CVE-2021-4083

Published: 18 January 2022

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.

From the Ubuntu Security Team

Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Cvss 3 Severity Score

7.0

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-169.177)
	focal	Released (5.4.0-100.113)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-30.33)
	jammy	Not vulnerable (5.15.0-17.17)
	kinetic	Not vulnerable (5.15.0-25.25)
	lunar	Not vulnerable (5.15.0-25.25)
	trusty	Ignored (was needed ESM criteria)
	upstream	Released (5.16~rc4)
	xenial	Released (4.4.0-223.256)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 054aa8d439b9185d4f5eb9a90282d1ce74772969
linux-aws Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1121.129)
	focal	Released (5.4.0-1066.69)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1014.15)
	jammy	Not vulnerable (5.15.0-1002.4)
	kinetic	Not vulnerable (5.15.0-1004.6)
	lunar	Not vulnerable (5.15.0-1004.6)
	trusty	Released (4.4.0-1103.108)
	upstream	Released (5.16~rc4)
	xenial	Released (4.4.0-1139.153)
linux-aws-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-aws-5.3)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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-aws-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was pending [5.11.0-1029.32~20.04.1] now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-aws-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.13.0-1014.15~20.04.1)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-aws-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-aws-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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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 (5.4.0-1070.73)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1014.16)
	jammy	Not vulnerable (5.15.0-1001.2)
	kinetic	Not vulnerable (5.15.0-1003.4)
	lunar	Not vulnerable (5.15.0-1003.4)
	trusty	Released (4.15.0-1131.144~14.04.1)
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-azure-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was pending [5.11.0-1029.32~20.04.2] now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-azure-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.13.0-1014.16~20.04.1)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-azure-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-azure-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-1070.73~18.04.1)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-azure-fde Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.4.0-1070.73)
	impish	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-azure-fde-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable (5.15.0-1007.8~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-fde-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-bluefield Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.4.0-1028.31)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.15.0-1011.13)
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Ignored (out of standard support)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gcp-5.3)
	focal	Released (5.4.0-1065.69)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1015.18)
	jammy	Not vulnerable (5.15.0-1001.3)
	kinetic	Not vulnerable (5.15.0-1003.6)
	lunar	Not vulnerable (5.15.0-1003.6)
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gcp-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was pending [5.11.0-1030.34~20.04.3] now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gcp-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.13.0-1015.18~20.04.1)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gcp-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gcp-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-1065.69~18.04.1)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gke Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.4.0-1063.66)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gke-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gke-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-1063.66~18.04.1)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gkeop Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.4.0-1034.35)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-1034.35~18.04.1)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Released (4.15.0-169.177~16.04.1)
linux-hwe-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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-hwe-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.13.0-30.33~20.04.1)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-hwe-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-100.113~18.04.1)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Ignored (superseded by linux-hwe)
linux-ibm Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.4.0-1015.16)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1002.2)
	lunar	Not vulnerable (5.15.0-1002.2)
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-ibm-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-1015.16~18.04.1)
	focal	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-intel-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.13.0-1010.10)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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 (5.15.0-1004.6)
	kinetic	Does not exist
	lunar	Does not exist
	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 (5.15.0-1003.5~20.04.1)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-iot Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.4.0-1056.58)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1013.14)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1004.4)
	lunar	Not vulnerable (5.15.0-1004.4)
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Released (4.4.0-1104.113)
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)
	kinetic	Not vulnerable (5.15.0-24.24)
	lunar	Not vulnerable (5.15.0-24.24)
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-lowlatency-hwe-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-lowlatency-hwe-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Released (4.4.0-223.256~14.04.1)
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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)
	kinetic	Not vulnerable (5.17.0-1003.3)
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~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)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-oem-6.0 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-6.1 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1087.95)
	focal	Released (5.4.0-1064.68)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1018.22)
	jammy	Not vulnerable (5.15.0-1001.3)
	kinetic	Not vulnerable (5.15.0-1002.4)
	lunar	Not vulnerable (5.15.0-1002.4)
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-oracle-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was pending [5.11.0-1029.32~20.04.1] now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-oracle-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.13.0-1018.22~20.04.1)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-oracle-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-oracle-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-1064.68~18.04.1)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Released (5.4.0-1053.60)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1017.19)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1005.5)
	lunar	Not vulnerable (5.15.0-1005.5)
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-raspi-5.4 Launchpad, Ubuntu, Debian	bionic	Released (5.4.0-1053.60~18.04.1)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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 (5.13.0-1012.14)
	jammy	Not vulnerable (5.15.0-1004.4)
	kinetic	Not vulnerable (5.15.0-1007.7)
	lunar	Not vulnerable (5.15.0-1007.7)
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-riscv-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was pending [5.11.0-1030.34] now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Does not exist
linux-riscv-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	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
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.16~rc4)
	xenial	Ignored (was needs-triage now end-of-life)

Severity score breakdown

Parameter	Value
Base score	7.0
Attack vector	Local
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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