https://bugs.openldap.org/show_bug.cgi?id=6916

--- Comment #14 from Mehmet gelisin mehmetgelisin@aol.com --- the following Syncprov overlay configuration:

dn: olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config objectClass: olcSyncProvConfig objectClass: olcOverlayConfig http://www-look-4.com/ olcOverlay: {0}syncprov olcSpCheckpoint: 100 10

http://www.compilatori.com/ You can crash slapd with the following modification as the cn=config rootdn:

dn: olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config changetype: modify replace: olcSpSessionlog http://www.wearelondonmade.com/ olcSpSessionlog: 10000

GDB backtrace shows: http://www.jopspeech.com/

#0 0x00007f7b43f8b954 in sp_cf_gen (c=0x7f7b0761b450) at syncprov.c:3164 on = 0x55d6fb385b90 si = 0x55d6fb35c700 rc = 0 http://joerg.li/ #1 0x000055d6fa4da4ec in config_modify_internal (ca=0x7f7b0761b450, rs=<optimized out>, op=<optimized out>, ce=<optimized out>) at bconfig.c:5773 vals = 0x7f7af8002680 nvals = 0x0 d = <optimized out> http://connstr.net/ e = 0x55d6fb335a38 save_attrs = 0x55d6fb349498 a = 0x55d6fb350180 i = <optimized out> dels = 0x0 rc = <optimized out> http://embermanchester.uk/ oc_at = <optimized out> ct = 0x7f7b441970e0 <spcfg+64> nocs = 3 ptr = <optimized out> s = 0x0 deltail = 0x0 ml = 0x7f7af8102cd0 http://www.slipstone.co.uk/ #2 config_back_modify (op=<optimized out>, rs=<optimized out>) at bconfig.c:5943 cfb = <optimized out> ce = <optimized out> last = 0x55d6fb387f30 ml = <optimized out> http://www.logoarts.co.uk/ ca = {argc = 1, argv = 0x7f7af8103610, argv_size = 513, line = 0x0, tline = 0x0, fname = 0x55d6fa5f5a91 "slapd", lineno = 0, log = "olcSpSessionlog: value #0", '\000' <repeats 4098 times>, reply = {err = 0, http://www.acpirateradio.co.uk/ msg = "modify/delete: olcSpSessionlog: no such attribute", '\000' <repeats 206 times>}, depth = 0, valx = -1, values = {v_int = 10000, v_uint = 10000, v_long = 10000, v_ulong = 10000, v_ber_t = 10000, v_string = 0x2710 <Address 0x2710 out of bounds>, v_bv = {bv_len https://waytowhatsnext.com/ = 10000, bv_val = 0x0}, v_dn = {vdn_dn = { bv_len = 10000, bv_val = 0x0}, vdn_ndn = {bv_len = 0, bv_val = 0x0}}, v_ad = 0x2710}, rvalue_vals = 0x0, rvalue_nvals = 0x0, op = 1, type = 2, https://www.webb-dev.co.uk/ ca_op = 0x7f7af80028f0, be = 0x55d6fb35c880, bi = 0x55d6fb385b90, ca_entry = 0x55d6fb335a38, ca_private = 0x0, cleanup = 0x0, table = Cft_Overlay} rdn = {bv_len = 10, bv_val = 0x55d6fb385d70 "olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config"} ptr = <optimized out> rad = 0x55d6fb31a570 do_pause = <optimized out> #3 0x000055d6fa508b89 in fe_op_modify (op=0x7f7af80028f0, rs=0x7f7b0761d860) at modify.c:303 http://www.iu-bloomington.com/ update = <optimized out> repl_user = <optimized out> op_be = <optimized out> bd = 0x55d6fa87da80 <slap_frontendDB>