First published: Mon Jan 31 2022(Updated: )
A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
Credit: cve-coordination@google.com cve-coordination@google.com cve-coordination@google.com
Affected Software | Affected Version | How to fix |
---|---|---|
redhat/kernel-rt | <0:4.18.0-425.3.1.rt7.213.el8 | 0:4.18.0-425.3.1.rt7.213.el8 |
redhat/kernel | <0:4.18.0-425.3.1.el8 | 0:4.18.0-425.3.1.el8 |
redhat/kernel | <0:5.14.0-70.22.1.el9_0 | 0:5.14.0-70.22.1.el9_0 |
redhat/kernel-rt | <0:5.14.0-70.22.1.rt21.94.el9_0 | 0:5.14.0-70.22.1.rt21.94.el9_0 |
redhat/kernel | <5.17 | 5.17 |
Linux Linux kernel | >=5.1<5.17 | |
Linux Linux kernel | =5.17 | |
Linux Linux kernel | =5.17-rc1 | |
Linux Linux kernel | =5.17-rc2 | |
Redhat Enterprise Linux | =8.0 | |
Fedoraproject Fedora | =35 | |
Canonical Ubuntu Linux | =16.04 | |
Canonical Ubuntu Linux | =18.04 | |
Canonical Ubuntu Linux | =20.04 | |
Canonical Ubuntu Linux | =21.10 | |
Canonical Ubuntu Linux | =22.04 | |
Netapp H300s Firmware | ||
Netapp H300s | ||
Netapp H500s Firmware | ||
Netapp H500s | ||
Netapp H700s Firmware | ||
Netapp H700s | ||
Netapp H300e Firmware | ||
Netapp H300e | ||
Netapp H500e Firmware | ||
Netapp H500e | ||
Netapp H700e Firmware | ||
Netapp H700e | ||
Netapp H410s Firmware | ||
Netapp H410s | ||
Netapp H410c Firmware | ||
Netapp H410c | ||
All of | ||
Netapp H300s Firmware | ||
Netapp H300s | ||
All of | ||
Netapp H500s Firmware | ||
Netapp H500s | ||
All of | ||
Netapp H700s | ||
Netapp H700s Firmware | ||
All of | ||
Netapp H300e | ||
Netapp H300e Firmware | ||
All of | ||
Netapp H500e | ||
Netapp H500e Firmware | ||
All of | ||
Netapp H700e | ||
Netapp H700e Firmware | ||
All of | ||
Netapp H410s | ||
Netapp H410s Firmware | ||
All of | ||
Netapp H410c | ||
Netapp H410c Firmware | ||
ubuntu/linux | <5.4.0-107.121 | 5.4.0-107.121 |
ubuntu/linux | <5.13.0-39.44 | 5.13.0-39.44 |
ubuntu/linux | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws | <5.4.0-1071.76 | 5.4.0-1071.76 |
ubuntu/linux-aws | <5.13.0-1021.23 | 5.13.0-1021.23 |
ubuntu/linux-aws | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-5.0 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-5.11 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-5.13 | <5.13.0-1021.23~20.04.2 | 5.13.0-1021.23~20.04.2 |
ubuntu/linux-aws-5.13 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-5.3 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-5.4 | <5.4.0-1071.76~18.04.1 | 5.4.0-1071.76~18.04.1 |
ubuntu/linux-aws-5.4 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-5.8 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-fips | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-aws-hwe | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure | <5.4.0-1074.77 | 5.4.0-1074.77 |
ubuntu/linux-azure | <5.13.0-1021.24 | 5.13.0-1021.24 |
ubuntu/linux-azure | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-4.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-5.11 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-5.13 | <5.13.0-1021.24~20.04.1 | 5.13.0-1021.24~20.04.1 |
ubuntu/linux-azure-5.13 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-5.3 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-5.4 | <5.4.0-1074.77~18.04.1 | 5.4.0-1074.77~18.04.1 |
ubuntu/linux-azure-5.4 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-edge | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-fde | <5.4.0-1074.77 | 5.4.0-1074.77 |
ubuntu/linux-azure-fde | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-fde-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-azure-fips | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-bluefield | <5.4.0-1032.35 | 5.4.0-1032.35 |
ubuntu/linux-bluefield | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-dell300x | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-fips | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp | <5.4.0-1069.73 | 5.4.0-1069.73 |
ubuntu/linux-gcp | <5.13.0-1023.28 | 5.13.0-1023.28 |
ubuntu/linux-gcp | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-4.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-5.11 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-5.13 | <5.13.0-1023.28~20.04.1 | 5.13.0-1023.28~20.04.1 |
ubuntu/linux-gcp-5.13 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-5.3 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-5.4 | <5.4.0-1069.73~18.04.1 | 5.4.0-1069.73~18.04.1 |
ubuntu/linux-gcp-5.8 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gcp-fips | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gke | <5.4.0-1067.70 | 5.4.0-1067.70 |
ubuntu/linux-gke | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gke-4.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gke-5.0 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gke-5.3 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gke-5.4 | <5.4.0-1067.70~18.04.1 | 5.4.0-1067.70~18.04.1 |
