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XCCDF
Guide to the Secure Configuration of Red Hat Enterprise Linux CoreOS 4
System Settings
GRUB2 bootloader configuration
Enable Kernel Page-Table Isolation (KPTI)
Enable Kernel Page-Table Isolation (KPTI)
An XCCDF Rule
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Enable Kernel Page-Table Isolation (KPTI)
High Severity
To enable Kernel page-table isolation, add the argument
pti=on
to all BLS (Boot Loader Specification) entries ('options' line) for the Linux operating system in
/boot/loader/entries/*.conf
.