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CVE-2022-21505

Published: 19 July 2022

Kernel lockdown bypass when UEFI secure boot is disabled / unavailable and IMA appraisal is enabled.

Notes

AuthorNote
amurray
This only allows to bypass kernel lockdown when secure boot is *disabled* - affects upstream kernels since 5.4
Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
trusty Needs triage

xenial Needs triage

bionic Needs triage

focal Needs triage

jammy Needs triage

upstream Needs triage

impish Ignored
(reached end-of-life)
kinetic Needs triage

Patches:
Introduced by

29d3c1c8dfe752c01b7115ecd5a3142b232a38e1

Fixed by -
linux-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Needs triage

bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.11)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-hwe-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.13)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-hwe-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
trusty Needs triage

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Needs triage

bionic Needs triage

focal Needs triage

jammy Needs triage

upstream Needs triage

impish Ignored
(reached end-of-life)
kinetic Needs triage

linux-aws
Launchpad, Ubuntu, Debian
trusty Needs triage

xenial Needs triage

bionic Needs triage

focal Needs triage

jammy Needs triage

upstream Needs triage

impish Ignored
(reached end-of-life)
kinetic Needs triage

linux-aws-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-aws-5.11)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-aws-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-aws-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Needs triage

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure
Launchpad, Ubuntu, Debian
trusty Needs triage

xenial Needs triage

bionic Ignored
(superseded by linux-azure-5.3)
focal Needs triage

jammy Needs triage

upstream Needs triage

impish Ignored
(reached end-of-life)
kinetic Needs triage

linux-azure-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-azure-5.11)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-fde
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Needs triage

upstream Needs triage

kinetic Does not exist

linux-bluefield
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-fips
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(out of standard support)
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Needs triage

bionic Ignored
(superseded by linux-gcp-5.3)
focal Needs triage

jammy Needs triage

upstream Needs triage

impish Ignored
(reached end-of-life)
kinetic Needs triage

linux-gcp-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gcp-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-gcp-5.11)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gcp-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gke
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(reached end of standard support)
bionic Does not exist

focal Needs triage

impish Does not exist

jammy Needs triage

upstream Needs triage

kinetic Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gke-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gke-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gkeop
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Needs triage

upstream Needs triage

kinetic Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-ibm
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Needs triage

upstream Needs triage

kinetic Needs triage

linux-ibm-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-intel-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-intel-iotg
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Needs triage

upstream Needs triage

kinetic Does not exist

linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-lowlatency
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Needs triage

upstream Needs triage

kinetic Needs triage

linux-oracle
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Needs triage

bionic Needs triage

focal Needs triage

jammy Needs triage

upstream Needs triage

impish Ignored
(reached end-of-life)
kinetic Needs triage

linux-oracle-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oracle-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-oracle-5.11)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oracle-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oem
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oem-5.10
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oem-5.14
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oem-5.17
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Needs triage

upstream Needs triage

kinetic Needs triage

linux-oem-osp1
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Ignored
(reached end-of-life)
jammy Needs triage

upstream Needs triage

kinetic Needs triage

linux-raspi2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(end of standard support)
bionic Needs triage

focal Ignored
(replaced by linux-raspi)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-raspi-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.8)
impish Ignored
(reached end-of-life)
jammy Needs triage

upstream Needs triage

kinetic Needs triage

linux-riscv-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.11)
impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(end of standard support)
bionic Needs triage

focal Does not exist

impish Does not exist

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-hwe-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-aws-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

jammy Does not exist

upstream Needs triage

focal Needs triage

kinetic Does not exist

linux-gcp-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-gke-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-oracle-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

upstream Needs triage

kinetic Does not exist

linux-azure-fde-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Needs triage

jammy Does not exist

kinetic Does not exist

upstream Needs triage