CVE-2021-45868

Published: 18 March 2022

In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.

From the Ubuntu Security Team

It was discovered that the file system quotas implementation in the Linux kernel did not properly validate the quota block number. An attacker could use this to construct a malicious file system image that, when mounted and operated on, could cause a denial of service (system crash).

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	trusty	Ignored (was needed ESM criteria)
	bionic	Released (4.15.0-167.175)
	focal	Released (5.4.0-97.110)
	impish	Released (5.13.0-28.31)
	upstream	Released (5.16~rc1)
	jammy	Not vulnerable (5.15.0-17.17)
	kinetic	Not vulnerable (5.15.0-25.25)
	xenial	Released (4.4.0-239.273)
	lunar	Not vulnerable (5.19.0-21.21)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 9bf3d20331295b1ecb81f4ed9ef358c51699a050
linux-hwe Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Ignored (replaced by linux-hwe-5.4)
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	xenial	Released (4.15.0-167.175~16.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-97.110~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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	focal	Ignored (superseded by linux-hwe-5.11)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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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	focal	Ignored (superseded by linux-hwe-5.13)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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-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 (5.13.0-28.31~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Released (4.4.0-239.273~14.04.1)
	lunar	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	trusty	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (4.15.0-1106.108)
	focal	Released (5.4.0-1054.56)
	impish	Released (5.13.0-1011.12)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1004.4)
	xenial	Released (4.4.0-1118.128)
	lunar	Not vulnerable (5.19.0-1008.8)
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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-1064.67~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-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 (5.13.0-1012.13~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	xenial	Released (4.15.0-1119.126~16.04.2)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.3)
	upstream	Released (5.16~rc1)
	focal	Released (5.4.0-1068.71)
	impish	Released (5.13.0-1013.15)
	trusty	Released (4.15.0-1130.143~14.04.1)
	xenial	Released (4.15.0-1130.143~16.04.1)
	jammy	Not vulnerable (5.15.0-1001.2)
	kinetic	Not vulnerable (5.15.0-1003.4)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-azure-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (4.15.0-1130.143)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-1068.71~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	focal	Released (5.13.0-1013.15~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-fde 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 (5.4.0-1068.71)
	jammy	Not vulnerable (5.15.0-1001.2)
	kinetic	Does not exist
	lunar	Does not exist
linux-bluefield 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 (5.4.0-1026.29)
	kinetic	Does not exist
	jammy	Not vulnerable (5.15.0-1011.13)
	lunar	Does not exist
linux-dell300x Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	bionic	Released (4.15.0-1034.39)
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (out of standard support)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Ignored (superseded by linux-gcp-5.3)
	upstream	Released (5.16~rc1)
	focal	Released (5.4.0-1063.67)
	impish	Released (5.13.0-1013.16)
	xenial	Released (4.15.0-1115.129~16.04.1)
	jammy	Not vulnerable (5.15.0-1001.3)
	kinetic	Not vulnerable (5.15.0-1003.6)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-gcp-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (4.15.0-1115.129)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-1063.67~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-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 (5.13.0-1013.16~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Does not exist
	impish	Does not exist
	xenial	Ignored (reached end of standard support)
	upstream	Released (5.16~rc1)
	focal	Released (5.4.0-1061.64)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-1061.64~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gkeop 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 (5.4.0-1032.33)
	jammy	Not vulnerable (5.15.0-1001.2)
	kinetic	Does not exist
	lunar	Does not exist
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-1032.33~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-ibm 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 (5.4.0-1013.14)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1002.2)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-ibm-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-1014.15~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-intel-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	trusty	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (4.15.0-1086.94)
	focal	Released (5.4.0-1062.66)
	impish	Released (5.13.0-1016.20)
	xenial	Released (4.15.0-1086.94~16.04.1)
	jammy	Not vulnerable (5.15.0-1001.3)
	kinetic	Not vulnerable (5.15.0-1002.4)
	lunar	Not vulnerable (5.19.0-1008.8)
