--- title: "CVE-2026-89438\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2026-89438?format=md keywords: index, follow --- # CVE-2026-89438 Publication date 14 September 2026 Last updated 14 September 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Needs evaluation | | linux-hwe | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored replaced by linux-hwe-5.4 | | 16.04 LTS xenial | Needs evaluation | | linux-hwe-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-hwe-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-hwe-5.11 | | linux-hwe-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-hwe-5.13 | | linux-hwe-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-hwe-5.15 | | linux-hwe-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-hwe-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-hwe-6.2 | | linux-hwe-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-hwe-6.5 | | linux-hwe-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-hwe-6.8 | | linux-hwe-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-hwe-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-hwe-6.14 | | 22.04 LTS jammy | Not in release | | linux-hwe-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-hwe-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-hwe-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-hwe-edge | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-hwe-5.4 | | 16.04 LTS xenial | Ignored superseded by linux-hwe | | linux-lts-xenial | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 14.04 LTS trusty | Needs evaluation | | linux-kvm | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | linux-allwinner-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-aws | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Needs evaluation | | linux-aws-5.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-aws-5.3 | | linux-aws-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-aws-5.4 | | linux-aws-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-aws-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-aws-5.11 | | linux-aws-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-aws-5.13 | | linux-aws-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-aws-5.15 | | linux-aws-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-aws-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-aws-6.2 | | linux-aws-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-aws-6.5 | | linux-aws-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-aws-6.8 | | linux-aws-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-aws-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-aws-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-aws-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-aws-hwe | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 16.04 LTS xenial | Needs evaluation | | linux-azure | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Ignored superseded by linux-azure-5.3 | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Needs evaluation | | linux-azure-4.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-azure-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-azure-5.4 | | linux-azure-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-azure-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-azure-5.11 | | linux-azure-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-azure-5.13 | | linux-azure-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-azure-5.15 | | linux-azure-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-azure-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-6.2 | | linux-azure-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-6.5 | | linux-azure-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-6.8 | | linux-azure-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-azure-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-azure-6.14 | | 22.04 LTS jammy | Not in release | | linux-azure-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-fde | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Ignored superseded by linux-azure-fde-5.15 | | linux-azure-fde-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-azure-fde-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-azure-fde-6.2 | | linux-azure-fde-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored replaced by linux-azure-6.5 | | linux-azure-fde-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-azure-fde-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-fde-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-fde-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-nvidia | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-azure-nvidia-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-bluefield | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-azure-edge | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-azure-5.3 | | linux-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | 16.04 LTS xenial FIPS | Needs evaluation | | linux-aws-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | linux-azure-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | linux-gcp-fips | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal FIPS | Needs evaluation | | 18.04 LTS bionic FIPS | Needs evaluation | | linux-gcp | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Ignored superseded by linux-gcp-5.3 | | 16.04 LTS xenial | Needs evaluation | | linux-gcp-4.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-gcp-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-gcp-5.4 | | linux-gcp-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-gcp-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-gcp-5.11 | | linux-gcp-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-gcp-5.13 | | linux-gcp-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-gcp-5.15 | | linux-gcp-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-gcp-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-gcp-6.2 | | linux-gcp-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-gcp-6.5 | | linux-gcp-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-gcp-6.8 | | linux-gcp-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-gcp-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-gcp-6.14 | | 22.04 LTS jammy | Not in release | | linux-gcp-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-gcp-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-gcp-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-gke | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Ignored end of kernel support | | linux-gke-4.