From 991dbeff5326ae203c6c9a3ed74e92278c0b37c6 Mon Sep 17 00:00:00 2001
From: Dmitry Borisov <di.sean@protonmail.com>
Date: Fri, 3 May 2024 20:03:51 +0600
Subject: [PATCH] [ISAPNP] Fix the truncation of 32-bit configuration I/O reads

CORE-18562
---
 drivers/bus/isapnp/hardware.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/isapnp/hardware.c b/drivers/bus/isapnp/hardware.c
index 105fa0d8dbb..a42598e3e6c 100644
--- a/drivers/bus/isapnp/hardware.c
+++ b/drivers/bus/isapnp/hardware.c
@@ -118,7 +118,7 @@ ReadDoubleWord(
     _In_ PUCHAR ReadDataPort,
     _In_ UCHAR Address)
 {
-    return ((ReadWord(ReadDataPort, Address) << 8) |
+    return ((ReadWord(ReadDataPort, Address) << 16) |
             (ReadWord(ReadDataPort, Address + 2)));
 }