“A single malformed WAP Push SMS crashes com.android.phone on Android, dropping active calls (including emergency calls), with zero interaction from the victim.”
One text you never see kills your phone service. Thirty of them corrupt the SMS database so the phone crashes on every boot. A factory reset doesn’t save you because the carrier keeps redelivering the payload. Google got a working fix on day one and called it a non-security issue across three tickets and four engineers. The fix is a range check. One if statement.