9a3bb81337
## Problem `drawBmp()` allocates two row buffers via `malloc()` but doesn't check if allocations succeed. On low memory, this causes a crash when the NULL pointers are dereferenced. ## Fix Add NULL check after both `malloc()` calls. If either fails, log error and return early. Changed `lib/GfxRenderer/GfxRenderer.cpp`. ## Test - Defensive addition only - no logic changes - Manual device testing appreciated