First published: Tue Mar 22 2022(Updated: )
A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker.
Credit: secalert@redhat.com secalert@redhat.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 | <0:5.14.0-162.6.1.el9_1 | 0:5.14.0-162.6.1.el9_1 |
redhat/kernel-rt | <0:5.14.0-162.6.1.rt21.168.el9_1 | 0:5.14.0-162.6.1.rt21.168.el9_1 |
redhat/kernel | <0:5.14.0-70.64.1.el9_0 | 0:5.14.0-70.64.1.el9_0 |
redhat/kernel-rt | <0:5.14.0-70.64.1.rt21.135.el9_0 | 0:5.14.0-70.64.1.rt21.135.el9_0 |
Linux Linux kernel | <=3.12 | |
Linux Linux kernel | >=3.13<=5.17 | |
Linux Linux kernel | =3.13-rc1 | |
Redhat Enterprise Linux | =8.0 | |
Redhat Enterprise Linux | =9.0 | |
ubuntu/linux | <4.15.0-184.194 | 4.15.0-184.194 |
ubuntu/linux | <5.4.0-110.124 | 5.4.0-110.124 |
ubuntu/linux | <5.13.0-40.45 | 5.13.0-40.45 |
ubuntu/linux | <5.15.0-27.28 | 5.15.0-27.28 |
ubuntu/linux | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux | <4.4.0-239.273 | 4.4.0-239.273 |
ubuntu/linux-aws | <4.15.0-1133.143 | 4.15.0-1133.143 |
ubuntu/linux-aws | <5.4.0-1073.78 | 5.4.0-1073.78 |
ubuntu/linux-aws | <5.13.0-1022.24 | 5.13.0-1022.24 |
ubuntu/linux-aws | <5.15.0-1005.7 | 5.15.0-1005.7 |
ubuntu/linux-aws | <5.19.0-1001.1 | 5.19.0-1001.1 |
ubuntu/linux-aws | <4.4.0-1117.123 | 4.4.0-1117.123 |
ubuntu/linux-aws | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws | <4.4.0-1155.170 | 4.4.0-1155.170 |
ubuntu/linux-aws-5.0 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-5.11 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-5.13 | <5.13.0-1022.24~20.04.1 | 5.13.0-1022.24~20.04.1 |
ubuntu/linux-aws-5.13 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-5.3 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-5.4 | <5.4.0-1075.80~18.04.1 | 5.4.0-1075.80~18.04.1 |
ubuntu/linux-aws-5.4 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-5.8 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-fips | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-hwe | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-aws-hwe | <4.15.0-1133.143~16.04.1 | 4.15.0-1133.143~16.04.1 |
ubuntu/linux-azure | <5.4.0-1078.81 | 5.4.0-1078.81 |
ubuntu/linux-azure | <5.13.0-1022.26 | 5.13.0-1022.26 |
ubuntu/linux-azure | <5.15.0-1005.6 | 5.15.0-1005.6 |
ubuntu/linux-azure | <5.19.0-1001.1 | 5.19.0-1001.1 |
ubuntu/linux-azure | <4.15.0-1142.156~14.04.1 | 4.15.0-1142.156~14.04.1 |
ubuntu/linux-azure | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure | <4.15.0-1142.156~16.04.1 | 4.15.0-1142.156~16.04.1 |
ubuntu/linux-azure-4.15 | <4.15.0-1142.156 | 4.15.0-1142.156 |
ubuntu/linux-azure-4.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-5.11 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-5.13 | <5.13.0-1022.26~20.04.1 | 5.13.0-1022.26~20.04.1 |
ubuntu/linux-azure-5.13 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-5.3 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-5.4 | <5.4.0-1078.81~18.04.1 | 5.4.0-1078.81~18.04.1 |
ubuntu/linux-azure-5.4 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-edge | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-fde | <5.4.0-1078.81 | 5.4.0-1078.81 |
ubuntu/linux-azure-fde | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-fde-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-azure-fips | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-bluefield | <5.4.0-1040.44 | 5.4.0-1040.44 |
ubuntu/linux-bluefield | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-dell300x | <4.15.0-1047.52 | 4.15.0-1047.52 |
ubuntu/linux-dell300x | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-fips | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp | <5.4.0-1073.78 | 5.4.0-1073.78 |
ubuntu/linux-gcp | <5.13.0-1024.29 | 5.13.0-1024.29 |
ubuntu/linux-gcp | <5.15.0-1004.7 | 5.15.0-1004.7 |
ubuntu/linux-gcp | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp | <4.15.0-1127.142~16.04.1 | 4.15.0-1127.142~16.04.1 |
ubuntu/linux-gcp-4.15 | <4.15.0-1127.142 | 4.15.0-1127.142 |
ubuntu/linux-gcp-4.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp-5.11 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp-5.13 | <5.13.0-1024.29~20.04.1 | 5.13.0-1024.29~20.04.1 |
ubuntu/linux-gcp-5.13 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp-5.3 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp-5.4 | <5.4.0-1073.78~18.04.1 | 5.4.0-1073.78~18.04.1 |
ubuntu/linux-gcp-5.8 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gcp-fips | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gke | <5.4.0-1071.76 | 5.4.0-1071.76 |
ubuntu/linux-gke | <5.15.0-1003.3 | 5.15.0-1003.3 |
ubuntu/linux-gke | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gke-4.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gke-5.0 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gke-5.3 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gke-5.4 | <5.4.0-1071.76~18.04.3 | 5.4.0-1071.76~18.04.3 |
ubuntu/linux-gke-5.4 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gkeop | <5.4.0-1040.41 | 5.4.0-1040.41 |
ubuntu/linux-gkeop | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gkeop-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-gkeop-5.4 | <5.4.0-1040.41~18.04.1 | 5.4.0-1040.41~18.04.1 |
ubuntu/linux-gkeop-5.4 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe | <4.15.0-184.194~16.04.1 | 4.15.0-184.194~16.04.1 |
