From 349771026e1eb80cab7a19ceb8b80aa6d1bb3184 Mon Sep 17 00:00:00 2001
From: Tom Most <twm@freecog.net>
Date: Fri, 1 Apr 2022 20:47:59 -0700
Subject: [PATCH] Address review feedback

Upstream-Status: Backport [https://github.com/twisted/twisted/commit/2bbd6c89110f0d44d2bb109c14d787f65bca9df8]
CVE: CVE-2022-24801
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
 src/twisted/web/http.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/twisted/web/http.py b/src/twisted/web/http.py
index 81df437..4a2ce1d 100644
--- a/src/twisted/web/http.py
+++ b/src/twisted/web/http.py
@@ -420,7 +420,7 @@ def _ishexdigits(b: bytes) -> bool:
     for c in b:
         if c not in b"0123456789abcdefABCDEF":
             return False
-    return bool(b)
+    return b != b""
 
 
 def _hexint(b: bytes) -> int: