From: Howard Chu <hyc@symas.com>
Date: Sat, 8 Jun 2013 21:10:08 +0000 (-0700)
Subject: Make sure mdb_stat() gets valid data
X-Git-Tag: OPENLDAP_REL_ENG_2_4_36~36^2~25
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=bcb67dd22f06a7f7c85350bc548c50ccfc27dbaa;p=openldap

Make sure mdb_stat() gets valid data
---

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 9e01fb5e07..a90d7d5510 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -7325,6 +7325,12 @@ int mdb_stat(MDB_txn *txn, MDB_dbi dbi, MDB_stat *arg)
 	if (txn == NULL || arg == NULL || dbi >= txn->mt_numdbs)
 		return EINVAL;
 
+	if (txn->mt_dbflags[dbi] & DB_STALE) {
+		MDB_cursor mc;
+		MDB_xcursor mx;
+		/* Stale, must read the DB's root. cursor_init does it for us. */
+		mdb_cursor_init(&mc, txn, dbi, &mx);
+	}
 	return mdb_stat0(txn->mt_env, &txn->mt_dbs[dbi], arg);
 }