ubuntu/linux-hwe-5.11 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe-5.13 | <5.13.0-40.45~20.04.1 | 5.13.0-40.45~20.04.1 |
ubuntu/linux-hwe-5.13 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe-5.4 | <5.4.0-110.124~18.04.1 | 5.4.0-110.124~18.04.1 |
ubuntu/linux-hwe-5.4 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe-5.8 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-hwe-edge | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-ibm | <5.4.0-1021.23 | 5.4.0-1021.23 |
ubuntu/linux-ibm | <5.15.0-1003.3 | 5.15.0-1003.3 |
ubuntu/linux-ibm | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-ibm-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-ibm-5.4 | <5.4.0-1021.23~18.04.1 | 5.4.0-1021.23~18.04.1 |
ubuntu/linux-ibm-5.4 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-intel | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-intel-5.13 | <5.13.0-1011.11 | 5.13.0-1011.11 |
ubuntu/linux-intel-5.13 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-intel-iotg | <5.15.0-1008.11 | 5.15.0-1008.11 |
ubuntu/linux-intel-iotg | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
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 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-iot | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-kvm | <4.15.0-1119.123 | 4.15.0-1119.123 |
ubuntu/linux-kvm | <5.4.0-1063.66 | 5.4.0-1063.66 |
ubuntu/linux-kvm | <5.13.0-1021.22 | 5.13.0-1021.22 |
ubuntu/linux-kvm | <5.15.0-1005.5 | 5.15.0-1005.5 |
ubuntu/linux-kvm | <5.19.0-1001.1 | 5.19.0-1001.1 |
ubuntu/linux-kvm | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-kvm | <4.4.0-1118.128 | 4.4.0-1118.128 |
ubuntu/linux-laptop | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-lowlatency | <5.15.0-27.28 | 5.15.0-27.28 |
ubuntu/linux-lowlatency | <5.19.0-1001.1 | 5.19.0-1001.1 |
ubuntu/linux-lowlatency | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-lowlatency-hwe-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-lowlatency-hwe-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-lts-xenial | <4.4.0-239.273~14.04.1 | 4.4.0-239.273~14.04.1 |
ubuntu/linux-lts-xenial | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-nvidia | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-nvidia-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-nvidia-6.8 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-nvidia-lowlatency | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem-5.10 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem-5.13 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem-5.14 | <5.14.0-1033.36 | 5.14.0-1033.36 |
ubuntu/linux-oem-5.17 | <5.17.0-1004.4 | 5.17.0-1004.4 |
ubuntu/linux-oem-5.17 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem-5.6 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem-6.8 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oem-osp1 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oracle | <4.15.0-1098.108 | 4.15.0-1098.108 |
ubuntu/linux-oracle | <5.4.0-1071.77 | 5.4.0-1071.77 |
ubuntu/linux-oracle | <5.13.0-1027.32 | 5.13.0-1027.32 |
ubuntu/linux-oracle | <5.15.0-1003.5 | 5.15.0-1003.5 |
ubuntu/linux-oracle | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oracle | <4.15.0-1098.108~16.04.1 | 4.15.0-1098.108~16.04.1 |
ubuntu/linux-oracle-5.0 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oracle-5.11 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oracle-5.13 | <5.13.0-1027.32~20.04.1 | 5.13.0-1027.32~20.04.1 |
ubuntu/linux-oracle-5.13 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oracle-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oracle-5.3 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-oracle-5.4 | <5.4.0-1071.77~18.04.1 | 5.4.0-1071.77~18.04.1 |
ubuntu/linux-oracle-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-raspi | <5.4.0-1060.68 | 5.4.0-1060.68 |
ubuntu/linux-raspi | <5.13.0-1025.27 | 5.13.0-1025.27 |
ubuntu/linux-raspi | <5.15.0-1006.6 | 5.15.0-1006.6 |
ubuntu/linux-raspi | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-raspi-5.4 | <5.4.0-1060.68~18.04.1 | 5.4.0-1060.68~18.04.1 |
ubuntu/linux-raspi-5.4 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-raspi2 | <4.15.0-1114.122 | 4.15.0-1114.122 |
ubuntu/linux-raspi2 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-raspi2-5.3 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-riscv | <5.13.0-1020.22 | 5.13.0-1020.22 |
ubuntu/linux-riscv | <5.15.0-1008.8 | 5.15.0-1008.8 |
ubuntu/linux-riscv | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-riscv-5.11 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-riscv-5.15 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-riscv-5.8 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-riscv-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-snapdragon | <4.15.0-1132.142 | 4.15.0-1132.142 |
ubuntu/linux-snapdragon | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-starfive | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-starfive-6.5 | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
ubuntu/linux-xilinx-zynqmp | <5.18~<5.4.188<5.15.32 | 5.18~ 5.4.188 5.15.32 |
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, 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)