diff --git a/projects/rocr-runtime/src/fmm.c b/projects/rocr-runtime/src/fmm.c
index ceae462d79..44492b63f3 100644
--- a/projects/rocr-runtime/src/fmm.c
+++ b/projects/rocr-runtime/src/fmm.c
@@ -933,6 +933,8 @@ void *fmm_allocate_scratch(uint32_t gpu_id, uint64_t MemorySizeInBytes)
 			munmap(aligned_end,
 			       VOID_PTRS_SUB(padded_end, aligned_end));
 		mem = aligned_start;
+
+		memset(mem, 0, aligned_size);
 	}
 
 	/* Remember scratch backing aperture for later */
@@ -1131,6 +1133,8 @@ static void *fmm_allocate_host_cpu(uint64_t MemorySizeInBytes,
 	if (mem == MAP_FAILED)
 		return NULL;
 
+	memset(mem, 0, MemorySizeInBytes);
+
 	pthread_mutex_lock(&cpuvm_aperture.fmm_mutex);
 	vm_obj = aperture_allocate_object(&cpuvm_aperture, mem, 0,
 				      MemorySizeInBytes, flags.Value);
diff --git a/projects/rocr-runtime/src/queues.c b/projects/rocr-runtime/src/queues.c
index c698c5ca6e..42c86a395f 100644
--- a/projects/rocr-runtime/src/queues.c
+++ b/projects/rocr-runtime/src/queues.c
@@ -323,6 +323,9 @@ static void *allocate_exec_aligned_memory_cpu(uint32_t size)
 
 	if (ptr == MAP_FAILED)
 		return NULL;
+
+	memset(ptr, 0, size);
+
 	return ptr;
 }