Buffer overflows in embedded software can be tricky to diagnose because the corrupted variable often appears unrelated to the actual overflow source. A practical 7-step technique uses the linker map file to identify which variable sits adjacent in memory to the corrupted one, quickly pinpointing the overflowing buffer. A real-world example shows how a bytesToSend array was overwriting a boolean ScrState variable by just 1 byte, flipping it from true to false.
