diff --git a/fix-remove-loose-pg-from-dirty-list.patch b/fix-remove-loose-pg-from-dirty-list.patch
new file mode 100644
index 0000000..6b8f1e3
--- /dev/null
+++ b/fix-remove-loose-pg-from-dirty-list.patch
@@ -0,0 +1,56 @@
+From 1ffe472a080fcd3c7dab6e352848703ad7adbe14 Mon Sep 17 00:00:00 2001
+From: Howard Chu <hyc@openldap.org>
+Date: Fri, 22 Jun 2018 16:30:13 +0100
+Subject: [PATCH] ITS#8756 remove loose pg from dirty list in freelist_save
+
+---
+ libraries/liblmdb/mdb.c | 33 ++++++++++++++++++++++++++++++++-
+ 1 file changed, 32 insertions(+), 1 deletion(-)
+
+diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
+index a487e156..63872c92 100644
+--- a/libraries/liblmdb/mdb.c
++++ b/libraries/liblmdb/mdb.c
+@@ -3444,10 +3444,41 @@ mdb_freelist_save(MDB_txn *txn)
+ 		 * we may be unable to return them to me_pghead.
+ 		 */
+ 		MDB_page *mp = txn->mt_loose_pgs;
++		MDB_ID2 *dl = txn->mt_u.dirty_list;
++		unsigned x;
+ 		if ((rc = mdb_midl_need(&txn->mt_free_pgs, txn->mt_loose_count)) != 0)
+ 			return rc;
+-		for (; mp; mp = NEXT_LOOSE_PAGE(mp))
++		for (; mp; mp = NEXT_LOOSE_PAGE(mp)) {
+ 			mdb_midl_xappend(txn->mt_free_pgs, mp->mp_pgno);
++			/* must also remove from dirty list */
++			if (txn->mt_flags & MDB_TXN_WRITEMAP) {
++				for (x=1; x<=dl[0].mid; x++)
++					if (dl[x].mid == mp->mp_pgno)
++						break;
++				mdb_tassert(txn, x <= dl[0].mid);
++			} else {
++				x = mdb_mid2l_search(dl, mp->mp_pgno);
++				mdb_tassert(txn, dl[x].mid == mp->mp_pgno);
++			}
++			dl[x].mptr = NULL;
++			mdb_dpage_free(env, mp);
++		}
++		{
++			/* squash freed slots out of the dirty list */
++			unsigned y;
++			for (y=1; dl[y].mptr && y <= dl[0].mid; y++);
++			if (y <= dl[0].mid) {
++				for(x=y, y++;;) {
++					while (!dl[y].mptr && y <= dl[0].mid) y++;
++					if (y > dl[0].mid) break;
++					dl[x++] = dl[y++];
++				}
++				dl[0].mid = x-1;
++			} else {
++				/* all slots freed */
++				dl[0].mid = 0;
++			}
++		}
+ 		txn->mt_loose_pgs = NULL;
+ 		txn->mt_loose_count = 0;
+ 	}
diff --git a/lmdb.spec b/lmdb.spec
index fcd15b1..178bff0 100644
--- a/lmdb.spec
+++ b/lmdb.spec
@@ -3,7 +3,7 @@
 
 Name:           lmdb
 Version:        0.9.22
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Memory-mapped key-value database
 
 License:        OpenLDAP
@@ -14,6 +14,9 @@ Source1:        lmdb.pc.in
 Patch0: lmdb-make.patch
 Patch1: lmdb-s390-check.patch
 
+# Upstream fix for rhbz#1645114
+Patch2: fix-remove-loose-pg-from-dirty-list.patch
+
 BuildRequires: make
 BuildRequires: gcc
 BuildRequires: doxygen
@@ -54,6 +57,8 @@ The %{name}-doc package contains automatically generated documentation for %{nam
 %patch0 -p1 -b .make
 %patch1 -p1 -b .s390-check
 
+%patch2 -p1 -b .page_dirty
+
 
 %build
 pushd %{archive_path}
@@ -121,6 +126,9 @@ popd
 
 
 %changelog
+* Mon Nov 05 2018 Jan Staněk <jstanek@redhat.com> - 0.9.22-4
+- Import upstream fix for rhbz#1645114
+
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.9.22-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild