From 6fcd5d0aff278d0de2244854a0515a610ea1358a Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Sat, 15 Jun 2024 17:42:56 +1000
Subject: [PATCH] GzippedFileReader: Don't write OOB in last chunk

zlib_indexed can write the full span to the block, despite the length being shorter. This code can die in a fire.

Closes #11398.
---
 pcsx2/CDVD/GzippedFileReader.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pcsx2/CDVD/GzippedFileReader.cpp b/pcsx2/CDVD/GzippedFileReader.cpp
index 8791d2a69d..ee2e5e2b91 100644
--- a/pcsx2/CDVD/GzippedFileReader.cpp
+++ b/pcsx2/CDVD/GzippedFileReader.cpp
@@ -223,7 +223,7 @@ ThreadedFileReader::Chunk GzippedFileReader::ChunkForOffset(u64 offset)
 	else
 	{
 		chunk.chunkID = static_cast<s64>(offset) / m_index->span;
-		chunk.length = static_cast<u32>(std::min<u64>(m_index->uncompressed_size - offset, m_index->span));
+		chunk.length = m_index->span;
 		chunk.offset = static_cast<u64>(chunk.chunkID) * m_index->span;
 	}