M CHANGES → CHANGES

@@ -95,6 +95,7 @@ - GBA Memory: Fix open bus from IWRAM (fixes mgba.io/i/1575)
 Other fixes:
  - 3DS: Fix screen darkening (fixes mgba.io/i/1562)
  - Core: Fix uninitialized memory issues with graphics caches
+ - Core: Return null for out of bounds cached tile VRAM querying
  - Vita: Fix analog controls (fixes mgba.io/i/1554)
  - Qt: Fix fast forward mute being reset (fixes mgba.io/i/1574)
  - Qt: Fix scrollbar arrows in memory view (fixes mgba.io/i/1558)

M src/core/tile-cache.c → src/core/tile-cache.c

@@ -281,5 +281,9 @@ return &cache->palette[paletteId << (1 << cache->bpp)];
 }
 
 const uint16_t* mTileCacheGetVRAM(struct mTileCache* cache, unsigned tileId) {
+	unsigned tiles = mTileCacheSystemInfoGetMaxTiles(cache->sysConfig);
+	if (tileId >= tiles) {
+		return NULL;
+	}
 	return &cache->vram[tileId << (cache->bpp + 2)];
 }

M src/platform/qt/AssetView.cpp → src/platform/qt/AssetView.cpp

@@ -66,6 +66,9 @@ updateTiles(true);
 }
 
 void AssetView::compositeTile(const void* tBuffer, void* buffer, size_t stride, size_t x, size_t y, int depth) {
+	if (!tBuffer) {
+		return;
+	}
 	const uint8_t* tile = static_cast<const uint8_t*>(tBuffer);
 	uint8_t* pixels = static_cast<uint8_t*>(buffer);
 	size_t base = stride * y + x;