About: Kernel page-table isolation

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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.

Attributes	Values
rdfs:label	Kernel page-table isolation (en)
rdfs:comment	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. (en)
dbp:wikiPageUsesTemplate	dbt:Redirect dbt:Reflist
Subject	Virtual memory X86 architecture Hardware bugs Linux kernel features
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Kernel_page-table_isolation?oldid=1021868441&ns=0
Wikipage page ID	56160987 (xsd:integer)
page length (characters) of wiki page	14277 (xsd:nonNegativeInteger)
Wikipage revision ID	1021868441 (xsd:integer)
Link from a Wikipage to another Wikipage	Skylake (microarchitecture) X86 ARM Cortex-A75 Address space layout randomization Advanced Micro Devices Backporting Broadwell (microarchitecture) Virtual memory X86 architecture Central processing unit Hardware bugs Linux kernel features Page table PostgreSQL Linux kernel List of Intel processors Phoronix Test Suite Coffee Lake Task switching Microsoft Windows Spectre (security vulnerability) System call Broadwell (microarchitecture) Intel Interrupt Translation lookaside buffer User space and kernel space Meltdown (security vulnerability) MacOS Redis Side-channel attack
has abstract	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. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Kernel_page-table_isolation
is Wikipage redirect of	Page-table isolation Page table isolation KAISER KPTI Kernel Address Isolation to have Side-channels Efficiently Removed Kernel Page Table Isolation Kernel address isolation to have side-channels efficiently removed Kernel page table isolation Kpti
is Link from a Wikipage to another Wikipage of	Address space layout randomization KAISER KPTI KPTI (disambiguation) Kernel Address Isolation to have Side-channels Efficiently Removed Kernel Page Table Isolation Kernel address isolation to have side-channels efficiently removed Kernel page table isolation Kpti Meltdown (security vulnerability) Kaiser (disambiguation)
is foaf:primaryTopic of	http://en.wikipedia.org/wiki/Kernel_page-table_isolation

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