From b693308b33987972786ebb9fe8b8a713e8a28b14 Mon Sep 17 00:00:00 2001
From: Gaurav Singh <gaurav1086@gmail.com>
Date: Sun, 12 Jan 2020 08:34:00 -0500
Subject: [PATCH] Unsigned int cannott be < 0

---
 tensorflow/c/c_api.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tensorflow/c/c_api.cc b/tensorflow/c/c_api.cc
index dbb5c760f8e..97846af6408 100644
--- a/tensorflow/c/c_api.cc
+++ b/tensorflow/c/c_api.cc
@@ -1344,6 +1344,10 @@ void TF_OperationGetAttrString(TF_Operation* oper, const char* attr_name,
         InvalidArgument("Attribute '", attr_name, "' is not a string");
     return;
   }
+  if (max_length == 0) {
+    InvalidArgument("Attribute '", max_length, "' is zero");
+    return;
+  }
   const auto& s = attr->s();
   std::memcpy(value, s.data(), std::min<size_t>(s.length(), max_length));
 }