From 6daf378492ce8ec95129bd22135eeaae7d31f01f Mon Sep 17 00:00:00 2001
From: Erica Marigold <hi@devcomp.xyz>
Date: Tue, 7 Jan 2025 15:53:26 +0000
Subject: [PATCH] fix(inflate): byte boundary aligning underflow

---
 lib/inflate.luau | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/inflate.luau b/lib/inflate.luau
index 1c49ee0..36d6235 100644
--- a/lib/inflate.luau
+++ b/lib/inflate.luau
@@ -313,10 +313,10 @@ end
 --- Processes an uncompressed block
 local function inflateUncompressedBlock(d: Data)
 	-- Align to byte boundary
-	while d.bitcount > 8 do
-		d.sourceIndex -= 1
-		d.bitcount -= 8
-	end
+	local bytesToMove = d.bitcount // 8
+	d.sourceIndex -= bytesToMove
+	d.bitcount = 0
+	d.tag = 0
 
 	-- Read block length and its complement
 	local length = buffer.readu8(d.source, d.sourceIndex + 1)