community/security/cve_patch/mssa-2021-002.patch

From e0cbe113745a38be7b3afa0dff63a819e4490005 Mon Sep 17 00:00:00 2001
From: lzk <liuzhongkai2@huawei.com>
Date: Fri, 21 May 2021 01:11:07 -0700
Subject: [PATCH] div 0 bug fix

---
 .../kernel_compiler/cpu/nnacl/infer/space_to_batch_infer.c  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/space_to_batch_infer.c b/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/space_to_batch_infer.c
index c19082141d..e1b73101b3 100644
--- a/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/space_to_batch_infer.c
+++ b/mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/infer/space_to_batch_infer.c
@@ -51,6 +51,12 @@ int SpaceToBatchInferShape(const TensorC *const *inputs, size_t inputs_size, Ten
     block_w = block_shape[1];
   }
 
+  if (block_shape[0] == 0) {
+    return NNACL_ERR;
+  }
+  if (block_w == 0) {
+    return NNACL_ERR;
+  }
   outputs[0]->shape_[kNHWC_N] = input->shape_[kNHWC_N] * (block_shape[0] * block_w);
   outputs[0]->shape_[kNHWC_H] = (input->shape_[kNHWC_H] + paddings[0] + paddings[1]) / block_shape[0];
   outputs[0]->shape_[kNHWC_W] = (input->shape_[kNHWC_W] + padding_left + padding_right) / block_w;
-- 
2.17.1