From 57f4bfc98cc3c0299cd1f478d971257a0339ecc7 Mon Sep 17 00:00:00 2001
From: Yu Feng <feyu@google.com>
Date: Mon, 11 Dec 2023 08:16:16 -0800
Subject: [PATCH] fix a msan error, use before init.

PiperOrigin-RevId: 589829765
---
 tensorflow/compiler/tf2xla/kernels/matmul_op.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tensorflow/compiler/tf2xla/kernels/matmul_op.cc b/tensorflow/compiler/tf2xla/kernels/matmul_op.cc
index 3df57005c9ad29..5a2a6e781cd65d 100644
--- a/tensorflow/compiler/tf2xla/kernels/matmul_op.cc
+++ b/tensorflow/compiler/tf2xla/kernels/matmul_op.cc
@@ -37,7 +37,10 @@ constexpr std::array<DataType, 10> kMatmulTypes = {
 class MatMulOp : public XlaOpKernel {
  public:
   explicit MatMulOp(OpKernelConstruction* ctx, bool is_sparse = false)
-      : XlaOpKernel(ctx), is_sparse_(is_sparse) {
+      : XlaOpKernel(ctx),
+        is_sparse_(is_sparse),
+        grad_a_(false),
+        grad_b_(false) {
     OP_REQUIRES_OK(ctx, ctx->GetAttr("transpose_a", &transpose_a_));
     OP_REQUIRES_OK(ctx, ctx->GetAttr("transpose_b", &transpose_b_));
     if (!is_sparse) {