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CVE-2023-3776

Published: 21 July 2023

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

From the Ubuntu Security Team

It was discovered that the network packet classifier with netfilter/firewall marks implementation in the Linux kernel did not properly handle reference counting, 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.

Notes

AuthorNote
Priority reason:
By using unprivileged user namespaces, this can be exploited to achieve local privilege escalation.

Mitigation

If not needed, disable the ability for unprivileged users
to create namespaces. To do this temporarily, do:
  sudo sysctl -w kernel.unprivileged_userns_clone=0
To disable across reboots, do:
  echo kernel.unprivileged_userns_clone=0 | \
  sudo tee /etc/sysctl.d/99-disable-unpriv-userns.conf

Priority

High

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
xenial
Released (4.15.0-216.227~16.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Does not exist

bionic Ignored
(replaced by linux-hwe-5.4, was needs-triage)
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 (6.5~rc2)
bionic
Released (5.4.0-159.176~18.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic 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(superseded by linux-hwe-5.11)
jammy Does not exist

kinetic Does not exist

lunar Does not exist

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(superseded by linux-hwe-5.11)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

kinetic Does not exist

lunar Does not exist

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(superseded by linux-hwe-5.13)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

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)
mantic 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

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
focal
Released (5.15.0-82.91~20.04.1)
mantic 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

lunar Does not exist

upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-hwe-6.2, was pending)
mantic 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

jammy Does not exist

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
mantic Does not exist

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

upstream
Released (6.5~rc2)
trusty
Released (4.4.0-244.278~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
trusty Does not exist

kinetic Ignored
(end of life, was needs-triage)
focal
Released (5.4.0-1097.103)
upstream
Released (6.5~rc2)
jammy
Released (5.15.0-1040.45)
lunar
Released (6.2.0-1011.11)
xenial
Released (4.4.0-1123.133)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
bionic
Released (4.15.0-1144.149)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Does not exist

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

upstream
Released (6.5~rc2)
kinetic Ignored
(end of life, was needs-triage)
mantic Does not exist

lunar Ignored
(end of kernel support, was needs-triage)
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

upstream
Released (6.5~rc2)
jammy Ignored
(end of kernel support, was needed)
mantic Does not exist

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 (6.5~rc2)
mantic Does not exist

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)
mantic Does not exist

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 (6.5~rc2)
bionic
Released (5.4.0-1108.116~18.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic 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)
jammy Does not exist

kinetic Does not exist

lunar Does not exist

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

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)
mantic Does not exist

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)
mantic 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

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
focal
Released (5.15.0-1043.48~20.04.1)
mantic Does not exist

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

upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-aws-6.2, was needs-triage)
mantic Does not exist

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 (6.5~rc2)
xenial
Released (4.15.0-1160.173~16.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
kinetic Ignored
(end of life, was needs-triage)
upstream
Released (6.5~rc2)
lunar
Released (6.2.0-1010.10)
focal
Released (5.4.0-1114.120)
jammy
Released (5.15.0-1045.52)
trusty
Released (4.15.0-1169.184~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial
Released (4.15.0-1169.184~16.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Not vulnerable
(6.5.0-1004.4)
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

upstream
Released (6.5~rc2)
bionic
Released (4.15.0-1169.184)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic 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

jammy Does not exist

kinetic Does not exist

lunar Does not exist

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

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 (6.5~rc2)
mantic Does not exist

bionic Pending
(5.4.0-1115.122~18.04.1)
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)
mantic Does not exist

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)
mantic Does not exist

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)
mantic 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

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
focal
Released (5.15.0-1045.52~20.04.1)
mantic 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

lunar Does not exist

upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-azure-6.2, was needs-triage)
mantic Does not exist

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 (6.5~rc2)
focal Ignored
(superseded by linux-azure-fde-5.15, was needed)
mantic Does not exist

jammy
Released (5.15.0-1045.52)
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 (6.5~rc2)
mantic Does not exist

focal
Released (5.15.0-1045.52~20.04.1)
linux-azure-fde-5.19
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
mantic Does not exist

jammy Ignored
(superseded by linux-azure-fde-6.2, was needs-triage)
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 (6.5~rc2)
focal
Released (5.4.0-1070.76)
mantic Does not exist

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 (6.5~rc2)
mantic 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

jammy Does not exist

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
mantic Does not exist

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 (6.5~rc2)
mantic Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Ignored
(superseded by linux-gcp-5.3)
kinetic Ignored
(end of life, was needs-triage)
upstream
Released (6.5~rc2)
lunar
Released (6.2.0-1012.12)
jammy
Released (5.15.0-1040.48)
focal
Released (5.4.0-1111.120)
xenial
Released (4.15.0-1154.171~16.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Not vulnerable
(6.5.0-1004.4)
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

upstream
Released (6.5~rc2)
bionic
Released (4.15.0-1154.171)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic 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

jammy Does not exist

kinetic Does not exist

lunar Does not exist

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

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

upstream
Released (6.5~rc2)
bionic
Released (5.4.0-1111.120~18.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic 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)
jammy Does not exist

kinetic Does not exist

lunar Does not exist

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

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)
mantic Does not exist

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)
mantic 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

lunar Does not exist

upstream
Released (6.5~rc2)
focal
Released (5.15.0-1040.48~20.04.1)
mantic Does not exist

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

upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-gcp-6.2, was needed)
mantic Does not exist

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

upstream
Released (6.5~rc2)
focal Ignored
(end of kernel support, was needed)
jammy
Released (5.15.0-1040.45)
mantic Does not exist

linux-gke-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

upstream
Released (6.5~rc2)
mantic Does not exist

bionic Ignored
(superseded by linux-gke-5.0, was needs-triage)
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 (6.5~rc2)
mantic Does not exist

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)
mantic Does not exist

linux-gke-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 (6.5~rc2)
mantic Does not exist

bionic Ignored
(end of kernel support, was needs-triage)
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 (6.5~rc2)
focal Ignored
(end of kernel support, was needed)
mantic Does not exist

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

upstream
Released (6.5~rc2)
jammy
Released (5.15.0-1026.31)
focal
Released (5.4.0-1075.79)
mantic Does not exist

linux-gkeop-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 (6.5~rc2)
mantic Does not exist

bionic Ignored
(end of kernel support, was needs-triage)
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

focal
Released (5.15.0-1026.31~20.04.1)
upstream
Released (6.5~rc2)
mantic Does not exist

linux-ibm
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

upstream
Released (6.5~rc2)
focal
Released (5.4.0-1056.61)
jammy
Released (5.15.0-1036.39)
lunar
Released (6.2.0-1008.8)
kinetic Ignored
(end of life, was needs-triage)
mantic Ignored
(end of kernel support, was pending)
linux-ibm-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
Released (5.4.0-1056.61~18.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (6.5~rc2)
mantic Does not exist

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

upstream
Released (6.5~rc2)
focal Ignored
(end of kernel support, was needs-triage)
mantic 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

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
jammy
Released (5.15.0-1038.43)
mantic Does not exist

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

upstream
Released (6.5~rc2)
focal
Released (5.15.0-1038.43~20.04.1)
mantic Does not exist

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

upstream
Released (6.5~rc2)
mantic Does not exist

focal
Released (5.4.0-1021.22)
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 needs-triage)
upstream
Released (6.5~rc2)
jammy
Released (5.15.0-82.91)
lunar
Released (6.2.0-1011.11)
mantic Not vulnerable
(6.5.0-5.5.1)
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 (6.5~rc2)
focal
Released (5.15.0-82.91~20.04.1)
mantic 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

lunar Does not exist

upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-lowlatency-hwe-6.2, was needed)
mantic Does not exist

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

jammy
Released (5.15.0-1031.31)
upstream
Released (6.5~rc2)
mantic Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
trusty Does not exist

kinetic Ignored
(end of life, was needs-triage)
upstream
Released (6.5~rc2)
focal
Released (5.4.0-1107.116)
jammy
Released (5.15.0-1041.47)
lunar
Released (6.2.0-1010.10)
xenial
Released (4.15.0-1123.134~16.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
bionic
Released (4.15.0-1123.134)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Not vulnerable
(6.5.0-1005.5)
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 (6.5~rc2)
mantic 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

jammy Does not exist

kinetic Does not exist

lunar Does not exist

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

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

upstream
Released (6.5~rc2)
bionic
Released (5.4.0-1107.116~18.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic 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)
jammy Does not exist

kinetic Does not exist

lunar Does not exist

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

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)
mantic Does not exist

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

upstream
Released (6.5~rc2)
mantic Does not exist

focal Ignored
(superseded by linux-oracle-5.15, was needs-triage)
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 (6.5~rc2)
focal
Released (5.15.0-1041.47~20.04.1)
mantic Does not exist

linux-oem
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(end of standard support)
focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
mantic Does not exist

bionic Ignored
(replaced by linux-hwe-5.4, was needs-triage)
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

upstream
Released (6.5~rc2)
mantic Does not exist

focal Ignored
(superseded by linux-oem-5.10, was needs-triage)
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

upstream
Released (6.5~rc2)
mantic Does not exist

focal Ignored
(superseded by linux-oem-5.13, was needs-triage)
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)
mantic Does not exist

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

upstream
Released (6.5~rc2)
mantic Does not exist

focal Ignored
(replaced by linux-hwe-5.15, was needs-triage)
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

kinetic Ignored
(end of life, was needs-triage)
upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-oem-6.1, was pending)
mantic 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

lunar Does not exist

upstream
Released (6.5~rc2)
jammy
Released (6.0.0-1021.21)
mantic 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

lunar Does not exist

upstream
Released (6.5~rc2)
jammy
Released (6.1.0-1019.19)
mantic Does not exist

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 (6.5~rc2)
mantic Does not exist

