From 06338b06d73c86272ed5d589ce65176e2216177d Mon Sep 17 00:00:00 2001
From: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
Date: Mon, 18 Jun 2018 04:03:08 -0700
Subject: [PATCH] Prevent index out of bounds error (#503)

---
 .../dendrite/roomserver/storage/event_state_keys_table.go       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/github.com/matrix-org/dendrite/roomserver/storage/event_state_keys_table.go b/src/github.com/matrix-org/dendrite/roomserver/storage/event_state_keys_table.go
index 21fe0c104..1ef933704 100644
--- a/src/github.com/matrix-org/dendrite/roomserver/storage/event_state_keys_table.go
+++ b/src/github.com/matrix-org/dendrite/roomserver/storage/event_state_keys_table.go
@@ -130,7 +130,7 @@ func (s *eventStateKeyStatements) bulkSelectEventStateKeyNID(
 func (s *eventStateKeyStatements) bulkSelectEventStateKey(
 	ctx context.Context, eventStateKeyNIDs []types.EventStateKeyNID,
 ) (map[types.EventStateKeyNID]string, error) {
-	var nIDs pq.Int64Array
+	nIDs := make(pq.Int64Array, len(eventStateKeyNIDs))
 	for i := range eventStateKeyNIDs {
 		nIDs[i] = int64(eventStateKeyNIDs[i])
 	}