Insufficient access control in a subsystem for Intel (R) processor graphics in 6th 7th 8th and 9th Generation Intel(R) Core(TM) Processor Families; Intel(R) Pentium(R) Processor J N Silver and Gold Series; Intel(R) Celeron(R) Processor J N G3900 and G4900 Series; Intel(R) Atom(R) Processor A and E3900 Series; Intel(R) Xeon(R) Processor E3-1500 v5 and v6 E-2100 and E-2200 Processor Families; Intel(R) Graphics Driver for Windows before 26.20.100.6813 (DCH) or 26.20.100.6812 and before 21.20.x.5077 (aka15.45.5077) i915 Linux Driver for Intel(R) Processor Graphics before versions 5.4-rc7 5.3.11 4.19.84 4.14.154 4.9.201 4.4.201 may allow an authenticated user to potentially enable escalation of privilege via local access.