Do not follow uninited cursors' page pointers.

Nor uninited cursors' subcursors' page pointers.

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 620e5b51ff309828f289bee69b090ec4b58f17e8..0ba5e2dbd029db1b618e2c8aef12d0a62135b476 100644 (file)
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -5328,6 +5328,7 @@ put_sub:
 
                                        for (m2 = mc->mc_txn->mt_cursors[mc->mc_dbi]; m2; m2=m2->mc_next) {
                                                if (m2 == mc || m2->mc_snum < mc->mc_snum) continue;
+                                               if (!(m2->mc_flags & C_INITIALIZED)) continue;
                                                if (m2->mc_pg[i] == mp && m2->mc_ki[i] == mc->mc_ki[i]) {
                                                        mdb_xcursor_init1(m2, leaf);
                                                }
@@ -7025,7 +7026,7 @@ done:
                                m3 = m2;
                        if (m3 == mc)
                                continue;
-                       if (!(m3->mc_flags & C_INITIALIZED))
+                       if (!(m2->mc_flags & m3->mc_flags & C_INITIALIZED))
                                continue;
                        if (m3->mc_flags & C_SPLITTING)
                                continue;