From 500a238028bdebe123b502b07769578b5f0e8a3a Mon Sep 17 00:00:00 2001
From: Inada Naoki <songofacandy@gmail.com>
Date: Tue, 24 May 2022 19:46:51 +0900
Subject: Fix Unpacker max_buffer_length handling (#506)

---
 msgpack/fallback.py | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'msgpack/fallback.py')

diff --git a/msgpack/fallback.py b/msgpack/fallback.py
index 5f215e9..f560c7b 100644
--- a/msgpack/fallback.py
+++ b/msgpack/fallback.py
@@ -423,6 +423,8 @@ class Unpacker(object):
 
         # Read from file
         remain_bytes = -remain_bytes
+        if remain_bytes + len(self._buffer) > self._max_buffer_size:
+            raise BufferFull
         while remain_bytes > 0:
             to_read_bytes = max(self._read_size, remain_bytes)
             read_data = self.file_like.read(to_read_bytes)
-- 
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