openldap-bugs August 2025

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[Issue 9816] New: slapcat cordeumps during mdb subtree dump with -s
by openldap-its＠openldap.org 12 Dec '25

12 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=9816 Issue ID: 9816 Summary: slapcat cordeumps during mdb subtree dump with -s Product: OpenLDAP Version: 2.5.11 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: khoffmann(a)united-internet.de Target Milestone: --- Created attachment 887 --> https://bugs.openldap.org/attachment.cgi?id=887&action=edit gdb backtrace of slapcat run When trying to use slapcat in combination with -b and -s in order to create a LDIF backup of a mdb subtree, slapd crashes with a coredump (please see the attached snippet with gdb output from a reproduced test tree). The problem was reporducible with different mdb databases / suffixes and only appears with option -s. The same dump with -H 'ldap:///ou=users,o=company,c=de??sub?' instead of -s ou=users,o=company,c=de works perfectly fine, as long as the "attrs part" is empty in the ldap-uri. Also using slapcat with -b only (for a full database dump) works fine as well. I'm aware of the fact that -s option is marked as DEPRECATED - I'm not sure if you are going to fix this bug or if you rather take the change to remove the option completely from future major versions. Please let me also know if it's expected behaviour that the -H option doesn't work whenever the attribute part isn't empty and if I should contribute to a documentation update for this edge case. Best regards, Kris -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9936] New: slapd attempting free on address which was not malloced
by openldap-its＠openldap.org 12 Dec '25