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-gke-5.0 | | linux-gke-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored end of kernel support | | linux-gke-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of kernel support | | linux-gkeop | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Ignored end of kernel support | | linux-gkeop-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored end of kernel support | | linux-gkeop-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of kernel support | | linux-ibm | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | linux-ibm-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-ibm-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-ibm-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-intel-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored end of kernel support | | linux-intel-iotg | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-intel-iotg-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-iot | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-intel-iot-realtime | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy Real-time | Needs evaluation | | linux-lowlatency | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | linux-lowlatency-hwe-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-lowlatency-hwe-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.2 | | linux-lowlatency-hwe-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.5 | | linux-lowlatency-hwe-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.8 | | linux-lowlatency-hwe-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-lowlatency-hwe-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored replaced by linux-hwe-6.14 | | 22.04 LTS jammy | Not in release | | linux-nvidia | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | linux-nvidia-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-nvidia-6.5 | | linux-nvidia-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-nvidia-6.8 | | linux-nvidia-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-nvidia-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored end of kernel support | | 22.04 LTS jammy | Not in release | | linux-nvidia-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-nvidia-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-nvidia-bos | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-nvidia-lowlatency | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-nvidia-tegra | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | linux-nvidia-tegra-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-nvidia-tegra-igx | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-oracle | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | linux-oracle-5.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-oracle-5.3 | | linux-oracle-5.3 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored superseded by linux-oracle-5.4 | | linux-oracle-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-oracle-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oracle-5.11 | | linux-oracle-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oracle-5.13 | | linux-oracle-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oracle-5.15 | | linux-oracle-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-oracle-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oracle-6.8 | | linux-oracle-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-oracle-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oracle-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oracle-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oem | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Ignored replaced by linux-hwe-5.4 | | linux-oem-5.6 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oem-5.10 | | linux-oem-5.10 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oem-5.13 | | linux-oem-5.13 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-oem-5.14 | | linux-oem-5.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored replaced by linux-hwe-5.15 | | linux-oem-5.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.1 | | linux-oem-6.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.1 | | linux-oem-6.1 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.5 | | linux-oem-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-oem-6.8 | | linux-oem-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-oem-6.14 | | 22.04 LTS jammy | Not in release | | linux-oem-6.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-oem-6.14 | | 22.04 LTS jammy | Not in release | | linux-oem-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oem-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-oem-7.0 | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-raspi | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | linux-raspi2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored replaced by linux-raspi | | linux-raspi-5.4 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 18.04 LTS bionic | Needs evaluation | | linux-raspi-realtime | 26.04 LTS resolute | Not in release | | 24.04 LTS noble Real-time | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-realtime | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble Real-time | Needs evaluation | | 22.04 LTS jammy Real-time | Needs evaluation | | linux-realtime-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-realtime-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | linux-riscv | 26.04 LTS resolute | Needs evaluation | | 24.04 LTS noble | Ignored replaced by linux-riscv-6.14 | | 22.04 LTS jammy | Ignored end of kernel support | | 20.04 LTS focal | Ignored superseded by linux-riscv-5.8 | | linux-riscv-5.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-riscv-5.11 | | linux-riscv-5.11 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Ignored superseded by linux-riscv-5.13 | | linux-riscv-5.15 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | | 20.04 LTS focal | Needs evaluation | | linux-riscv-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-riscv-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-riscv-6.8 | | linux-riscv-6.8 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | linux-riscv-6.14 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Ignored superseded by linux-riscv-6.17 | | 22.04 LTS jammy | Not in release | | linux-riscv-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-riscv-7.0 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-starfive-5.19 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-starfive-6.2 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored superseded by linux-starfive-6.5 | | linux-starfive-6.5 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Ignored end of kernel support | | linux-xilinx | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Needs evaluation | | 22.04 LTS jammy | Not in release | | linux-xilinx-zynqmp | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Needs evaluation | | 20.04 LTS focal | Needs evaluation | | linux-realtime-6.17 | 26.04 LTS resolute | Not in release | | 24.04 LTS noble | Not in release | | 22.04 LTS jammy | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2026-89438?format=md#patch-details) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | linux | * Introduced by [12a7d2c](https://git.kernel.org/linus/12a7d2cb811dd8a884dea088a2701fcb8d00136e), fixed by [124e2db](https://git.kernel.org/linus/124e2dbabe460c2a6e7440f4ad8af560131295c9) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-89438) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-89438) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-89438) * [Debian](https://security-tracker.debian.org/tracker/CVE-2026-89438) ### Other references * * * * * *