A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 5.8.0 (excluding) |
| Red Hat Enterprise Linux 8 | RedHat | kernel-rt-0:4.18.0-193.13.2.rt13.65.el8_2 | * |
| Red Hat Enterprise Linux 8 | RedHat | kernel-0:4.18.0-193.13.2.el8_2 | * |
| Red Hat Enterprise Linux 8 | RedHat | kpatch-patch | * |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | RedHat | kernel-0:4.18.0-80.27.1.el8_0 | * |
| Red Hat Enterprise Linux 8.1 Extended Update Support | RedHat | kernel-0:4.18.0-147.24.2.el8_1 | * |
| Red Hat Enterprise Linux 8.1 Extended Update Support | RedHat | kpatch-patch | * |
| Linux | Ubuntu | bionic | * |
| Linux | Ubuntu | eoan | * |
| Linux | Ubuntu | focal | * |
| Linux | Ubuntu | precise/esm | * |
| Linux | Ubuntu | upstream | * |
| Linux | Ubuntu | xenial | * |
| Linux-aws | Ubuntu | bionic | * |
| Linux-aws | Ubuntu | eoan | * |
| Linux-aws | Ubuntu | focal | * |
| Linux-aws | Ubuntu | trusty/esm | * |
| Linux-aws | Ubuntu | upstream | * |
| Linux-aws | Ubuntu | xenial | * |
| Linux-aws-5.0 | Ubuntu | bionic | * |
| Linux-aws-5.0 | Ubuntu | esm-infra/bionic | * |
| Linux-aws-5.0 | Ubuntu | upstream | * |
| Linux-aws-5.15 | Ubuntu | upstream | * |
| Linux-aws-5.3 | Ubuntu | bionic | * |
| Linux-aws-5.3 | Ubuntu | upstream | * |
| Linux-aws-5.4 | Ubuntu | bionic | * |
| Linux-aws-5.4 | Ubuntu | upstream | * |
| Linux-aws-6.8 | Ubuntu | upstream | * |
| Linux-aws-fips | Ubuntu | fips-updates/bionic | * |
| Linux-aws-fips | Ubuntu | fips-updates/focal | * |
| Linux-aws-fips | Ubuntu | fips/bionic | * |
| Linux-aws-fips | Ubuntu | fips/focal | * |
| Linux-aws-fips | Ubuntu | trusty | * |
| Linux-aws-fips | Ubuntu | upstream | * |
| Linux-aws-fips | Ubuntu | xenial | * |
| Linux-aws-hwe | Ubuntu | upstream | * |
| Linux-aws-hwe | Ubuntu | xenial | * |
| Linux-azure | Ubuntu | bionic | * |
| Linux-azure | Ubuntu | eoan | * |
| Linux-azure | Ubuntu | esm-infra/bionic | * |
| Linux-azure | Ubuntu | focal | * |
| Linux-azure | Ubuntu | trusty | * |
| Linux-azure | Ubuntu | trusty/esm | * |
| Linux-azure | Ubuntu | upstream | * |
| Linux-azure | Ubuntu | xenial | * |
| Linux-azure-4.15 | Ubuntu | bionic | * |
| Linux-azure-4.15 | Ubuntu | upstream | * |
| Linux-azure-5.15 | Ubuntu | upstream | * |
| Linux-azure-5.3 | Ubuntu | bionic | * |
| Linux-azure-5.3 | Ubuntu | upstream | * |
| Linux-azure-5.4 | Ubuntu | bionic | * |
| Linux-azure-5.4 | Ubuntu | upstream | * |
| Linux-azure-6.8 | Ubuntu | upstream | * |
| Linux-azure-edge | Ubuntu | bionic | * |
| Linux-azure-edge | Ubuntu | esm-infra/bionic | * |
| Linux-azure-edge | Ubuntu | upstream | * |
| Linux-azure-fde | Ubuntu | focal | * |
| Linux-azure-fde | Ubuntu | upstream | * |
| Linux-azure-fde-5.15 | Ubuntu | upstream | * |
| Linux-azure-fips | Ubuntu | fips-updates/bionic | * |
