Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.
The product does not properly “clean up” and remove temporary or supporting resources after they have been used.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 3.2 (including) | 4.9.135 (excluding) |
| Linux_kernel | Linux | 4.9.136 (including) | 4.14.78 (excluding) |
| Linux_kernel | Linux | 4.14.79 (including) | 4.18.16 (excluding) |
| Linux_kernel | Linux | 4.18.17 (including) | 4.19 (excluding) |
| Red Hat Enterprise Linux 7 | RedHat | kernel-rt-0:3.10.0-1062.rt56.1022.el7 | * |
| Red Hat Enterprise Linux 7 | RedHat | kernel-alt-0:4.14.0-115.7.1.el7a | * |
| Red Hat Enterprise Linux 7 | RedHat | kernel-0:3.10.0-1062.el7 | * |
| Red Hat Enterprise Linux 7.4 Advanced Update Support | RedHat | kernel-0:3.10.0-693.62.1.el7 | * |
| Red Hat Enterprise Linux 7.4 Telco Extended Update Support | RedHat | kernel-0:3.10.0-693.62.1.el7 | * |
| Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions | RedHat | kernel-0:3.10.0-693.62.1.el7 | * |
| Red Hat Enterprise Linux 7.5 Extended Update Support | RedHat | kernel-0:3.10.0-862.46.1.el7 | * |
| Red Hat Enterprise Linux 7.6 Extended Update Support | RedHat | kernel-0:3.10.0-957.43.1.el7 | * |
| Red Hat Enterprise MRG 2 | RedHat | kernel-rt-1:3.10.0-693.62.1.rt56.659.el6rt | * |
| Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS | RedHat | kernel-0:3.10.0-957.43.1.el7 | * |
| Linux | Ubuntu | bionic | * |
| Linux | Ubuntu | cosmic | * |
| Linux | Ubuntu | precise/esm | * |
| Linux | Ubuntu | trusty | * |
| Linux | Ubuntu | upstream | * |
| Linux | Ubuntu | xenial | * |
| Linux-aws | Ubuntu | bionic | * |
| Linux-aws | Ubuntu | cosmic | * |
| Linux-aws | Ubuntu | trusty | * |
| Linux-aws | Ubuntu | upstream | * |
| Linux-aws | Ubuntu | xenial | * |
| Linux-aws-5.0 | Ubuntu | upstream | * |
| Linux-aws-5.15 | Ubuntu | upstream | * |
| Linux-aws-5.3 | Ubuntu | upstream | * |
| Linux-aws-5.4 | Ubuntu | upstream | * |
| Linux-aws-6.8 | Ubuntu | upstream | * |
| 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 | cosmic | * |
| Linux-azure | Ubuntu | trusty | * |
| Linux-azure | Ubuntu | upstream | * |
| Linux-azure | Ubuntu | xenial | * |
| Linux-azure-4.15 | Ubuntu | upstream | * |
| Linux-azure-5.15 | Ubuntu | upstream | * |
| Linux-azure-5.3 | Ubuntu | upstream | * |
| Linux-azure-5.4 | Ubuntu | upstream | * |
| Linux-azure-6.8 | Ubuntu | upstream | * |
| Linux-azure-edge | Ubuntu | 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 | trusty | * |
| Linux-azure-fips | Ubuntu | upstream | * |
| Linux-azure-fips | Ubuntu | xenial | * |
| Linux-bluefield | Ubuntu | upstream | * |
| Linux-euclid | Ubuntu | upstream | * |
| Linux-euclid | Ubuntu | xenial | * |
| Linux-fips | Ubuntu | fips-updates/xenial | * |
| Linux-fips | Ubuntu | fips/xenial | * |
| Linux-fips | Ubuntu | upstream | * |
| Linux-flo | Ubuntu | trusty | * |
| Linux-flo | Ubuntu | upstream | * |
| Linux-flo | Ubuntu | xenial | * |
| Linux-gcp | Ubuntu | bionic | * |
| Linux-gcp | Ubuntu | cosmic | * |
| Linux-gcp | Ubuntu | upstream | * |
| Linux-gcp | Ubuntu | xenial | * |
| Linux-gcp-4.15 | Ubuntu | upstream | * |
