CVE-2023-3389

Published: 28 June 2023

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).

From the Ubuntu Security Team

Querijn Voet discovered that a race condition existed in the io_uring subsystem in the Linux kernel, leading to 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

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
linux-hwe Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	xenial	Not vulnerable (4.8.0-39.42~16.04.1)
linux-hwe-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	bionic	Not vulnerable (5.4.0-37.41~18.04.1)
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	focal	Ignored (superseded by linux-hwe-5.11)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-hwe-5.11)
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	focal	Ignored (superseded by linux-hwe-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-hwe-5.13)
linux-hwe-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-hwe-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-hwe-5.15)
linux-hwe-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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-78.85~20.04.1)
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
	lunar	Does not exist
	jammy	Released (5.19.0-50.50)
	upstream	Released (6.4)
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
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-lts-xenial Launchpad, Ubuntu, Debian	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Not vulnerable (4.4.0-13.29~14.04.1)
	upstream	Released (6.4)
linux-kvm Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Not vulnerable (4.15.0-1002.2)
	focal	Not vulnerable (5.4.0-1004.4)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1009.9)
	upstream	Released (6.4)
	xenial	Not vulnerable (4.4.0-1004.9)
	jammy	Released (5.15.0-1038.43)
linux-allwinner Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Ignored (end of life, was needed)
	lunar	Ignored (end of life, was needed)
	upstream	Released (6.4)
linux-allwinner-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
	lunar	Does not exist
	jammy	Needed
	upstream	Released (6.4)
linux-aws-5.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-hwe-5.3)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-aws-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-hwe-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-aws-5.4)
linux-aws-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	bionic	Not vulnerable (5.4.0-1018.18~18.04.1)
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)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-aws-5.11)
linux-aws-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-aws-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-aws-5.13)
linux-aws-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-aws-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-aws-5.15)
linux-aws-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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-1040.45~20.04.1)
linux-aws-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
	lunar	Does not exist
	jammy	Released (5.19.0-1029.30~22.04.1)
	upstream	Released (6.4)
linux-aws-hwe Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	xenial	Not vulnerable (4.15.0-1030.31~16.04.1)
linux-azure Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.3)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1008.8)
	trusty	Not vulnerable (4.15.0-1023.24~14.04.1)
	upstream	Released (6.4)
	xenial	Not vulnerable (4.11.0-1009.9)
	jammy	Released (5.15.0-1042.49)
	focal	Not vulnerable (5.4.0-1006.6)
linux-azure-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Not vulnerable (4.15.0-1082.92)
	upstream	Released (6.4)
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
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-azure-5.4)
linux-azure-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	bionic	Not vulnerable (5.4.0-1020.20~18.04.1)
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)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-azure-5.11)
linux-azure-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-azure-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-azure-5.13)
linux-azure-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-azure-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-azure-5.15)
linux-azure-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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-1042.49~20.04.1)
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
	lunar	Does not exist
	jammy	Ignored (was needs-triage now end-of-life)
	upstream	Released (6.4)
linux-azure-fde Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Not vulnerable (5.4.0-1006.6)
	jammy	Released (5.15.0-1042.49)
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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-1042.49~20.04.1)
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	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-bluefield Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Not vulnerable (5.4.0-1007.10)
	jammy	Pending
linux-dell300x Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (end of standard support)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
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
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-fips Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-gcp Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Ignored (superseded by linux-gcp-5.3)
	focal	Not vulnerable (5.4.0-1005.5)
	jammy	Released (5.15.0-1038.46)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1010.10)
	upstream	Released (6.4)
	xenial	Not vulnerable (4.10.0-1004.4)
linux-gcp-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Not vulnerable (4.15.0-1071.81)
	upstream	Released (6.4)
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
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.4)
linux-gcp-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Not vulnerable (5.4.0-1019.19~18.04.2)
	upstream	Released (6.4)
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)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.11)
linux-gcp-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-gcp-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.13)
linux-gcp-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-gcp-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.15)
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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-1038.46~20.04.1)
linux-gcp-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
	lunar	Does not exist
	jammy	Released (5.19.0-1030.32~22.04.1)
	upstream	Released (6.4)
linux-gke Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Ignored (end of standard support)
	bionic	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Ignored (end of life, was needed)
	upstream	Released (6.4)
	jammy	Released (5.15.0-1038.43)
linux-gke-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-gke-5.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (end of standard support)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-gke-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (end of standard support)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-gke-5.4)
