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CVE-2020-27820

Published: 3 November 2021

A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).

From the Ubuntu security team

Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device removal. A privileged or physically proximate attacker could use this to cause a denial of service (system crash).

Priority

Low

CVSS 3 base score: 4.7

Status

Package Release Status
linux-oem-5.6
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.16~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
groovy Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
groovy Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
groovy Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal
Released (5.11.0-1028.31~20.04.1)
upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal
Released (5.11.0-1028.31~20.04.2)
upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
focal
Released (5.11.0-1028.31~20.04.1)
jammy Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
impish Does not exist

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
impish Does not exist

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Needed

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal Ignored
(was pending [5.11.0-1029.32~20.04.1] now end-of-life)
upstream
Released (5.16~rc1)
jammy Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
impish Does not exist

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

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

groovy Does not exist

hirsute Does not exist

xenial Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-110.124~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
impish Does not exist

upstream
Released (5.16~rc1)
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

precise Ignored
(was needs-triage ESM criteria)
jammy Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
impish Does not exist

upstream
Released (5.16~rc1)
precise Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty
Released (4.4.0-224.257~14.04.1)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Needed

upstream
Released (5.16~rc1)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

xenial Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Needed

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1078.81~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Needed

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1073.78~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
impish Does not exist

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1071.77~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

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

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

bionic Needed

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

hirsute Does not exist

xenial Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1060.68~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

bionic Needed

focal Does not exist

groovy Does not exist

hirsute Does not exist

xenial Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Needed

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1040.41~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Needed

focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.10.0-1053.55)
groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1040.41)
groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

precise Does not exist

trusty Does not exist

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

focal
Released (5.4.0-1071.76)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.16~rc1)
jammy Not vulnerable
(5.15.0-1002.2)
linux-ibm
Launchpad, Ubuntu, Debian
impish Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

focal
Released (5.4.0-1021.23)
upstream
Released (5.16~rc1)
jammy Not vulnerable
(5.15.0-1002.2)
linux-gcp-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.11.0-1029.33~20.04.3)
hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.14.0-1022.24)
hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
focal Ignored
(was needs-triage now end-of-life)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

impish Does not exist

focal
Released (5.13.0-1013.15~20.04.1)
upstream
Released (5.16~rc1)
jammy Does not exist

linux
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc1)
xenial
Released (4.4.0-224.257)
bionic Needed

focal
Released (5.4.0-110.124)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-28.31)
precise Ignored
(was needs-triage ESM criteria)
trusty Ignored
(was needed ESM criteria)
jammy Not vulnerable
(5.15.0-17.17)
linux-kvm
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

bionic Needed

focal
Released (5.4.0-1063.66)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1011.12)
xenial
Released (4.4.0-1105.114)
jammy Not vulnerable
(5.15.0-1002.2)
linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc1)
precise Does not exist

xenial
Released (4.4.0-1140.154)
bionic Needed

focal
Released (5.4.0-1073.78)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1012.13)
trusty Ignored
(was needed ESM criteria)
jammy Not vulnerable
(5.15.0-1002.4)
linux-azure
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc1)
precise Does not exist

xenial Ignored
(was needs-triage now end-of-life)
focal
Released (5.4.0-1078.81)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1013.15)
trusty Ignored
(was needed ESM criteria)
bionic Ignored
(superseded by linux-azure-5.3)
jammy Not vulnerable
(5.15.0-1001.2)
linux-gcp
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1073.78)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1013.16)
upstream
Released (5.16~rc1)
xenial Ignored
(was needs-triage now end-of-life)
jammy Not vulnerable
(5.15.0-1001.3)
linux-oracle
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

bionic Needed

focal
Released (5.4.0-1071.77)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1016.20)
xenial Ignored
(was needs-triage now end-of-life)
jammy Not vulnerable
(5.15.0-1001.3)
linux-raspi
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1060.68)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1016.18)
jammy Not vulnerable
(5.15.0-1002.2)
linux-riscv
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1011.12)
focal Ignored
(was needs-triage now end-of-life)
jammy Not vulnerable
(5.15.0-1004.4)
linux-gcp-5.13
Launchpad, Ubuntu, Debian
focal
Released (5.13.0-1013.16~20.04.1)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
focal
Released (5.13.0-1016.20~20.04.1)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.13.0-28.31~20.04.1)
impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.13.0-1012.13~20.04.1)
impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
focal
Released (5.13.0-1029.36)
jammy Does not exist

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

bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
xenial Ignored
(was needed ESM criteria)
jammy Does not exist

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

xenial Does not exist

bionic
Released (5.4.0-1021.23~18.04.1)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1078.81+cvm1.1)
impish Does not exist

upstream
Released (5.16~rc1)
jammy 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 Not vulnerable

upstream Needs triage

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 Not vulnerable

upstream Needs triage

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 Not vulnerable

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

impish Does not exist

jammy Does not exist

upstream Needs triage