Core Escalation: Unleashing the Power of Cross-Core Attacks on Heterogeneous System

As features of smartphones continue to advance, their SoCs become increasingly complex. In addition to the Application Processor (AP), the SoC also runs other cores such as baseband, camera, sensor hub and low power management module. As a result, permission control and security boundary management cannot only apply to a single processor, but require thoughtful consideration of all running processors. Exception level (EL) based solutions (e.g., ARM Trustzone) on a single processor are facing more and more threats from other …

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