Your submission was sent successfully! Close

CVE-2021-39698

Published: 16 March 2022

In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-185125206References: Upstream kernel

From the Ubuntu security team

It was discovered that a race condition existed in the poll implementation in the Linux kernel, resulting in a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
trusty Ignored
(was needed ESM criteria)
xenial Ignored
(was needed ESM criteria)
impish
Released (5.13.0-37.42)
upstream
Released (5.16~rc5)
bionic
Released (4.15.0-169.177)
focal
Released (5.4.0-100.113)
jammy Not vulnerable
(5.15.0-17.17)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 42288cb44c4b5fff7653bc392b583a2b8bd6a8c0
Introduced by

f5cb779ba16334b45ba8946d6bfa6d9834d1527f

Fixed by a880b28a71e39013e357fd3adccd1d8a31bc69a8
Introduced by

d80e731ecab420ddcb79ee9d0ac427acbc187b4b

Fixed by 9537bae0da1f8d1e2361ab6d0479e8af7824e160
Introduced by

2c14fa838cbefc23cf1c73ca167ed85b274b2913

Fixed by 363bee27e25804d8981dd1c025b4ad49dc39c530
Introduced by

2c14fa838cbefc23cf1c73ca167ed85b274b2913

Fixed by 50252e4b5e989ce64555c7aef7516bdefc2fea72
linux-aws
Launchpad, Ubuntu, Debian
trusty Ignored
(was needed ESM criteria)
xenial Ignored
(was needed ESM criteria)
upstream
Released (5.16~rc5)
bionic
Released (4.15.0-1121.129)
focal
Released (5.4.0-1066.69)
impish
Released (5.13.0-1019.21)
jammy Not vulnerable
(5.15.0-1002.4)
linux-aws-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-1120.128~16.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
trusty
Released (4.15.0-1131.144~14.04.1)
xenial
Released (4.15.0-1131.144~16.04.1)
upstream
Released (5.16~rc5)
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1070.73)
impish
Released (5.13.0-1021.24)
jammy Not vulnerable
(5.15.0-1001.2)
linux-azure-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-1116.130~16.04.1)
focal
Released (5.4.0-1065.69)
impish
Released (5.13.0-1021.25)
upstream
Released (5.16~rc5)
trusty Does not exist

bionic Ignored
(superseded by linux-gcp-5.3)
jammy Not vulnerable
(5.15.0-1001.3)
linux-gcp-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-169.177~16.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

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

impish Does not exist

jammy Does not exist

linux-intel-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
xenial Ignored
(was needed ESM criteria)
impish
Released (5.13.0-1018.19)
upstream
Released (5.16~rc5)
trusty Does not exist

bionic
Released (4.15.0-1107.109)
focal
Released (5.4.0-1056.58)
jammy Not vulnerable
(5.15.0-1002.2)
linux-lts-xenial
Launchpad, Ubuntu, Debian
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.16~rc5)
xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

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

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

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

linux-oem-5.10
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-1087.95~16.04.1)
impish
Released (5.13.0-1023.28)
upstream
Released (5.16~rc5)
trusty Does not exist

bionic
Released (4.15.0-1087.95)
focal
Released (5.4.0-1064.68)
jammy Not vulnerable
(5.15.0-1001.3)
linux-oracle-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.13.0-1021.24~20.04.1)
impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

linux-aws-5.0
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-aws-5.13
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.13.0-1019.21~20.04.1)
impish Does not exist

jammy Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1066.69~18.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1131.144)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1070.73~18.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-azure-5.8
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-azure-edge
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-azure-fde
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Needed

jammy Needs triage

linux-bluefield
Launchpad, Ubuntu, Debian
focal
Released (5.4.0-1028.31)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1035.40)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-fips
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
xenial Ignored
(was needed ESM criteria)
trusty Does not exist

bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic
Released (4.15.0-1116.130)
focal Does not exist

impish Does not exist

jammy Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
focal
Released (5.13.0-1021.25~20.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1065.69~18.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-gcp-5.8
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-gke
Launchpad, Ubuntu, Debian
focal
Released (5.4.0-1063.66)
upstream
Released (5.16~rc5)
trusty Does not exist

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

impish Does not exist

jammy Not vulnerable
(5.15.0-1002.2)
linux-gke-5.0
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-gke-5.3
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1063.66~18.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1034.35~18.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

linux-hwe-5.11
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-hwe-5.13
Launchpad, Ubuntu, Debian
focal
Released (5.13.0-37.42~20.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic
Released (5.4.0-100.113~18.04.1)
jammy Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-hwe-edge
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-ibm
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal
Released (5.4.0-1015.16)
jammy Not vulnerable
(5.15.0-1002.2)
linux-ibm-5.4
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic
Released (5.4.0-1015.16~18.04.1)
jammy Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-oracle-5.13
Launchpad, Ubuntu, Debian
focal
Released (5.13.0-1025.30~20.04.1)
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-oracle-5.4
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic
Released (5.4.0-1064.68~18.04.1)
jammy Does not exist

linux-oracle-5.8
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-raspi
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
impish
Released (5.13.0-1022.24)
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1053.60)
jammy Not vulnerable
(5.15.0-1002.2)
linux-raspi-5.4
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic
Released (5.4.0-1053.60~18.04.1)
jammy Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Ignored
(end of standard support)
focal Ignored
(replaced by linux-raspi)
impish Does not exist

bionic
Released (4.15.0-1103.110)
jammy Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-riscv
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.8)
impish
Released (5.13.0-1017.19)
jammy Not vulnerable
(5.15.0-1004.4)
linux-riscv-5.8
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
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

linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (5.16~rc5)
trusty Does not exist

xenial Ignored
(end of standard support)
bionic
Released (4.15.0-1120.129)
focal Does not exist

impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1034.35)
impish Does not exist

upstream
Released (5.16~rc5)
jammy Not vulnerable
(5.15.0-1001.2)
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)
impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

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

xenial Does not exist

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

impish Does not exist

upstream
Released (5.16~rc5)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

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

upstream
Released (5.16~rc5)
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
(5.15.0-22.22)
upstream
Released (5.16~rc5)
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
(5.17.0-1003.3)
upstream
Released (5.16~rc5)
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
(5.15.0-1004.6)
upstream
Released (5.16~rc5)
linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

focal Not vulnerable
(5.15.0-1003.5~20.04.1)
upstream
Released (5.16~rc5)
linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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 Not vulnerable

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage