From ad850e50b10f75df541dad5e8bf1ff506be5befa Mon Sep 17 00:00:00 2001
From: Eric Hoey <121978037+A-Green-Spoon@users.noreply.github.com>
Date: Wed, 11 Jun 2025 17:35:49 -0400
Subject: [PATCH] prevent OOB write for BGM fix in grotto mixed pools (#5572)

---
 soh/soh/Enhancements/randomizer/randomizer_entrance.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/soh/soh/Enhancements/randomizer/randomizer_entrance.c b/soh/soh/Enhancements/randomizer/randomizer_entrance.c
index faec117eb..e32223124 100644
--- a/soh/soh/Enhancements/randomizer/randomizer_entrance.c
+++ b/soh/soh/Enhancements/randomizer/randomizer_entrance.c
@@ -253,7 +253,9 @@ void Entrance_Init(void) {
             for (s16 i = 0; i < 4; i++) {
                 // Zero out the bit in the field which tells the game to keep playing
                 // background music for all four scene setups at each index
-                gEntranceTable[override + i].field &= ~ENTRANCE_INFO_CONTINUE_BGM_FLAG;
+                if (override + i < ENTRANCE_TABLE_SIZE) {
+                    gEntranceTable[override + i].field &= ~ENTRANCE_INFO_CONTINUE_BGM_FLAG;
+                }
             }
         }
     }