ubuntu/linux-gke-5.4 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gkeop | <5.4.0-1038.39 | 5.4.0-1038.39 |
ubuntu/linux-gkeop | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gkeop-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-gkeop-5.4 | <5.4.0-1038.39~18.04.1 | 5.4.0-1038.39~18.04.1 |
ubuntu/linux-gkeop-5.4 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe-5.11 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe-5.13 | <5.13.0-39.44~20.04.1 | 5.13.0-39.44~20.04.1 |
ubuntu/linux-hwe-5.13 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe-5.4 | <5.4.0-107.121~18.04.1 | 5.4.0-107.121~18.04.1 |
ubuntu/linux-hwe-5.4 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe-5.8 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-hwe-edge | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-ibm | <5.4.0-1019.21 | 5.4.0-1019.21 |
ubuntu/linux-ibm | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-ibm-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-ibm-5.4 | <5.4.0-1019.21~18.04.1 | 5.4.0-1019.21~18.04.1 |
ubuntu/linux-ibm-5.4 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-intel | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-intel-5.13 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-intel-iotg | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-intel-iotg-5.15 | <5.15.0-1008.11~20.04.1 | 5.15.0-1008.11~20.04.1 |
ubuntu/linux-intel-iotg-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-iot | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-kvm | <5.4.0-1061.64 | 5.4.0-1061.64 |
ubuntu/linux-kvm | <5.13.0-1020.21 | 5.13.0-1020.21 |
ubuntu/linux-kvm | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-laptop | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-lowlatency | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-lowlatency-hwe-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-lowlatency-hwe-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-lts-xenial | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-nvidia | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-nvidia-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-nvidia-6.8 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-nvidia-lowlatency | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem-5.10 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem-5.13 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem-5.14 | <5.14.0-1027.30 | 5.14.0-1027.30 |
ubuntu/linux-oem-5.17 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem-5.6 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem-6.8 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oem-osp1 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oracle | <5.4.0-1069.75 | 5.4.0-1069.75 |
ubuntu/linux-oracle | <5.13.0-1025.30 | 5.13.0-1025.30 |
ubuntu/linux-oracle | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oracle-5.0 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oracle-5.11 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oracle-5.13 | <5.13.0-1025.30~20.04.1 | 5.13.0-1025.30~20.04.1 |
ubuntu/linux-oracle-5.13 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oracle-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oracle-5.3 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-oracle-5.4 | <5.4.0-1069.75~18.04.1 | 5.4.0-1069.75~18.04.1 |
ubuntu/linux-oracle-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-raspi | <5.4.0-1058.65 | 5.4.0-1058.65 |
ubuntu/linux-raspi | <5.13.0-1024.26 | 5.13.0-1024.26 |
ubuntu/linux-raspi | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-raspi-5.4 | <5.4.0-1058.65~18.04.1 | 5.4.0-1058.65~18.04.1 |
ubuntu/linux-raspi-5.4 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-raspi2 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-raspi2-5.3 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-riscv | <5.13.0-1019.21 | 5.13.0-1019.21 |
ubuntu/linux-riscv | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-riscv-5.11 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-riscv-5.15 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-riscv-5.8 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-riscv-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-snapdragon | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-starfive | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-starfive-6.5 | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
ubuntu/linux-xilinx-zynqmp | <5.17~<5.4.177<5.15.20 | 5.17~ 5.4.177 5.15.20 |
debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.12-1 6.10.3-1 |
On non-containerized deployments of Red Hat Enterprise Linux 8, you can disable user namespaces by setting user.max_user_namespaces to 0: # echo "user.max_user_namespaces=0" > /etc/sysctl.d/userns.conf # sysctl -p /etc/sysctl.d/userns.conf On containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled.
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(Appears in the following advisories)