diff --git a/device_mapper/libdm-report.c b/device_mapper/libdm-report.c
index d6d485964..6301d7e21 100644
--- a/device_mapper/libdm-report.c
+++ b/device_mapper/libdm-report.c
@@ -4757,6 +4757,8 @@ static int _output_as_rows(struct dm_report *rh)
 	dm_list_iterate_items(fp, &rh->field_props) {
 		if (fp->flags & FLD_HIDDEN) {
 			dm_list_iterate_items(row, &rh->rows) {
+				if (dm_list_empty(&row->fields))
+					continue;
 				field = dm_list_item(dm_list_first(&row->fields), struct dm_report_field);
 				dm_list_del(&field->list);
 			}
diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
index 35263b802..6252c4469 100644
--- a/lib/metadata/lv_manip.c
+++ b/lib/metadata/lv_manip.c
@@ -1959,7 +1959,7 @@ static uint32_t _stripes_per_mimage(struct lv_segment *seg)
 
 	if (seg_is_mirrored(seg) && seg->area_count && seg_type(seg, 0) == AREA_LV) {
 		last_lvseg = dm_list_item(dm_list_last(&seg_lv(seg, 0)->segments), struct lv_segment);
-		if (seg_is_striped(last_lvseg))
+		if (last_lvseg && seg_is_striped(last_lvseg))
 			return last_lvseg->area_count;
 	}
 
diff --git a/libdm/libdm-report.c b/libdm/libdm-report.c
index 95d5733a2..f3a2cfb11 100644
--- a/libdm/libdm-report.c
+++ b/libdm/libdm-report.c
@@ -4755,6 +4755,8 @@ static int _output_as_rows(struct dm_report *rh)
 	dm_list_iterate_items(fp, &rh->field_props) {
 		if (fp->flags & FLD_HIDDEN) {
 			dm_list_iterate_items(row, &rh->rows) {
+				if (dm_list_empty(&row->fields))
+					continue;
 				field = dm_list_item(dm_list_first(&row->fields), struct dm_report_field);
 				dm_list_del(&field->list);
 			}
diff --git a/tools/lvconvert.c b/tools/lvconvert.c
index c575f823b..220f1a9c5 100644
--- a/tools/lvconvert.c
+++ b/tools/lvconvert.c
@@ -5792,6 +5792,11 @@ static int _lvconvert_detach_writecache_when_clean(struct cmd_context *cmd,
 	int is_lockd;
 	int ret = 0;
 
+	if (dm_list_empty(&lr->poll_idls)) {
+		log_error(INTERNAL_ERROR "Cannot detach writecache.");
+		return 0;
+	}
+
 	idl = dm_list_item(dm_list_first(&lr->poll_idls), struct convert_poll_id_list);
 	id = idl->id;
 	is_lockd = lvmcache_vg_is_lockd_type(cmd, id->vg_name, NULL);