Insufficient control flow in certain data structures for
some Intel(R) Processors with Intel Processor Graphics
may allow an unauthenticated user to potentially enable
information disclosure via local access
Products affected:
Intel CPU’s with Gen7, Gen7.5 and Gen9 Graphics.
Mitigation Summary
This patch provides mitigation for Gen9 hardware only.
Patches for Gen7 and Gen7.5 will be provided later.
Note that Gen8 is not impacted due to a previously
implemented workaround.
The mitigation involves using an existing hardware
feature to forcibly clear down all EU state at each
context switch.
Intel ID: PSIRT-TA-201910-001 CVEID: CVE-2019-14615
Summary of Vulnerability
Insufficient control flow in certain data structures for some Intel(R) Processors with Intel Processor Graphics may allow an unauthenticated user to potentially enable information disclosure via local access
Products affected:
Intel CPU’s with Gen7, Gen7.5 and Gen9 Graphics.
Mitigation Summary
This patch provides mitigation for Gen9 hardware only. Patches for Gen7 and Gen7.5 will be provided later. Note that Gen8 is not impacted due to a previously implemented workaround.
The mitigation involves using an existing hardware feature to forcibly clear down all EU state at each context switch.