pgsql: Fix some null pointer dereferences in LDAP auth code

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Fix some null pointer dereferences in LDAP auth code
Date: 2017-11-10 19:36:35
Message-ID: E1eDF6R-0001Kk-Tx@gemulon.postgresql.org
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Fix some null pointer dereferences in LDAP auth code

An LDAP URL without a host name such as "ldap://" or without a base DN
such as "ldap://localhost" would cause a crash when reading pg_hba.conf.

If no binddn is configured, an error message might end up trying to print a
null pointer, which could crash on some platforms.

Author: Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>
Reviewed-by: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>

Branch
------
REL9_5_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/9efd83bfd32b38c675b263f532ebe9a6ec53149e

Modified Files
--------------
src/backend/libpq/auth.c | 3 ++-
src/backend/libpq/hba.c | 6 ++++--
2 files changed, 6 insertions(+), 3 deletions(-)

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