From 245f0e2271693d7a301c945a7791691a720ab1b3 Mon Sep 17 00:00:00 2001
From: CasualPokePlayer <50538166+CasualPokePlayer@users.noreply.github.com>
Date: Wed, 11 Sep 2024 16:24:13 -0700
Subject: [PATCH] Don't invoke UB with possibly unaligned memory

---
 .../RetroAchievements/RetroAchievements.GameVerification.cs    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/BizHawk.Client.EmuHawk/RetroAchievements/RetroAchievements.GameVerification.cs b/src/BizHawk.Client.EmuHawk/RetroAchievements/RetroAchievements.GameVerification.cs
index b79dfc2fe3..46aa47f543 100644
--- a/src/BizHawk.Client.EmuHawk/RetroAchievements/RetroAchievements.GameVerification.cs
+++ b/src/BizHawk.Client.EmuHawk/RetroAchievements/RetroAchievements.GameVerification.cs
@@ -431,7 +431,8 @@ namespace BizHawk.Client.EmuHawk
 					return true;
 				}
 
-				var programId = MemoryMarshal.GetReference(Util.UnsafeSpanFromPointer<ulong>(ptr: optional_program_id, count: 1));
+				var programId = MemoryMarshal.Read<ulong>(
+					Util.UnsafeSpanFromPointer<byte>(ptr: optional_program_id, count: 8));
 
 				FirmwareID seeddbFWID = new("3DS", "seeddb");
 				using BinaryReader seeddb = new(GetFirmware(seeddbFWID));