https://bugs.openldap.org/show_bug.cgi?id=9494

Issue ID: 9494 Summary: Segfault after modify olcDbMaxSize w/ autogroup Product: OpenLDAP Version: 2.4.49 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: --- Component: overlays Assignee: bugs@openldap.org Reporter: louis.chanouha@univ-toulouse.fr Target Milestone: ---

Hello, Yet another crash when modifying olcDbMaxSize. Seems not to be related to other similar reports. autogroup works fine until : - attempt to modify olcDbMaxSize - attempt to modify olcAGattrSet (segfault to, need to delete the overlay and add it again) - do not rely on olcMemberOfMemberAD (extra memberof module)

requested change --------------------------------------------:

dn: olcDatabase={1}mdb,cn=config changetype: modify replace: olcDbMaxSize olcDbMaxSize: 4294967296

openldap logs -----------------------------------------------:

6046b5c3 ==> autogroup_db_close 6046b5c3 ==> autogroup_db_close 6046b5c3 mdb_db_open: database "dc=domain,dc=fr": dbenv_open(/var/lib/ldap). 6046b5c3 ==> autogroup_db_open 6046b5c3 ==> autogroup_build_def_filter put_filter: "(objectClass=groupOfURLs)" put_filter: simple put_simple_filter: "objectClass=groupOfURLs" ber_scanf fmt ({mm}) ber: 6046b5c3 => mdb_search 6046b5c3 mdb_dn2entry("dc=domain,dc=fr") 6046b5c3 => mdb_dn2id("dc=domain,dc=fr") 6046b5c3 <= mdb_dn2id: got id=0x1 6046b5c3 => mdb_entry_decode: 6046b5c3 <= mdb_entry_decode 6046b5c3 search_candidates: base="dc=domain,dc=fr" (0x00000001) scope=2 6046b5c3 => mdb_equality_candidates (objectClass) 6046b5c3 => key_read 6046b5c3 <= mdb_index_read: failed (-30798) 6046b5c3 <= mdb_equality_candidates: id=0, first=0, last=0 6046b5c3 => mdb_equality_candidates (objectClass) 6046b5c3 => key_read 6046b5c3 <= mdb_index_read 5 candidates 6046b5c3 <= mdb_equality_candidates: id=5, first=18173, last=18177 6046b5c3 mdb_search_candidates: id=5 first=18173 last=18177 6046b5c3 => mdb_entry_decode: 6046b5c3 <= mdb_entry_decode 6046b5c3 ==> autogroup_group_add_cb <cn=cxxx,ou=groups,dc=domain,dc=fr> 6046b5c3 ==> autogroup_add_group <cn=xxx,ou=groups,dc=domain,dc=fr>

Thread 3 "slapd" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7feb7d42c700 (LWP 37453)]

GDB dump --------------------------------------

(gdb) info frame Stack level 0, frame at 0x7feb7d297fd0: rip = 0x55b4569bcba0 in dnMatch; saved rip = 0x7feb9e5f768b called by frame at 0x7feb7d298070 Arglist at 0x7feb7d297f88, args: Locals at 0x7feb7d297f88, Previous frame's sp is 0x7feb7d297fd0 Saved registers: rbx at 0x7feb7d297f98, rbp at 0x7feb7d297fa0, r12 at 0x7feb7d297fa8, r13 at 0x7feb7d297fb0, r14 at 0x7feb7d297fb8, r15 at 0x7feb7d297fc0, rip at 0x7feb7d297fc8 (gdb) bt #0 0x000055b4569bcba0 in dnMatch () #1 0x00007feb9e5f768b in ?? () from /usr/lib/ldap/autogroup.so.0 #2 0x00007feb9e5f98fb in ?? () from /usr/lib/ldap/autogroup.so.0 #3 0x000055b4569b6eb8 in ?? () #4 0x000055b4569b8a31 in slap_send_search_entry () #5 0x00007feb9e63dbf6 in mdb_search () from /usr/lib/ldap/back_mdb-2.4.so.2 #6 0x000055b456a16c68 in overlay_op_walk () #7 0x000055b456a16d97 in ?? () #8 0x00007feb9e5f9be0 in ?? () from /usr/lib/ldap/autogroup.so.0 #9 0x000055b456a15dd8 in ?? () #10 0x00007feb9e632eb8 in ?? () from /usr/lib/ldap/back_mdb-2.4.so.2 #11 0x000055b4569908b6 in ?? () #12 0x000055b4569be8aa in fe_op_modify () #13 0x000055b4569c0930 in do_modify () #14 0x000055b4569a66ed in ?? () #15 0x000055b4569a722c in ?? () #16 0x00007feb9fa5ea03 in ?? () from /lib/x86_64-linux-gnu/libldap_r-2.4.so.2 #17 0x00007feb9f990609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #18 0x00007feb9f8b7293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

cn=config overlays ----------------------------------

22 olcOverlay={0}memberof,olcDatabase={1}mdb,cn=config objectClass: olcConfig objectClass: olcMemberOf objectClass: olcOverlayConfig objectClass: top olcOverlay: memberof olcMemberOfDangling: ignore olcMemberOfRefInt: TRUE olcMemberOfGroupOC: groupOfNames olcMemberOfMemberAD: member olcMemberOfMemberOfAD: memberOf

23 olcOverlay={1}ppolicy,olcDatabase={1}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcPPolicyConfig olcOverlay: {1}ppolicy olcPPolicyDefault: cn=orga_default,ou=Policies,dc=domain,dc=fr olcPPolicyHashCleartext: FALSE olcPPolicyUseLockout: TRUE olcPPolicyForwardUpdates: TRUE

24 olcOverlay={2}syncprov,olcDatabase={1}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcSyncProvConfig olcOverlay: {2}syncprov

25 olcOverlay={3}memberof,olcDatabase={1}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcMemberOf objectClass: olcConfig olcOverlay: {3}memberof olcMemberOfDangling: ignore olcMemberOfRefInt: TRUE olcMemberOfGroupOC: groupOfNames olcMemberOfMemberAD: member

26 olcOverlay={4}autogroup,olcDatabase={1}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcAutomaticGroups olcOverlay: {4}autogroup olcAGattrSet: {0}groupOfURLs memberURL member olcAGmemberOfAd: memberOf

27 olcOverlay={5}memberof,olcDatabase={1}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcMemberOf objectClass: olcConfig olcOverlay: {5}memberof olcMemberOfDangling: ignore olcMemberOfRefInt: TRUE olcMemberOfGroupOC: groupOfURLs olcMemberOfMemberAD: member

28 olcOverlay={6}autogroup,olcDatabase={1}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcAutomaticGroups olcOverlay: {6}autogroup olcAGattrSet: {0}groupOfURLs memberUidURL memberUid