In Android before 2018-04-05 or earlier security patch level on Qualcomm Small Cell SoC, Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear FSM9055, IPQ4019, MDM9206, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, improper access control in system call leads to unauthorized access.