From d53e75c30915f9a38af58aa8410fff0c1f748216 Mon Sep 17 00:00:00 2001
From: Alex Kocharin <alex@kocharin.ru>
Date: Wed, 8 Jun 2022 19:53:51 +0300
Subject: [PATCH] Reject a window size of 256 bytes if not using the zlib
 wrapper.

https://github.com/madler/zlib/commit/049578f0a1849f502834167e233f4c1d52ddcbcc
---
 lib/zlib/deflate.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/zlib/deflate.js b/lib/zlib/deflate.js
index 0f9bbad..856be4f 100644
--- a/lib/zlib/deflate.js
+++ b/lib/zlib/deflate.js
@@ -1329,7 +1329,7 @@ const deflateInit2 = (strm, level, method, windowBits, memLevel, strategy) => {
 
   if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method !== Z_DEFLATED ||
     windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
-    strategy < 0 || strategy > Z_FIXED) {
+    strategy < 0 || strategy > Z_FIXED || (windowBits === 8 && wrap !== 1)) {
     return err(strm, Z_STREAM_ERROR);
   }