From 1eac7026fb496acdf24171192468b91afe99cc8b Mon Sep 17 00:00:00 2001
From: litan1 <106347144+ltan1ms@users.noreply.github.com>
Date: Tue, 1 Aug 2023 12:03:53 -0700
Subject: [PATCH] Pass nullptr as nullT when creating thread_data that's of
 ConcurrentQueue<SSDThreadData*> type, otherwise the default null_T is
 uninitialized, could point to arbitraty memory (#408)

---
 src/pq_flash_index.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pq_flash_index.cpp b/src/pq_flash_index.cpp
index 70431ded6..5bd23ecb0 100644
--- a/src/pq_flash_index.cpp
+++ b/src/pq_flash_index.cpp
@@ -41,7 +41,7 @@ namespace diskann
 
 template <typename T, typename LabelT>
 PQFlashIndex<T, LabelT>::PQFlashIndex(std::shared_ptr<AlignedFileReader> &fileReader, diskann::Metric m)
-    : reader(fileReader), metric(m)
+    : reader(fileReader), metric(m), thread_data(nullptr)
 {
     if (m == diskann::Metric::COSINE || m == diskann::Metric::INNER_PRODUCT)
     {