Kernel Page Table Isolation / reported 'kernel memory leaks', 'processor design flaw'

Solution Verified - Updated -

Environment

Red Hat Products

Issue

I’m concerned about recent articles describing flaws with microprocessors.

I’ve read about an issue that affects computer processors and the kernel. What is Red Hat doing about this?

Resolution

Red Hat Product Security is aware of reports on the Internet related to CPU (microprocessor) issue and the Linux kernel. Red Hat Product Security is investigating the potential impact to Red Hat products. More information will be forthcoming as our analysis of the issue continues.

Red Hat Engineering has been involved in the conversation around the recent upstream Linux kernel Page Table Isolation (PTI, previously known as KAISER or KPTI) effort. Red Hat is actively engaged in understanding what changes might need to be made to our kernels to appropriately react to any issue the PTI patches address.

If you have further questions, please contact Red Hat Product Security at secalert@redhat.com.

Root Cause

Numerous Internet outlets are reporting on a possible flaw with CPUs and operating system software.

This solution is part of Red Hat’s fast-track publication program, providing a huge library of solutions that Red Hat engineers have created while supporting our customers. To give you the knowledge you need the instant it becomes available, these articles may be presented in a raw and unedited form.

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