A TOCTOU (Time-Of-Check to Time-Of-Use) in the graphics interface may allow an attacker to load registers repeatedly creating a race condition potentially leading to a loss of integrity.
Exploitability
AV:LAC:HAT:NPR:HUI:NVulnerable System
VC:LVI:LVA:LSubsequent System
SC:NSI:NSA:N1.8/CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:NOther