12 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=9936 Issue ID: 9936 Summary: slapd attempting free on address which was not malloced Product: OpenLDAP Version: 2.6.3 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: kimjuhi96(a)snu.ac.kr Target Milestone: --- I get invalid free running this on the latest openldap from git, built with CFLAGS="-fsanitize=address" using clang 15. Seems this is similar to https://bugs.openldap.org/show_bug.cgi?id=9912. ./servers/slapd/slapd -T c -s1 -s1 Stopped reason: SIGABRT __GI_raise (sig=sig@entry=0x6) at ../sysdeps/unix/sysv/linux/raise.c:50 50 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. gdb-peda$ bt #0 __GI_raise (sig=sig@entry=0x6) at ../sysdeps/unix/sysv/linux/raise.c:50 #1 0x00007ffff78ca859 in __GI_abort () at abort.c:79 #2 0x00005555556eb04f in __sanitizer::Abort () at /home/juhee/project/foxfuzz/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp:143 #3 0x00005555556e8aac in __sanitizer::Die () at /home/juhee/project/foxfuzz/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_termination.cpp:58 #4 0x00005555556c5dda in __asan::ScopedInErrorReport::~ScopedInErrorReport (this=0x7fffffffbe7e, __in_chrg=<optimized out>) at /home/juhee/project/foxfuzz/llvm-project/compiler-rt/lib/asan/asan_report.cpp:192 #5 0x00005555556c72b8 in __asan::ReportFreeNotMalloced (addr=<optimized out>, free_stack=0x7fffffffca90) at /home/juhee/project/foxfuzz/llvm-project/compiler-rt/lib/asan/asan_report.cpp:199 #6 0x00005555556c02ab in __interceptor_free (ptr=0x7fffffffe359) at /home/juhee/project/foxfuzz/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:53 #7 0x0000555555d3efe2 in ber_memfree_x () #8 0x0000555555847d33 in ch_free () #9 0x0000555555a31178 in slap_tool_init () #10 0x0000555555a2e54d in slapcat () #11 0x000055555570901f in main () #12 0x00007ffff78cc083 in __libc_start_main (main=0x555555706ef0 <main>, argc=0x5, argv=0x7fffffffdfc8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffdfb8) at ../csu/libc-start.c:308 #13 0x000055555561011e in _start () at /home/juhee/project/foxfuzz/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h:397 gdb-peda$ -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10362] New: Normalised value confusions in replication
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10362 Issue ID: 10362 Summary: Normalised value confusions in replication 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: --- A lot of code expects a_nvals state to be consistent across modifies and multiple instances of the same attribute (with asserts to that effect), but replication doesn't seem to obey this: Add this assert into syncrepl_diff_entry()[0] : assert( ( old->a_nvals == NULL ) == ( new->a_nvals == NULL ) ); if ( old->a_nvals ) assert( ( old->a_nvals == old->a_vals ) == ( new->a_nvals == new->a_vals ) ); You'll see many tests fail this, the first of which is test043. [0]. https://git.openldap.org/openldap/openldap/-/blob/14d47146b0442df85bd949b21… -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10332] New: Add support for SSLKEYLOGFILE environment variable to export keys for Wireshark decryption
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10332 Issue ID: 10332 Summary: Add support for SSLKEYLOGFILE environment variable to export keys for Wireshark decryption Product: OpenLDAP Version: 2.6.9 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: michael.osipov(a)siemens.com Target Milestone: --- Please add support to do the following: SSLKEYLOGFILE=keylog.txt ldapsearch -H ldaps://... Other libraries and tools support it to decrypt the TLS traffic with Wireshark for analysis purposes. Curl has a simple, but complete implementation: https://github.com/curl/curl/blob/e008f71f435a39875d86885a96b2eb8968a60fd4/… Maybe it can be reused if license allows that?! -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10311] New: Work with IETF LDAP working group to update password hashing mechanism RFC
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10311 Issue ID: 10311 Summary: Work with IETF LDAP working group to update password hashing mechanism RFC Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- Work with the IETF ldap working group to update the RFC to make the suggested hashing mechanism be what is currently "best practice" rather than a specific hashing mechanism. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10100] New: Non-sequential timestamps being logged on Windows
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10100 Issue ID: 10100 Summary: Non-sequential timestamps being logged on Windows Product: OpenLDAP Version: 2.6.6 Hardware: x86_64 OS: Windows Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: smckinney(a)symas.com Target Milestone: --- Presents as a dsync during replication. Consumer will log ``` 650af021.2eadd901 0000000000001b40 slap_queue_csn: queueing 0000000002ac1620 20230920131409.992477Z#000000#001#000000 650af021.2eaed239 0000000000001b40 slap_graduate_commit_csn: removing 0000000002ac1620 20230920131409.992477Z#000000#001#000000 650af021.317b2a35 000000000000185c do_syncrep2: rid=102 CSN too old, ignoring 20230920131409.040136Z#000000#001#000000 (uid=slapd-test1-FOO1-6,ou=People,dc=example,dc=com) ``` The entry was not be added. The provider will log messages using non-sequential timestamps. For example, when grepping the CSN from above (in provider log): ``` # This: 650af021.3b3060d9 0000000000001ad8 conn=1001 op=1 syncprov_sendresp: to=002, cookie=rid=102,sid=001,csn=20230920131409.992477Z#000000#001#000000 # and: 650af021.02648749 0000000000001810 slap_get_csn: conn=1003 op=7 generated new csn=20230920131409.040136Z#000000#001#000000 manage=1 ``` -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10286] New: ldap_pvt_gettime may result in "not new enough csn" problems in multi-thread case.
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10286 Issue ID: 10286 Summary: ldap_pvt_gettime may result in "not new enough csn" problems in multi-thread case. Product: OpenLDAP Version: 2.6.6 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: 971748261(a)qq.com Target Milestone: --- Created attachment 1041 --> https://bugs.openldap.org/attachment.cgi?id=1041&action=edit the log of adding two entry which shows the time sequence. I used openldap as krb5's database, and openldap was deploymented in mirrormode. I tried to add kerberos principals via kadmin.local -q "addprinc -randkey principal. slapd log showed that the entry of kadmin/admin was added earlier than the entry of ossuser. But the csn of kadmin/admin was greater than ossuser. In this case, when the two entry began to sync to the other slapd server, ossuser was ignored because of "csn not new enough" -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10277] New: How to deal with desync between cn=config and back-ldif DNs
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10277 Issue ID: 10277 Summary: How to deal with desync between cn=config and back-ldif DNs 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: --- If someone deletes a cn=config entry offline (or through bugs in cn=config, they exist, will file as I isolate), the X-ORDERED RDNs will not be contiguous. cn=config papers over this internally at a cost of never being able to modify the entries affected. Right now the only remedy is slapcat+slapadd of the whole config DB, is that the best we can do? When we detect this (doesn't always happen), should we fix the on-disk copy on startup? -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10269] New: slap-constraint: Refactor to use a sorted array
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10269 Issue ID: 10269 Summary: slap-constraint: Refactor to use a sorted array Product: OpenLDAP Version: 2.6.8 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- As noted in the comments for slapo-constraint: /* * Linked list of attribute constraints which we should enforce. * This is probably a sub optimal structure - some form of sorted * array would be better if the number of attributes constrained is * likely to be much bigger than 4 or 5. We stick with a list for * the moment. */ -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10268] New: Operation rate limiting
by openldap-its＠openldap.org 09 Dec '25

09 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=10268 Issue ID: 10268 Summary: Operation rate limiting Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: chris.paul(a)rexconsulting.net Target Milestone: --- Please consider this request for enhancement. It would be very useful for slapd to have some basic rate limiting per connection or per IP. The monitorConnectionsOpsCompleted counts are available in cn=monitor. A dependency of cn=monitor seems reasonable. -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs August 2025