Operating Systems Security - Aiming at the problem of Disturbance Error of dynamic random access memory (DRAM) on domestic NeoKylin operating system, this article analyzes the reasons for rowhammer attacks, proposes a rowhammer attack scheme based on domestic NeoKylin operating system, and designs a tool to implement the attack. The results of the attack on domestic NeoKylin operating system demonstrate that this attack scheme can achieve bit flips by rapid and repeated access (hammer) to the neighboring rows of the target cell.