Fix potential bug

DS-Homebrew · Nov 26, 2023 · f9c1fad · f9c1fad
1 parent bb1b7d2
commit f9c1fad
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/retail/bootloader/source/arm7/main.arm7.c b/retail/bootloader/source/arm7/main.arm7.c
@@ -1256,7 +1256,7 @@ int arm7_main(void) {
 	REG_SCFG_ROM = 0x703;
 
 	u32 clonebootFlag = 0;
-	fileRead((char*)&clonebootFlag, &romFile, (romSize <= baseRomSize) ? romSize : baseRomSize, sizeof(u32));
+	fileRead((char*)&clonebootFlag, &romFile, ((romSize-4) <= baseRomSize) ? (romSize-4) : baseRomSize, sizeof(u32));
 	bool usesCloneboot = (clonebootFlag == 0x16361);
 	if (usesCloneboot) {
 		dbg_printf("Cloneboot detected\n");

diff --git a/retail/bootloaderi/source/arm7/main.arm7.c b/retail/bootloaderi/source/arm7/main.arm7.c
@@ -1931,7 +1931,7 @@ int arm7_main(void) {
 		}
 
 		u32 clonebootFlag = 0;
-		fileRead((char*)&clonebootFlag, romFile, (romSize <= baseRomSize) ? romSize : baseRomSize, sizeof(u32));
+		fileRead((char*)&clonebootFlag, romFile, ((romSize-4) <= baseRomSize) ? (romSize-4) : baseRomSize, sizeof(u32));
 		const bool usesCloneboot = (clonebootFlag == 0x16361);
 		if (usesCloneboot) {
 			dbg_printf("Cloneboot detected\n");