the syncrepl stanza to save on having to try and discover the peer sid. -- You are receiving this mail because: You are on the CC list for the issue.

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[Bug 9219] New: Streamline tool API for 2.5
by openldap-its＠openldap.org 15 Oct '24

15 Oct '24

https://bugs.openldap.org/show_bug.cgi?id=9219 Bug ID: 9219 Summary: Streamline tool API for 2.5 Product: OpenLDAP Version: 2.5 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- The current tool API is a mess and needs fixing for 2.5. This affects things like slapacl (The fix for bug#7920 was a kludge to deal with this, needs revisiting). -- You are receiving this mail because: You are on the CC list for the bug.

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[Issue 9813] New: Incompatibility between remoteauth and ppolicy overlays
by openldap-its＠openldap.org 17 Sep '24

17 Sep '24

https://bugs.openldap.org/show_bug.cgi?id=9813 Issue ID: 9813 Summary: Incompatibility between remoteauth and ppolicy overlays Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: thierry.pubellier(a)paris.fr Target Milestone: --- Hi, We are planning to use OpenLDAP as a proxy for some users in our Active Directory servers, using remoteauth overlay. We want this OpenLDAP instance to also implement an account lockout policy, preventing the lockout on our internal Active Directory servers. But there seems to be an incompatibility between remoteauth and ppolicy overlays : remoteauth won't remote authenticate a user if local userPassword attribute exists, while ppolicy overlay needs this attribute. Could there be a configuration parameter in ppolicy to allow lockout checks/modifications (which seemed to be the default behavior of OpenLDAP before ITS#7089) ? I can provide a patch if allowed. Thanks by advance, Best regards, Thierry -- You are receiving this mail because: You are on the CC list for the issue.

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[Bug 9193] New: HTML in mailing list description
by openldap-its＠openldap.org 19 Mar '24

19 Mar '24

https://bugs.openldap.org/show_bug.cgi?id=9193 Bug ID: 9193 Summary: HTML in mailing list description Product: website Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: website Assignee: bugs(a)openldap.org Reporter: ryan(a)openldap.org Target Milestone: --- e.g. https://lists.openldap.org/postorius/lists/openldap-devel.openldap.org/ contains code for links and formatting, but all inside of a <pre> block. -- You are receiving this mail because: You are on the CC list for the bug.

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openldap-bugs May 2022