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CVE-2022-42703

Published: 9 October 2022

mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.

From the Ubuntu Security Team

Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA mappings in some situations, leading to potential data structure reuse. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

High

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-200.211)
focal
Released (5.4.0-132.148)
jammy
Released (5.15.0-56.62)
kinetic Not vulnerable
(5.19.0-18.18)
trusty Ignored
(was needed ESM criteria)
upstream
Released (6.0~rc4)
xenial
Released (4.4.0-235.269)
Patches:
Introduced by

7a3ef208e662f4b63d43a23f61a64a129c525bbc

Fixed by 2555283eb40df89945557273121e9393ef9b542b
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1146.158)
focal
Released (5.4.0-1089.97)
jammy
Released (5.15.0-1026.30)
kinetic Not vulnerable
(5.19.0-1007.7)
trusty
Released (4.4.0-1114.120)
upstream
Released (6.0~rc4)
xenial
Released (4.4.0-1152.167)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Ignored
(superseded by linux-aws-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-aws-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.15)
xenial Does not exist

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

focal
Released (5.15.0-1026.30~20.04.2)
jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.4)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1089.97~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

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

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.11)
xenial Does not exist

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

focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial
Released (4.15.0-1146.158~16.04.2)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1095.101)
jammy Needed

kinetic Not vulnerable
(5.19.0-1006.6)
trusty Ignored
(was needed ESM criteria)
upstream
Released (6.0~rc4)
xenial Ignored
(was needed ESM criteria)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Needed

focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Ignored
(superseded by linux-azure-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-azure-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.15)
xenial Does not exist

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

focal Needed

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.4)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1095.101~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

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

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.11)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal
Released (5.4.0-1095.101+cvm1.1)
jammy Needed

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Not vulnerable
(5.15.0-1019.24~20.04.1.1)
jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal
Released (5.4.0-1050.56)
jammy Needed

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
bionic Needed

focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Does not exist

jammy Does not exist

trusty Ignored
(out of standard support)
upstream
Released (6.0~rc4)
xenial Ignored
(out of standard support)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1093.102)
jammy
Released (5.15.0-1025.32)
kinetic Not vulnerable
(5.19.0-1006.6)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial
Released (4.15.0-1141.157~16.04.2)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1141.157)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Ignored
(superseded by linux-gcp-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-gcp-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.15)
xenial Does not exist

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

focal
Released (5.15.0-1025.32~20.04.2)
jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.4)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1093.102~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

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

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.11)
xenial Does not exist

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

focal
Released (5.4.0-1087.94)
jammy
Released (5.15.0-1023.28)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Needs triage

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gke-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal
Released (5.15.0-1023.28~20.04.2)
jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gke-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gke-5.4)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal
Released (5.4.0-1057.61)
jammy
Released (5.15.0-1011.15)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial
Released (4.15.0-200.211~16.04.2)
linux-hwe-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

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

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-hwe-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.15)
xenial Does not exist

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

focal
Released (5.15.0-56.62~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-132.148~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

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

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.11)
xenial Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Ignored
(superseded by linux-hwe)
linux-ibm
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1037.42)
jammy
Released (5.15.0-1021.24)
kinetic Not vulnerable
(5.19.0-1006.6)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1037.42~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

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

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Does not exist

jammy
Released (5.15.0-1021.26)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Needed

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1132.137)
focal
Released (5.4.0-1079.85)
jammy
Released (5.15.0-1024.29)
kinetic Not vulnerable
(5.19.0-1006.6)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial
Released (4.4.0-1115.125)
linux-lowlatency
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy
Released (5.15.0-56.62)
kinetic Not vulnerable
(5.19.0-1005.5)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal
Released (5.15.0-56.62~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Does not exist

jammy Does not exist

trusty
Released (4.4.0-235.269~14.04.1)
upstream
Released (6.0~rc4)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Needs triage

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

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

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Ignored
(superseded by linux-oem-5.14)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oem-5.14)
xenial Does not exist

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

focal Needed

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Does not exist

jammy Needed

kinetic Needs triage

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

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

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1111.122)
focal
Released (5.4.0-1087.96)
jammy
Released (5.15.0-1025.31)
kinetic Not vulnerable
(5.19.0-1006.6)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial
Released (4.15.0-1111.122~16.04.2)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Ignored
(superseded by linux-oracle-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.13)
xenial Does not exist

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

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

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal
Released (5.15.0-1025.31~20.04.2)
jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.4)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1087.96~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

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

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.11)
xenial Does not exist

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

focal
Released (5.4.0-1074.85)
jammy
Released (5.15.0-1021.23)
kinetic Not vulnerable
(5.19.0-1002.6)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1074.85~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic Needed

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

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Needs triage

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-raspi-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-raspi2-5.4)
xenial Does not exist

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

focal Ignored
(superseded by linux-riscv-5.8)
jammy Needed

kinetic Not vulnerable
(5.19.0-1003.3)
trusty Does not exist

upstream
Released (6.0~rc4)
xenial Does not exist

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

focal Ignored
(superseded by linux-riscv-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-riscv-5.13)
xenial Does not exist

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

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

trusty Does not exist

upstream Ignored
(superseded by linux-riscv-5.11)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1142.152)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.0~rc4)
xenial Needs triage