From: Howard Chu <hyc@openldap.org>
Date: Mon, 28 Dec 2015 20:31:09 +0000 (+0000)
Subject: MDB_VL32 fix cursor_unref - ignore cursor with empty stack
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=53f624bff0d7d08b64b48ab0c6683f4145b9bcac;p=openldap

MDB_VL32 fix cursor_unref - ignore cursor with empty stack
---

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 19930fcfc7..ae32c98961 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -1952,7 +1952,7 @@ static void
 mdb_cursor_unref(MDB_cursor *mc)
 {
 	int i;
-	if (!mc->mc_pg[0] || IS_SUBP(mc->mc_pg[0]))
+	if (!mc->mc_snum || !mc->mc_pg[0] || IS_SUBP(mc->mc_pg[0]))
 		return;
 	for (i=0; i<mc->mc_snum; i++)
 		mdb_page_unref(mc->mc_txn, mc->mc_pg[i]);