From c30b0d9d5930bc2852964f692f8fceba35ed0d91 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dariusz=20Dzia=C5=82ak?= <darek@dzialak.pl>
Date: Mon, 15 Nov 2021 11:20:23 +0100
Subject: [PATCH] Fix problem that may happen after interrupted chunk-encoding
 request

more in bug report: https://github.com/benoitc/gunicorn/issues/2684

Fixes #2684
---
 gunicorn/http/body.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gunicorn/http/body.py b/gunicorn/http/body.py
index afde3685..c6e458f8 100644
--- a/gunicorn/http/body.py
+++ b/gunicorn/http/body.py
@@ -67,7 +67,10 @@ class ChunkedReader(object):
             # Remove \r\n after chunk
             rest = rest[size:]
             while len(rest) < 2:
-                rest += unreader.read()
+                new_data = unreader.read()
+                if not new_data:
+                    break
+                rest += new_data
             if rest[:2] != b'\r\n':
                 raise ChunkMissingTerminator(rest[:2])
             (size, rest) = self.parse_chunk_size(unreader, data=rest[2:])