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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	bionic	Released (5.4.0-1062.66~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-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 (5.13.0-1016.20~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem Launchpad, Ubuntu, Debian	trusty	Does not exist
	focal	Does not exist
	impish	Does not exist
	xenial	Ignored (superseded by linux-hwe)
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.10 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	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
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.14 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 (5.14.0-1013.13)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	upstream	Released (5.16~rc1)
	focal	Released (5.4.0-1052.58)
	impish	Released (5.13.0-1016.18)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1005.5)
	lunar	Not vulnerable (5.19.0-1004.10)
linux-raspi2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	focal	Ignored (replaced by linux-raspi)
	impish	Does not exist
	xenial	Ignored (end of standard support)
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	bionic	Released (4.15.0-1102.109)
	lunar	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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	bionic	Released (5.4.0-1052.58~18.04.1)
	lunar	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)
	upstream	Released (5.16~rc1)
	impish	Released (5.13.0-1011.12)
	jammy	Not vulnerable (5.15.0-1004.4)
	kinetic	Not vulnerable (5.15.0-1007.7)
	lunar	Not vulnerable (5.19.0-1004.4)
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
	upstream	Released (5.16~rc1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-riscv-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	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
	kinetic	Does not exist
	lunar	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	trusty	Does not exist
	focal	Does not exist
	impish	Does not exist
	xenial	Ignored (end of standard support)
	upstream	Released (5.16~rc1)
	bionic	Released (4.15.0-1119.128)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws Launchpad, Ubuntu, Debian	trusty	Released (4.4.0-1117.123)
	upstream	Released (5.16~rc1)
	bionic	Released (4.15.0-1119.127)
	focal	Released (5.4.0-1064.67)
	impish	Released (5.13.0-1012.13)
	jammy	Not vulnerable (5.15.0-1002.4)
	kinetic	Not vulnerable (5.15.0-1004.6)
	xenial	Released (4.4.0-1155.170)
	lunar	Not vulnerable (5.19.0-1009.9)
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~rc1)
	kinetic	Not vulnerable (5.15.0-24.24)
	lunar	Not vulnerable (5.19.0-1007.7)
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~rc1)
	kinetic	Not vulnerable (5.17.0-1003.3)
	lunar	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	Not vulnerable (5.15.0-1004.6)
	upstream	Released (5.16~rc1)
	kinetic	Does not exist
	lunar	Does not exist
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~rc1)
	kinetic	Does not exist
	lunar	Does not exist
linux-lowlatency-hwe-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-33.34~20.04.1)
	upstream	Released (5.16~rc1)
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-33.34~20.04.1)
	upstream	Released (5.16~rc1)
	kinetic	Does not exist
	lunar	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
	focal	Not vulnerable (5.15.0-1014.18~20.04.1)
	kinetic	Does not exist
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-gcp-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	focal	Not vulnerable (5.15.0-1006.9~20.04.1)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-gke-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	focal	Not vulnerable (5.15.0-1011.14~20.04.1)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-azure-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-1007.8~20.04.1)
	kinetic	Does not exist
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-oracle-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	focal	Not vulnerable (5.15.0-1007.9~20.04.1)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-azure-fde-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	focal	Not vulnerable (5.15.0-1007.8~20.04.1)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-oem-6.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	jammy	Not vulnerable (6.0.0-1006.6)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-oem-6.1 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	jammy	Not vulnerable (6.1.0-1004.4)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-hwe-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	jammy	Not vulnerable (5.19.0-28.29~22.04.1)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-lowlatency-hwe-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	jammy	Not vulnerable (5.19.0-1017.18~22.04.1)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-azure-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	jammy	Not vulnerable (5.19.0-1020.21~22.04.1)
	upstream	Released (5.16~rc1)
	lunar	Does not exist
linux-iot Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-riscv-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-azure-fde-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-xilinx-zynqmp Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	5.5
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Bugs

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