diff --git a/fs/bcachefs/btree_key_cache.c b/fs/bcachefs/btree_key_cache.c
index d96188b92db2..6a5bdfff1f25 100644
--- a/fs/bcachefs/btree_key_cache.c
+++ b/fs/bcachefs/btree_key_cache.c
@@ -137,6 +137,10 @@ static struct bkey_cached *__bkey_cached_alloc(unsigned key_u64s, gfp_t gfp)
 	if (unlikely(!ck))
 		return NULL;
 	ck->k = kmalloc(key_u64s * sizeof(u64), gfp);
+	if (!ck->k)
+    	return -ENOMEM;
+	memset(ck->k, 0, key_u64s * sizeof(u64));
+	
 	if (unlikely(!ck->k)) {
 		kmem_cache_free(bch2_key_cache, ck);
 		return NULL;