The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.
Affected Platforms
Avaya Aura Application Enablement ServicesAvaya Aura System PlatformCanonical Ubuntu LinuxAvaya Aura Session ManagerRedhat Enterprise Linux EusAvaya Aura System ManagerAvaya Voice PortalRedhat Enterprise Linux WorkstationRedhat Enterprise Linux DesktopRedhat Enterprise Linux Server