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What is Kernel Page Table Isolation mean?
Kernel page-table isolation (KPTI or PTI, previously called KAISER) is a Linux kernel feature that mitigates the Meltdown security vulnerability (affecting mainly Intel's x86 CPUs) and improves kernel hardening against attempts to bypass kernel address space layout randomization (KASLR). It works by better isolating user space and kernel space memory. KPTI was merged into Linux kernel version 4.15, and backported to Linux kernels 4.14.11, 4.9.75, and 4.4.110. Windows and macOS released similar updates. KPTI does not address the related Spectre vulnerability.
reference nanPosted on 18 Sep 2024, this text provides information on Miscellaneous in Computing related to Computing. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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