--- libcuckoo/cuckoohash_map.hh	2021-09-11 11:29:05.656553870 +0100
+++ libcuckoo/cuckoohash_map.hh	2021-09-11 11:31:48.265203248 +0100
@@ -866,7 +866,8 @@
 
   class TwoBuckets {
   public:
-    TwoBuckets() {}
+    TwoBuckets()
+        : i1(0), i2(0) {}
     TwoBuckets(size_type i1_, size_type i2_, locked_table_mode)
         : i1(i1_), i2(i2_) {}
     TwoBuckets(locks_t &locks, size_type i1_, size_type i2_, normal_mode)
@@ -1552,7 +1553,8 @@
                   " MAX_BFS_PATH_LEN - 1");
     static_assert(-1 >= std::numeric_limits<decltype(depth)>::min(),
                   "The depth type must be able to hold a value of -1");
-    b_slot() {}
+    b_slot()
+        : bucket(0), pathcode(0), depth(0) {}
     b_slot(const size_type b, const uint16_t p, const decltype(depth) d)
         : bucket(b), pathcode(p), depth(d) {
       assert(d < MAX_BFS_PATH_LEN);