| Linux-gcp-5.15 | Ubuntu | upstream | * |
| Linux-gcp-5.3 | Ubuntu | upstream | * |
| Linux-gcp-5.4 | Ubuntu | upstream | * |
| Linux-gcp-6.8 | Ubuntu | upstream | * |
| Linux-gcp-edge | Ubuntu | bionic | * |
| Linux-gcp-edge | Ubuntu | upstream | * |
| Linux-gcp-fips | Ubuntu | trusty | * |
| Linux-gcp-fips | Ubuntu | upstream | * |
| Linux-gcp-fips | Ubuntu | xenial | * |
| Linux-gke | Ubuntu | upstream | * |
| Linux-gke | Ubuntu | xenial | * |
| Linux-gke-4.15 | Ubuntu | upstream | * |
| Linux-gke-5.0 | Ubuntu | upstream | * |
| Linux-gke-5.3 | Ubuntu | upstream | * |
| Linux-gkeop | Ubuntu | upstream | * |
| Linux-gkeop-5.15 | Ubuntu | upstream | * |
| Linux-goldfish | Ubuntu | trusty | * |
| Linux-goldfish | Ubuntu | upstream | * |
| Linux-goldfish | Ubuntu | xenial | * |
| Linux-grouper | Ubuntu | trusty | * |
| Linux-grouper | Ubuntu | upstream | * |
| Linux-hwe | Ubuntu | upstream | * |
| Linux-hwe | Ubuntu | xenial | * |
| Linux-hwe-5.15 | Ubuntu | upstream | * |
| Linux-hwe-5.4 | Ubuntu | upstream | * |
| Linux-hwe-6.8 | Ubuntu | upstream | * |
| 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 | cosmic | * |
| 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 | upstream | * |
| Linux-lts-utopic | Ubuntu | trusty | * |
| Linux-lts-utopic | Ubuntu | trusty/esm | * |
| Linux-lts-utopic | Ubuntu | upstream | * |
| Linux-lts-vivid | Ubuntu | trusty | * |
| Linux-lts-vivid | Ubuntu | trusty/esm | * |
| Linux-lts-vivid | Ubuntu | upstream | * |
| Linux-lts-wily | Ubuntu | trusty | * |
| Linux-lts-wily | Ubuntu | trusty/esm | * |
| Linux-lts-wily | Ubuntu | upstream | * |
| Linux-lts-xenial | Ubuntu | trusty | * |
| Linux-lts-xenial | Ubuntu | upstream | * |
| Linux-maguro | Ubuntu | trusty | * |
| Linux-maguro | Ubuntu | upstream | * |
| Linux-mako | Ubuntu | trusty | * |
| Linux-mako | Ubuntu | upstream | * |
| Linux-mako | Ubuntu | xenial | * |
| Linux-manta | Ubuntu | trusty | * |
| Linux-manta | 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 | cosmic | * |
| Linux-oem | Ubuntu | upstream | * |
| Linux-oem | Ubuntu | xenial | * |
| Linux-oem-5.6 | Ubuntu | upstream | * |
| Linux-oem-6.11 | Ubuntu | upstream | * |
| Linux-oem-6.8 | Ubuntu | upstream | * |
| Linux-oem-osp1 | Ubuntu | upstream | * |
| Linux-oracle | Ubuntu | bionic | * |
| Linux-oracle | Ubuntu | cosmic | * |
| Linux-oracle | Ubuntu | upstream | * |
| Linux-oracle | Ubuntu | xenial | * |
| Linux-oracle-5.0 | Ubuntu | upstream | * |
| Linux-oracle-5.15 | Ubuntu | upstream | * |
| Linux-oracle-5.3 | Ubuntu | upstream | * |
| Linux-oracle-5.4 | Ubuntu | upstream | * |
| Linux-oracle-6.8 | Ubuntu | upstream | * |
| Linux-raspi | Ubuntu | upstream | * |
| Linux-raspi-5.4 | Ubuntu | upstream | * |
| Linux-raspi-realtime | Ubuntu | upstream | * |
| Linux-raspi2 | Ubuntu | bionic | * |
| Linux-raspi2 | Ubuntu | cosmic | * |
| Linux-raspi2 | Ubuntu | upstream | * |
| Linux-raspi2 | Ubuntu | xenial | * |
| Linux-raspi2-5.3 | Ubuntu | upstream | * |
| Linux-realtime | Ubuntu | jammy | * |
| Linux-realtime | Ubuntu | upstream | * |
| 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 | * |