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

xenial Does not exist

bionic Does not exist

kinetic Ignored
(end of life, was needs-triage)
upstream
Released (6.5~rc2)
lunar
Released (6.2.0-1011.13)
focal
Released (5.4.0-1092.103)
jammy
Released (5.15.0-1036.39)
mantic Not vulnerable
(6.5.0-1002.2)
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 (6.5~rc2)
mantic Does not exist

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)
mantic Does not exist

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

upstream
Released (6.5~rc2)
bionic
Released (5.4.0-1092.103~18.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic 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)
kinetic Ignored
(end of life, was needs-triage)
upstream
Released (6.5~rc2)
lunar
Released (6.2.0-31.31.1)
mantic Not vulnerable
(6.5.0-9.9.1)
jammy Ignored
(end of kernel support, was needs-triage)
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)
mantic Does not exist

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)
mantic Does not exist

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

upstream
Released (6.5~rc2)
focal
Released (5.15.0-1039.43~20.04.2)
mantic Does not exist

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 kernel support, was needs-triage)
upstream
Released (6.5~rc2)
mantic Does not exist

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 (6.5~rc2)
mantic Does not exist

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

upstream
Released (6.5~rc2)
kinetic Ignored
(end of life, was needs-triage)
lunar
Released (6.2.0-1003.3)
mantic Not vulnerable
(6.5.0-1002.3)
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

upstream
Released (6.5~rc2)
mantic Does not exist

jammy Ignored
(end of kernel support, was needs-triage)
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

upstream
Released (6.5~rc2)
focal
Released (5.4.0-1028.32)
mantic Does not exist

jammy
Released (5.15.0-1025.29)
linux-aws
Launchpad, Ubuntu, Debian
kinetic Ignored
(end of life, was needs-triage)
upstream
Released (6.5~rc2)
jammy
Released (5.15.0-1043.48)
focal
Released (5.4.0-1108.116)
lunar
Released (6.2.0-1010.10)
bionic
Released (4.15.0-1160.173)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
trusty
Released (4.4.0-1122.128)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial
Released (4.4.0-1160.175)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Not vulnerable
(6.5.0-1005.5)
linux
Launchpad, Ubuntu, Debian
upstream
Released (6.5~rc2)
jammy
Released (5.15.0-82.91)
focal
Released (5.4.0-159.176)
lunar
Released (6.2.0-31.31)
bionic
Released (4.15.0-216.227)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
trusty
Released (3.13.0-193.244)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
kinetic Ignored
(end of life, was needs-triage)
xenial
Released (4.4.0-244.278)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Not vulnerable
(6.5.0-5.5)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 0323bce598eea038714f941ce2b22541c46d488f
linux-aws-6.2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

lunar Does not exist

jammy
Released (6.2.0-1010.10~22.04.1)
mantic Does not exist

upstream
Released (6.5~rc2)
linux-hwe-6.2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

lunar Does not exist

jammy
Released (6.2.0-31.31~22.04.1)
mantic Does not exist

upstream
Released (6.5~rc2)
linux-lowlatency-hwe-6.2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

lunar Does not exist

jammy
Released (6.2.0-1011.11~22.04.1)
mantic Does not exist

upstream
Released (6.5~rc2)
linux-ibm-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream
Released (6.5~rc2)
focal
Released (5.15.0-1036.39~20.04.1)
linux-gcp-6.2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

lunar Does not exist

upstream
Released (6.5~rc2)
mantic Does not exist

jammy Ignored
(superseded by linux-gcp-6.5, was 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

lunar Does not exist

mantic Does not exist

upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-azure-6.5, was 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

lunar Does not exist

mantic Does not exist

upstream
Released (6.5~rc2)
jammy Ignored
(replaced by linux-azure-6.5, was needs-triage)
linux-nvidia-6.2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

lunar Does not exist

mantic Does not exist

upstream
Released (6.5~rc2)
jammy Ignored
(superseded by linux-nvidia-6.5, was needs-triage)
linux-starfive-6.2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Not vulnerable
(6.2.0-1006.7~22.04.1)
lunar Does not exist

mantic Does not exist

upstream
Released (6.5~rc2)
linux-laptop
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

mantic Not vulnerable

upstream Needs triage

linux-oem-6.5
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

mantic Does not exist

upstream Needs triage

linux-hwe-6.5
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

mantic Does not exist

upstream Needs triage

linux-lowlatency-hwe-6.5
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

mantic Does not exist

upstream Needs triage

linux-riscv-6.5
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Not vulnerable

mantic Does not exist

upstream Needs triage

linux-starfive-6.5
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Not vulnerable

mantic Does not exist

upstream Needs triage

linux-aws-6.5
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Not vulnerable

mantic Does not exist

upstream Needs triage

linux-azure-6.5
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Not vulnerable

mantic Does not exist

upstream Needs triage

linux-gcp-6.5
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Not vulnerable

mantic 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