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CVE-2021-45469

Published: 23 December 2021

In __f2fs_setxattr in fs/f2fs/xattr.c in the Linux kernel through 5.15.11, there is an out-of-bounds memory access when an inode has an invalid last xattr entry.

From the Ubuntu security team

Wenqing Liu discovered that the f2fs file system in the Linux kernel did not properly validate the last xattr entry in an inode. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could 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
bionic
Released (4.15.0-169.177)
focal
Released (5.4.0-105.119)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-37.42)
jammy Not vulnerable
(5.15.0-17.17)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.17~rc1)
xenial
Released (4.4.0-222.255)
Patches:
Introduced by

af48b85b8cd3fbb12c9b6759c16db6d69c0b03da

Fixed by 645a3c40ca3d40cc32b4b5972bf2620f2eb5dba6|5598b24efaf4892741c798b425d543e4bed357a1
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1121.129)
focal
Released (5.4.0-1069.73)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1019.21)
jammy Not vulnerable
(5.15.0-1002.4)
trusty
Released (4.4.0-1102.107)
upstream
Released (5.17~rc1)
xenial
Released (4.4.0-1138.152)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Ignored
(was needed now end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Not vulnerable

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

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(superseded by linux-aws-5.4)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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1069.73~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial
Released (4.15.0-1120.128~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1073.76)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1021.24)
jammy Not vulnerable
(5.15.0-1001.2)
trusty
Released (4.15.0-1131.144~14.04.1)
upstream
Released (5.17~rc1)
xenial
Released (4.15.0-1131.144~16.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1131.144)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Ignored
(was needed now end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Not vulnerable

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1073.76~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Not vulnerable
(5.4.0-1063.66+cvm2.2)
impish Does not exist

jammy Needs triage

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.4.0-1032.35)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1035.40)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Not vulnerable
(4.4.0-1074.80)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1068.72)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1021.25)
jammy Not vulnerable
(5.15.0-1001.3)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial
Released (4.15.0-1116.130~16.04.1)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1116.130)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Ignored
(was needed now end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.13.0-1021.25~20.04.1)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Not vulnerable

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1068.72~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.4.0-1066.69)
hirsute Does not exist

impish Does not exist

jammy Not vulnerable
(5.15.0-1002.2)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial Ignored
(reached end of standard support)
linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Not vulnerable

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1066.69~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.4.0-1037.38)
hirsute Does not exist

impish Does not exist

jammy Needs triage

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1037.38~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial
Released (4.15.0-169.177~16.04.1)
linux-hwe-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.13.0-37.42~20.04.1)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Not vulnerable

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-105.119~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-ibm
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1018.20)
hirsute Does not exist

impish Does not exist

jammy Not vulnerable
(5.15.0-1002.2)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1018.20~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Does not exist

impish Does not exist

jammy Not vulnerable

trusty Does not exist

upstream Needs triage

xenial Does not exist

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

focal Not vulnerable

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1107.109)
focal
Released (5.4.0-1059.62)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1018.19)
jammy Not vulnerable
(5.15.0-1002.2)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial
Released (4.4.0-1103.112)
linux-lowlatency
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable
(5.15.0-22.22)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Not vulnerable

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

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

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty
Released (4.4.0-222.255~14.04.1)
upstream
Released (5.17~rc1)
xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-oem-5.10
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needed now end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Ignored
(was needed now end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.14.0-1022.24)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Does not exist

impish Does not exist

jammy Not vulnerable
(5.17.0-1003.3)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1087.95)
focal
Released (5.4.0-1067.72)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1023.28)
jammy Not vulnerable
(5.15.0-1001.3)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial
Released (4.15.0-1087.95~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Ignored
(was needed now end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.13.0-1025.30~20.04.1)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1067.72~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal
Released (5.4.0-1056.63)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1022.24)
jammy Not vulnerable
(5.15.0-1002.2)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1056.63~18.04.1)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1103.110)
focal Ignored
(replaced by linux-raspi)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Ignored
(was needs-triage now end-of-life)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-riscv-5.8)
hirsute Ignored
(reached end-of-life)
impish
Released (5.13.0-1017.19)
jammy Not vulnerable
(5.15.0-1004.4)
trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

focal Ignored
(was needed now end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

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

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

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1120.129)
focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.17~rc1)
xenial Ignored
(was needs-triage now end-of-life)