Hi, We have an LDAP client that calls into OpenSSL libraries to talk to a secure LDAP server. If for any reason we lose connection to the LDAP server, the LDAP handle is freed. As part of ldap_unbind(LDAP *ld), the ssl3_shutdown() is called, which calls "read" and hangs.
The stack is as follows: (gdb) bt 15 #0 0x000000080166935c in read () at read.S:2 #1 0x00000008014748f0 in __read (fd=49, buf=0x803293003, nbytes=5) at src/freebsd-c/lib/libthr/thread/thr_syscalls.c:384 #2 0x0000000802c715d2 in sb_stream_read (sbiod=0x805664850, buf=0x803293003, len=5) at src/openldap/libraries/liblber/sockbuf.c:493 #3 0x0000000802c7207e in sb_debug_read (sbiod=0x805664970, buf=0x803293003, len=5) at src /openldap/libraries/liblber/sockbuf.c:827 #4 0x0000000802356971 in tlso_bio_read (b=0x803205320, buf=0x803293003 "\027\003\001", len=5) at tls_o.c:687 #5 0x000000080252c2df in BIO_read () from /usr/lib/libcrypto.so.1.0.0 #6 0x0000000802eb9f01 in ssl3_read_n () from /usr/lib/libssl.so.1.0.0 #7 0x0000000802eba3ce in ssl3_read_bytes () from /usr/lib/libssl.so.1.0.0 #8 0x0000000802eb67ac in ssl3_shutdown () from /usr/lib/libssl.so.1.0.0 #9 0x0000000802356cf6 in tlso_sb_close (sbiod=0x8056649d0) at tls_o.c:808 #10 0x0000000802c71253 in ber_int_sb_close (sb=0x80329e0d0) at src/openldap/libraries/liblber/sockbuf.c:383 #11 0x000000080233d625 in ldap_free_connection (ld=0x80323f800, lc=0x803205240, force=1, unbind=1) at request.c:769 If anyone has seen a similar problem and know any fix, please let me know what needs to be done, appreciate any help. I have posted this to OpenLDAP, but did not have much luck. Thanks R.K. Aditham
