🛡️ CVE-2026-45917 on Ubuntu — linux
Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: do not keep dest_dst if dev is going down There is race between the netdev notifier ip_vs_dst_event() and the code that caches dst with dev that is going down. As the FIB can be notified for the closed device after our handler finishes, it is possible valid route to be returned and cached resuling in a leaked dev reference until the dest is not removed. To prevent new dest_dst to be attached to dest just after the handler dropped the old one, add a netif_running() check to make sure the notifier handler is not currently running for device that is closing.
Distribution advisory
This page covers CVE-2026-45917 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-1060.63~22.04.1; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
Affected software and timeline
Affected software: linux, linux-allwinner-5.19, linux-aws, linux-aws-5.0, linux-aws-5.11, linux-aws-5.13, linux-aws-5.15, linux-aws-5.19, linux-aws-5.3, linux-aws-5.4, linux-aws-5.8, linux-aws-6.14, linux-aws-6.17, linux-aws-6.2, linux-aws-6.5, linux-aws-6.8 (fixed in 6.8.0-1060.63~22.04.1), linux-aws-fips (fixed in 6.8.0-1060.63+fips1), linux-aws-hwe, linux-azure, linux-azure-4.15, linux-azure-5.11, linux-azure-5.13, linux-azure-5.15, linux-azure-5.19, linux-azure-5.3, linux-azure-5.4, linux-azure-5.8, linux-azure-6.11, linux-azure-6.14, linux-azure-6.17, linux-azure-6.2, linux-azure-6.5, linux-azure-6.8 (fixed in 6.8.0-1063.71~22.04.1), linux-azure-edge, linux-azure-fde, linux-azure-fde-5.15, linux-azure-fde-5.19, linux-azure-fde-6.14, linux-azure-fde-6.17, linux-azure-fde-6.2, linux-azure-fde-6.8 (fixed in 6.8.0-1062.69~22.04.1), linux-azure-fips (fixed in 6.8.0-1062.69+fips1), linux-azure-nvidia, linux-azure-nvidia-6.14, linux-bluefield, linux-fips (fixed in 6.8.0-134.134+fips1), linux-gcp, linux-gcp-4.15, linux-gcp-5.11, linux-gcp-5.13, linux-gcp-5.15, linux-gcp-5.19, linux-gcp-5.3, linux-gcp-5.4, linux-gcp-5.8, linux-gcp-6.11, linux-gcp-6.14, linux-gcp-6.17, linux-gcp-6.2, linux-gcp-6.5, linux-gcp-6.8 (fixed in 6.8.0-1063.69~22.04.1), linux-gcp-fips (fixed in 6.8.0-1063.69+fips1), linux-gke (fixed in 6.8.0-1058.64), linux-gke-4.15, linux-gke-5.15, linux-gke-5.4, linux-gkeop (fixed in 6.8.0-1045.48), linux-gkeop-5.15, linux-gkeop-5.4, linux-hwe, linux-hwe-5.11, linux-hwe-5.13, linux-hwe-5.15, linux-hwe-5.19, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-6.11, linux-hwe-6.14, linux-hwe-6.17, linux-hwe-6.2, linux-hwe-6.5, linux-hwe-6.8 (fixed in 6.8.0-136.136~22.04.1), linux-hwe-edge, linux-ibm (fixed in 6.8.0-1060.61), linux-ibm-5.15, linux-ibm-5.4, linux-ibm-6.8 (fixed in 6.8.0-1060.61~22.04.1), linux-intel-5.13, linux-intel-iot-realtime, linux-intel-iotg, linux-intel-iotg-5.15, linux-iot, linux-kvm, linux-lowlatency (fixed in 6.8.0-134.134.1), linux-lowlatency-hwe-5.15, linux-lowlatency-hwe-5.19, linux-lowlatency-hwe-6.11, linux-lowlatency-hwe-6.2, linux-lowlatency-hwe-6.5, linux-lowlatency-hwe-6.8 (fixed in 6.8.0-134.134.1~22.04.1), linux-lts-xenial, linux-nvidia (fixed in 6.8.0-1058.61), linux-nvidia-6.11, linux-nvidia-6.17, linux-nvidia-6.2, linux-nvidia-6.5, linux-nvidia-6.8 (fixed in 6.8.0-1058.61~22.04.1), linux-nvidia-lowlatency (fixed in 6.8.0-1058.61.1), linux-nvidia-tegra (fixed in 6.8.0-1029.30), linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, linux-oem, linux-oem-5.10, linux-oem-5.13, linux-oem-5.14, linux-oem-5.17, linux-oem-5.6, linux-oem-6.0, linux-oem-6.1, linux-oem-6.11, linux-oem-6.14, linux-oem-6.17, linux-oem-6.5, linux-oem-6.8, linux-oracle, linux-oracle-5.0, linux-oracle-5.11, linux-oracle-5.13, linux-oracle-5.15, linux-oracle-5.3, linux-oracle-5.4, linux-oracle-5.8, linux-oracle-6.14, linux-oracle-6.17, linux-oracle-6.5, linux-oracle-6.8 (fixed in 6.8.0-1057.58~22.04.1), linux-raspi, linux-raspi-5.4, linux-raspi-realtime (fixed in 6.8.0-2049.50), linux-raspi2, linux-realtime, linux-realtime-6.14, linux-realtime-6.17, linux-realtime-6.8 (fixed in 6.8.1-1055.56~22.04.1), linux-riscv, linux-riscv-5.11, linux-riscv-5.15, linux-riscv-5.19, linux-riscv-5.8, linux-riscv-6.14, linux-riscv-6.17, linux-riscv-6.5, linux-riscv-6.8 (fixed in 6.8.0-134.134~22.04.1), linux-starfive-5.19, linux-starfive-6.2, linux-starfive-6.5, linux-xilinx (fixed in 6.8.0-1032.33) and linux-xilinx-zynqmp. Published on 27 May 2026 and last revised on 11 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
www.cve.org (Report)