| Linux-azure-fips | Ubuntu | fips-updates/focal | * |
| Linux-azure-fips | Ubuntu | fips/bionic | * |
| Linux-azure-fips | Ubuntu | fips/focal | * |
| Linux-azure-fips | Ubuntu | trusty | * |
| Linux-azure-fips | Ubuntu | upstream | * |
| Linux-azure-fips | Ubuntu | xenial | * |
| Linux-bluefield | Ubuntu | upstream | * |
| Linux-fips | Ubuntu | fips-updates/bionic | * |
| Linux-fips | Ubuntu | fips-updates/xenial | * |
| Linux-fips | Ubuntu | fips/bionic | * |
| Linux-fips | Ubuntu | fips/focal | * |
| Linux-fips | Ubuntu | fips/xenial | * |
| Linux-fips | Ubuntu | upstream | * |
| Linux-gcp | Ubuntu | bionic | * |
| Linux-gcp | Ubuntu | eoan | * |
| Linux-gcp | Ubuntu | esm-infra/bionic | * |
| Linux-gcp | Ubuntu | focal | * |
| Linux-gcp | Ubuntu | upstream | * |
| Linux-gcp | Ubuntu | xenial | * |
| Linux-gcp-4.15 | Ubuntu | bionic | * |
| Linux-gcp-4.15 | Ubuntu | upstream | * |
| Linux-gcp-5.15 | Ubuntu | upstream | * |
| Linux-gcp-5.3 | Ubuntu | bionic | * |
| Linux-gcp-5.3 | Ubuntu | upstream | * |
| Linux-gcp-5.4 | Ubuntu | bionic | * |
| Linux-gcp-5.4 | Ubuntu | upstream | * |
| Linux-gcp-6.8 | Ubuntu | upstream | * |
| Linux-gcp-edge | Ubuntu | bionic | * |
| Linux-gcp-edge | Ubuntu | esm-infra/bionic | * |
| Linux-gcp-edge | Ubuntu | upstream | * |
| Linux-gcp-fips | Ubuntu | fips-updates/focal | * |
| Linux-gcp-fips | Ubuntu | fips/bionic | * |
| Linux-gcp-fips | Ubuntu | fips/focal | * |
| Linux-gcp-fips | Ubuntu | trusty | * |
| Linux-gcp-fips | Ubuntu | upstream | * |
| Linux-gcp-fips | Ubuntu | xenial | * |
| Linux-gke | Ubuntu | focal | * |
| Linux-gke | Ubuntu | upstream | * |
| Linux-gke | Ubuntu | xenial | * |
| Linux-gke-4.15 | Ubuntu | bionic | * |
| Linux-gke-4.15 | Ubuntu | upstream | * |
| Linux-gke-5.0 | Ubuntu | bionic | * |
| Linux-gke-5.0 | Ubuntu | upstream | * |
| Linux-gke-5.3 | Ubuntu | bionic | * |
| Linux-gke-5.3 | Ubuntu | upstream | * |
| Linux-gkeop | Ubuntu | upstream | * |
| Linux-gkeop-5.15 | Ubuntu | upstream | * |
| Linux-hwe | Ubuntu | bionic | * |
| Linux-hwe | Ubuntu | upstream | * |
| Linux-hwe | Ubuntu | xenial | * |
| Linux-hwe-5.15 | Ubuntu | upstream | * |
| Linux-hwe-5.4 | Ubuntu | bionic | * |
| Linux-hwe-5.4 | Ubuntu | upstream | * |
| Linux-hwe-6.8 | Ubuntu | upstream | * |
| Linux-hwe-edge | Ubuntu | bionic | * |
| Linux-hwe-edge | Ubuntu | esm-infra/bionic | * |
| Linux-hwe-edge | Ubuntu | esm-infra/xenial | * |
| Linux-hwe-edge | Ubuntu | upstream | * |
| Linux-hwe-edge | Ubuntu | xenial | * |
| Linux-ibm | Ubuntu | upstream | * |
| Linux-ibm-5.15 | Ubuntu | upstream | * |
| Linux-ibm-5.4 | Ubuntu | upstream | * |
| Linux-intel | Ubuntu | upstream | * |
| Linux-intel-iot-realtime | Ubuntu | upstream | * |
