In the process of globalization, heterogeneous SoCs play an important role in an embedded application, security aspects of such systems are crucial. The system is susceptible to many attacks out of which we focus on the run-time software attacks which causes memory corruption. In this scheme we propose a software-based solution to secure the system integrity by providing Information Flow Tracking (IFT) technique to track the spurious data during run-time and preventing buffer overflow attacks. This scheme is implemented on RISC-V and protects bare-metal applications against memory corruption by adding tag bits to the untrusted data inputs.