git.kernel.org (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
CVE-2026-45917 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | — |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | — |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | — |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | — |
| linux-aws-5.8 | — | — |
| linux-aws-6.14 | — | — |
| linux-aws-6.17 | — | — |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-6.8 | — | 6.8.0-1060.63~22.04.1 |
| linux-aws-fips | — | 6.8.0-1060.63+fips1 |
| linux-aws-hwe | — | — |
| linux-azure | — | — |
| linux-azure-4.15 | — | — |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | — |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | — |
| linux-azure-5.8 | — | — |
| linux-azure-6.11 | — | — |
| linux-azure-6.14 | — | — |
| linux-azure-6.17 | — | — |
| linux-azure-6.2 | — | — |
| linux-azure-6.5 | — | — |
| linux-azure-6.8 | — | 6.8.0-1063.71~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | — |
| linux-azure-fde-5.15 | — | — |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.14 | — | — |
| linux-azure-fde-6.17 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fde-6.8 | — | 6.8.0-1062.69~22.04.1 |
| linux-azure-fips | — | 6.8.0-1062.69+fips1 |
| linux-azure-nvidia | — | — |
| linux-azure-nvidia-6.14 | — | — |
| linux-bluefield | — | — |
| linux-fips | — | 6.8.0-134.134+fips1 |
| linux-gcp | — | — |
| linux-gcp-4.15 | — | — |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | — |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | — |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.11 | — | — |
| linux-gcp-6.14 | — | — |
| linux-gcp-6.17 | — | — |
| linux-gcp-6.2 | — | — |
| linux-gcp-6.5 | — | — |
| linux-gcp-6.8 | — | 6.8.0-1063.69~22.04.1 |
| linux-gcp-fips | — | 6.8.0-1063.69+fips1 |
| linux-gke | — | 6.8.0-1058.64 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 6.8.0-1045.48 |
| linux-gkeop-5.15 | — | — |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | — |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | — |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.11 | — | — |
| linux-hwe-6.14 | — | — |
| linux-hwe-6.17 | — | — |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-6.8 | — | 6.8.0-136.136~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 6.8.0-1060.61 |
| linux-ibm-5.15 | — | — |
| linux-ibm-5.4 | — | — |
| linux-ibm-6.8 | — | 6.8.0-1060.61~22.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | — |
| linux-intel-iotg | — | — |
| linux-intel-iotg-5.15 | — | — |
| linux-iot | — | — |
| linux-kvm | — | — |
| linux-lowlatency | — | 6.8.0-134.134.1 |
| linux-lowlatency-hwe-5.15 | — | — |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.11 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lowlatency-hwe-6.8 | — | 6.8.0-134.134.1~22.04.1 |
| linux-lts-xenial | — | — |
| linux-nvidia | — | 6.8.0-1058.61 |
| linux-nvidia-6.11 | — | — |
| linux-nvidia-6.17 | — | — |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| linux-nvidia-6.8 | — | 6.8.0-1058.61~22.04.1 |
| linux-nvidia-lowlatency | — | 6.8.0-1058.61.1 |
| linux-nvidia-tegra | — | 6.8.0-1029.30 |
| linux-nvidia-tegra-5.15 | — | — |
| linux-nvidia-tegra-igx | — | — |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | — |
| linux-oem-5.17 | — | — |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oem-6.1 | — | — |
| linux-oem-6.11 | — | — |
| linux-oem-6.14 | — | — |
| linux-oem-6.17 | — | — |
| linux-oem-6.5 | — | — |
| linux-oem-6.8 | — | — |
| linux-oracle | — | — |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | — |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | — |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.14 | — | — |
| linux-oracle-6.17 | — | — |
| linux-oracle-6.5 | — | — |
| linux-oracle-6.8 | — | 6.8.0-1057.58~22.04.1 |
| linux-raspi | — | — |
| linux-raspi-5.4 | — | — |
| linux-raspi-realtime | — | 6.8.0-2049.50 |
| linux-raspi2 | — | — |
| linux-realtime | — | — |
| linux-realtime-6.14 | — | — |
| linux-realtime-6.17 | — | — |
| linux-realtime-6.8 | — | 6.8.1-1055.56~22.04.1 |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | — |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.14 | — | — |
| linux-riscv-6.17 | — | — |
| linux-riscv-6.5 | — | — |
| linux-riscv-6.8 | — | 6.8.0-134.134~22.04.1 |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx | — | 6.8.0-1032.33 |
| linux-xilinx-zynqmp | — | — |
References
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