linux-gke-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-1038.43~20.04.1)
linux-gkeop Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Not vulnerable (5.4.0-1008.9)
	upstream	Released (6.4)
	jammy	Released (5.15.0-1024.29)
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-gkeop-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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-1024.29~20.04.1)
linux-ibm Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable (5.4.0-1003.4)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1006.6)
	upstream	Released (6.4)
	jammy	Released (5.15.0-1034.37)
linux-ibm-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Not vulnerable (5.4.0-1010.11~18.04.2)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-intel-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (6.4)
linux-intel-iotg Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	jammy	Released (5.15.0-1036.41)
linux-intel-iotg-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
	lunar	Does not exist
	focal	Released (5.15.0-1036.41~20.04.1)
	upstream	Released (6.4)
linux-iot Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Not vulnerable (5.4.0-1001.3)
	upstream	Released (6.4)
linux-lowlatency Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1009.9)
	upstream	Released (6.4)
	jammy	Released (5.15.0-78.85)
linux-lowlatency-hwe-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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-78.85~20.04.1)
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
	lunar	Does not exist
	jammy	Released (5.19.0-1030.30)
	upstream	Released (6.4)
linux-nvidia Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
	jammy	Released (5.15.0-1029.29)
linux-oracle Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Not vulnerable (4.15.0-1007.9)
	focal	Not vulnerable (5.4.0-1005.5)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1008.8)
	upstream	Released (6.4)
	xenial	Not vulnerable (4.15.0-1007.9~16.04.1)
	jammy	Released (5.15.0-1039.45)
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
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
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
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-oracle-5.4)
linux-oracle-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Not vulnerable (5.4.0-1019.19~18.04.1)
	upstream	Released (6.4)
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)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-oracle-5.11)
linux-oracle-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-oracle-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-oracle-5.13)
linux-oracle-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (6.4)
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
	lunar	Does not exist
	upstream	Released (6.4)
	focal	Released (5.15.0-1039.45~20.04.1)
linux-oem Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Ignored (end of standard support)
	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-oem-5.6 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (6.4)
linux-oem-5.10 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (6.4)
linux-oem-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-oem-5.14)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-oem-5.14)
linux-oem-5.14 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (6.4)
linux-oem-5.17 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	lunar	Does not exist
	jammy	Ignored (end of life, was needed)
	kinetic	Ignored (end of life, was needs-triage)
	upstream	Released (6.4)
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
	lunar	Does not exist
	upstream	Released (6.4)
	jammy	Released (6.0.0-1020.20)
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
	lunar	Does not exist
	upstream	Released (6.4)
	jammy	Released (6.1.0-1017.17)
linux-oem-osp1 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (end of standard support)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-raspi Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable (5.4.0-1007.7)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1009.11)
	upstream	Released (6.4)
	jammy	Released (5.15.0-1034.37)
linux-raspi2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	focal	Ignored (replaced by linux-raspi)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (end of standard support)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-raspi2-5.4)
linux-raspi-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Not vulnerable (5.4.0-1013.13~18.04.1)
	upstream	Released (6.4)
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)
	jammy	Ignored (was needs-triage now end-of-life)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-27.28.1)
	upstream	Released (6.4)
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)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-riscv-5.11)
linux-riscv-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-riscv-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Ignored (superseded by linux-riscv-5.13)
linux-riscv-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
	lunar	Does not exist
	focal	Released (5.15.0-1037.41~20.04.2)
	upstream	Released (6.4)
linux-riscv-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
	lunar	Does not exist
	jammy	Ignored (end of life, was needed)
	upstream	Released (6.4)
linux-snapdragon Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Released (6.4)
linux-starfive Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1002.2)
	upstream	Released (6.4)
linux-starfive-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
	lunar	Does not exist
	jammy	Ignored (end of life, was needed)
	upstream	Released (6.4)
linux-xilinx-zynqmp Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Not vulnerable (5.4.0-1020.24)
	jammy	Ignored (was needs-triage now end-of-life)
	upstream	Released (6.4)
linux Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.13.0-16.19)
	focal	Not vulnerable (5.4.0-9.12)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-26.26)
	trusty	Not vulnerable (3.11.0-12.19)
	upstream	Released (6.4)
	xenial	Not vulnerable (4.4.0-2.16)
	jammy	Released (5.15.0-78.85)
	Patches: Introduced by 2665abfd757fb35a241c6f0b1ebf620e3ffb36fb Fixed by ef7dfac51d8ed961b742218f526bd589f3900a59\|0e388fce7aec40992eadee654193cad345d62663
linux-aws Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1001.1)
	focal	Not vulnerable (5.4.0-1005.5)
	kinetic	Ignored (end of life, was needed)
	lunar	Released (6.2.0-1008.8)
	trusty	Not vulnerable (4.4.0-1002.2)
	upstream	Released (6.4)
	xenial	Not vulnerable (4.4.0-1001.10)
	jammy	Released (5.15.0-1040.45)
linux-aws-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
linux-hwe-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
linux-lowlatency-hwe-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
linux-ibm-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-gcp-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
linux-azure-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
linux-azure-fde-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	7.8
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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