CVE-2022-1966

Publication date 3 June 2022

Last updated 4 August 2025

Ubuntu priority

High

Why this priority?

Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-32250. Reason: This candidate is a duplicate of CVE-2022-32250. Notes: All CVE users should reference CVE-2022-32250 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.

From the Ubuntu Security Team

Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.

Mitigation

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

Status

Package Ubuntu Release Status
linux 22.04 LTS jammy
Fixed 5.15.0-37.39
21.10 impish
Fixed 5.13.0-48.54
20.04 LTS focal
Fixed 5.4.0-117.132
18.04 LTS bionic
Fixed 4.15.0-184.194
16.04 LTS xenial
Fixed 4.4.0-227.261
14.04 LTS trusty
Not affected
linux-aws 22.04 LTS jammy
Fixed 5.15.0-1011.14
21.10 impish
Fixed 5.13.0-1028.31
20.04 LTS focal
Fixed 5.4.0-1078.84
18.04 LTS bionic
Fixed 4.15.0-1133.143
16.04 LTS xenial
Fixed 4.4.0-1143.158
14.04 LTS trusty
Fixed 4.4.0-1107.113
linux-aws-5.0 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-aws-5.3
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.11 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.13 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Fixed 5.13.0-1028.31~20.04.1
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.3 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-aws-5.4
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1078.84~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.8 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Ignored superseded by linux-aws-5.11
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-hwe 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Fixed 4.15.0-1133.143~16.04.1
14.04 LTS trusty Not in release
linux-azure 22.04 LTS jammy
Fixed 5.15.0-1010.12
21.10 impish
Fixed 5.13.0-1028.33
20.04 LTS focal
Fixed 5.4.0-1083.87
18.04 LTS bionic Ignored superseded by linux-azure-5.3
16.04 LTS xenial
Fixed 4.15.0-1142.156~16.04.1
14.04 LTS trusty
Fixed 4.15.0-1142.156~14.04.1
linux-azure-4.15 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 4.15.0-1142.156
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.11 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.13 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Fixed 5.13.0-1028.33~20.04.1
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.3 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-azure-5.4
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1083.87~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.8 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Ignored superseded by linux-azure-5.11
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-edge 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-azure-5.3
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-fde 22.04 LTS jammy
Not affected
21.10 impish Not in release
20.04 LTS focal
Fixed 5.4.0-1083.87+cvm1.1
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-bluefield 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-dell300x 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored end of standard support, was needs-triage
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-fips 22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.04 LTS focal  
Not affected
18.04 LTS bionic  
Not affected
16.04 LTS xenial  
Not affected
14.04 LTS trusty Not in release
linux-gcp 22.04 LTS jammy
Fixed 5.15.0-1008.12
21.10 impish
Fixed 5.13.0-1030.36
20.04 LTS focal
Fixed 5.4.0-1078.84
18.04 LTS bionic Ignored superseded by linux-gcp-5.3
16.04 LTS xenial
Fixed 4.15.0-1127.142~16.04.1
14.04 LTS trusty Not in release
linux-gcp-4.15 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.11 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.13 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Fixed 5.13.0-1030.36~20.04.1
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.3 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-gcp-5.4
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.8 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Ignored superseded by linux-gcp-5.11
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke 22.04 LTS jammy
Fixed 5.15.0-1008.10
21.10 impish Not in release
20.04 LTS focal
Fixed 5.4.0-1074.79
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-4.15 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-5.0 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-5.3 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1074.79~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gkeop 22.04 LTS jammy
Not affected
21.10 impish Not in release
20.04 LTS focal
Fixed 5.4.0-1046.48
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gkeop-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1046.48~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored replaced by linux-hwe-5.4
16.04 LTS xenial
Fixed 4.15.0-184.194~16.04.1
14.04 LTS trusty Not in release
linux-hwe-5.11 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Ignored superseded by linux-hwe-5.13
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-5.13 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Fixed 5.13.0-48.54~20.04.1
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-117.132~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-5.8 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Ignored superseded by linux-hwe-5.11
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-edge 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-hwe-5.4
16.04 LTS xenial Ignored superseded by linux-hwe
14.04 LTS trusty Not in release
linux-ibm 22.04 LTS jammy
Fixed 5.15.0-1007.8
21.10 impish Not in release
20.04 LTS focal
Fixed 5.4.0-1026.29
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-ibm-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1026.29~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-intel-5.13 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Fixed 5.13.0-1014.15
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-intel-iotg 22.04 LTS jammy
Fixed 5.15.0-1008.11
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-intel-iotg-5.15 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-kvm 22.04 LTS jammy
Fixed 5.15.0-1010.11
21.10 impish
Fixed 5.13.0-1027.29
20.04 LTS focal
Fixed 5.4.0-1068.72
18.04 LTS bionic
Fixed 4.15.0-1119.123
16.04 LTS xenial
Fixed 4.4.0-1108.118
14.04 LTS trusty Not in release
linux-lowlatency 22.04 LTS jammy
Fixed 5.15.0-37.39
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-lts-xenial 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 4.4.0-227.261~14.04.1
linux-oem 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-5.10 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-5.13 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-5.14 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Fixed 5.14.0-1042.47
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-5.17 22.04 LTS jammy
Fixed 5.17.0-1011.12
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-5.6 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-osp1 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle 22.04 LTS jammy
Fixed 5.15.0-1009.12
21.10 impish
Fixed 5.13.0-1033.39
20.04 LTS focal
Fixed 5.4.0-1076.83
18.04 LTS bionic
Fixed 4.15.0-1098.108
16.04 LTS xenial
Fixed 4.15.0-1098.108~16.04.1
14.04 LTS trusty Not in release
linux-oracle-5.0 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-oracle-5.3
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.11 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.13 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Fixed 5.13.0-1033.39~20.04.1
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.3 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored superseded by linux-oracle-5.4
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1076.83~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.8 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Ignored superseded by linux-oracle-5.11
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi 22.04 LTS jammy
Fixed 5.15.0-1011.13
21.10 impish
Fixed 5.13.0-1031.34
20.04 LTS focal
Fixed 5.4.0-1065.75
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi-5.4 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1065.75~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi2 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 4.15.0-1114.122
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi2-5.3 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv 22.04 LTS jammy
Not affected
21.10 impish Ignored end of life, was needs-triage
20.04 LTS focal Ignored superseded by linux-riscv-5.8
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv-5.11 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv-5.8 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Ignored superseded by linux-riscv-5.11
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-snapdragon 22.04 LTS jammy Not in release
21.10 impish Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 4.15.0-1132.142
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

References

Related Ubuntu Security Notices (USN)

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Other references