| Linux-intel-iotg | Ubuntu | upstream | * |
| Linux-intel-iotg-5.15 | Ubuntu | upstream | * |
| Linux-iot | Ubuntu | upstream | * |
| Linux-kvm | Ubuntu | bionic | * |
| Linux-kvm | Ubuntu | eoan | * |
| Linux-kvm | Ubuntu | focal | * |
| Linux-kvm | Ubuntu | upstream | * |
| Linux-kvm | Ubuntu | xenial | * |
| Linux-lowlatency | Ubuntu | upstream | * |
| Linux-lowlatency-hwe-5.15 | Ubuntu | upstream | * |
| Linux-lowlatency-hwe-6.8 | Ubuntu | upstream | * |
| Linux-lts-trusty | Ubuntu | precise/esm | * |
| Linux-lts-trusty | Ubuntu | upstream | * |
| Linux-lts-xenial | Ubuntu | trusty/esm | * |
| Linux-lts-xenial | Ubuntu | upstream | * |
| Linux-nvidia | Ubuntu | upstream | * |
| Linux-nvidia-6.5 | Ubuntu | upstream | * |
| Linux-nvidia-6.8 | Ubuntu | upstream | * |
| Linux-nvidia-lowlatency | Ubuntu | upstream | * |
| Linux-oem | Ubuntu | bionic | * |
| Linux-oem | Ubuntu | eoan | * |
| Linux-oem | Ubuntu | upstream | * |
| Linux-oem | Ubuntu | xenial | * |
| Linux-oem-5.6 | Ubuntu | focal | * |
| Linux-oem-5.6 | Ubuntu | upstream | * |
| Linux-oem-6.8 | Ubuntu | upstream | * |
| Linux-oem-osp1 | Ubuntu | bionic | * |
| Linux-oem-osp1 | Ubuntu | eoan | * |
| Linux-oem-osp1 | Ubuntu | upstream | * |
| Linux-oracle | Ubuntu | bionic | * |
| Linux-oracle | Ubuntu | eoan | * |
| Linux-oracle | Ubuntu | focal | * |
| Linux-oracle | Ubuntu | upstream | * |
| Linux-oracle | Ubuntu | xenial | * |
| Linux-oracle-5.0 | Ubuntu | bionic | * |
| Linux-oracle-5.0 | Ubuntu | esm-infra/bionic | * |
| Linux-oracle-5.0 | Ubuntu | upstream | * |
| Linux-oracle-5.15 | Ubuntu | upstream | * |
| Linux-oracle-5.3 | Ubuntu | bionic | * |
| Linux-oracle-5.3 | Ubuntu | upstream | * |
| Linux-oracle-5.4 | Ubuntu | bionic | * |
| Linux-oracle-5.4 | Ubuntu | upstream | * |
| Linux-oracle-6.8 | Ubuntu | upstream | * |
| Linux-raspi | Ubuntu | focal | * |
| Linux-raspi | Ubuntu | upstream | * |
| Linux-raspi-5.4 | Ubuntu | bionic | * |
| Linux-raspi-5.4 | Ubuntu | upstream | * |
| Linux-raspi-realtime | Ubuntu | upstream | * |
| Linux-raspi2 | Ubuntu | bionic | * |
| Linux-raspi2 | Ubuntu | eoan | * |
| Linux-raspi2 | Ubuntu | focal | * |
| Linux-raspi2 | Ubuntu | upstream | * |
| Linux-raspi2 | Ubuntu | xenial | * |
| Linux-raspi2-5.3 | Ubuntu | bionic | * |
| Linux-raspi2-5.3 | Ubuntu | upstream | * |
| Linux-realtime | Ubuntu | jammy | * |
| Linux-realtime | Ubuntu | upstream | * |
| Linux-riscv | Ubuntu | focal | * |
| Linux-riscv | Ubuntu | jammy | * |
| Linux-riscv | Ubuntu | upstream | * |
| Linux-riscv-5.15 | Ubuntu | upstream | * |
| Linux-riscv-6.8 | Ubuntu | upstream | * |
| Linux-snapdragon | Ubuntu | bionic | * |
| Linux-snapdragon | Ubuntu | upstream | * |
| Linux-snapdragon | Ubuntu | xenial | * |
| Linux-xilinx-zynqmp | Ubuntu | upstream | * |