Fix crash when using REMOUNT command on drive beyond D:

schellingb · May 15, 2024 · 640452c · 640452c
1 parent 3c0d751
commit 640452c
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/dosbox_pure_libretro.cpp b/dosbox_pure_libretro.cpp
@@ -959,8 +959,9 @@ static void DBP_Remount(char drive1, char drive2)
 	else
 	{
 		// Swap registration with BIOS/CMOS
-		if (imageDisk*& dsk = imageDiskList[drive1-'A'])
+		if (drive1 < 'A'+MAX_DISK_IMAGES && imageDiskList[drive1-'A'])
 		{
+			imageDisk*& dsk = imageDiskList[drive1-'A'];
 			if (drive2 < 'A'+MAX_DISK_IMAGES) imageDiskList[drive2-'A'] = dsk;
 			else if (!dynamic_cast<fatDrive*>(Drives[drive1-'A'])) delete dsk;
 			dsk = NULL;