tensorflow/CVE-2021-29576.patch

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From 63c6a29d0f2d692b247f7bf81f8732d6442fad09 Mon Sep 17 00:00:00 2001
From: Mihai Maruseac <mihaimaruseac@google.com>
Date: Wed, 5 May 2021 18:07:02 -0700
Subject: [PATCH] Add missing validation, prevent heap OOB
PiperOrigin-RevId: 372246723
Change-Id: I1a454a643810e77d7d14821b342098c56a09fbbf
---
tensorflow/core/kernels/pooling_ops_3d.cc | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tensorflow/core/kernels/pooling_ops_3d.cc b/tensorflow/core/kernels/pooling_ops_3d.cc
index 7d133b66a1ebd..9da2d62b0a21d 100644
--- a/tensorflow/core/kernels/pooling_ops_3d.cc
+++ b/tensorflow/core/kernels/pooling_ops_3d.cc
@@ -693,6 +693,7 @@ class MaxPooling3dGradGradOp : public OpKernel {
Pool3dParameters params{context, ksize_, stride_,
padding_, data_format_, tensor_in.shape()};
+ if (!context->status().ok()) return; // params is invalid
Tensor* output = nullptr;
OP_REQUIRES_OK(context, context->forward_input_or_allocate_output(
@@ -710,6 +711,17 @@ class MaxPooling3dGradGradOp : public OpKernel {
context, out_grad_backprop.NumElements() > 0,
errors::InvalidArgument("received empty tensor out_grad_backprop: ",
out_grad_backprop.DebugString()));
+ OP_REQUIRES(context,
+ tensor_in.NumElements() == out_grad_backprop.NumElements(),
+ errors::InvalidArgument("tensor_in and out_grad_backprop must "
+ "have same number of elements, got <",
+ tensor_in.DebugString(), "> and <",
+ out_grad_backprop.DebugString(), ">"));
+ OP_REQUIRES(
+ context, tensor_out.NumElements() == output->NumElements(),
+ errors::InvalidArgument(
+ "tensor_out and output must have same number of elements, got <",
+ tensor_out.DebugString(), "> and <", output->DebugString(), ">"));
LaunchMaxPooling3dGradGradOp<Device, T>::launch(
context, params, tensor_in, tensor_out, out_grad_backprop, output);