In the Linux kernel, the following vulnerability has been resolved:
ip6_vti: set netns_immutable on the fallback device.
john1988 and Noam Rathaus reported that vti6_init_net() does not set the netns_immutable flag on the per-netns fallback tunnel device (ip6_vti0).
Other similar tunnel drivers (like ip6_tunnel, sit, ip6_gre, and ip_tunnel) correctly set this flag during their fallback device initialization to prevent them from being moved to another network namespace.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perfUpgrade bpftool-debuginfoUpgrade bpftoolUpgrade python-perfUpgrade kernel-livepatch-5.15.211-149.249Upgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-develUpgrade kernel-toolsUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.10.260-259.1053Upgrade python-perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernelUpgrade kernel-debuginfo-common-x86_64 | Jul 21, 2026 | Jul 21, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.18-tools-develUpgrade kernel-livepatch-6.18.36-69.134Upgrade microvm-kernel6.18Upgrade kernel6.18-modules-extra-commonUpgrade perf6.18Upgrade python3-perf6.18Upgrade bpftool6.18Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-tools-debuginfoUpgrade perf6.18-debuginfoUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18Upgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.18-headersUpgrade kernel6.18-develUpgrade kernel6.18-modules-extraUpgrade kernel6.18-debuginfo-common-aarch64 | Jul 21, 2026 | Jun 19, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 5, 2026 | Jul 5, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jun 19, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-oem-26.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-raspiUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-generic-64k-7.0Upgrade linux-image-7.0.0-31-genericUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-gke-64k-7.0Upgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-oem-7.0Upgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-azure-7.0Upgrade linux-image-gkeUpgrade linux-image-aws-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-generic-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-raspi-realtimeUpgrade linux-image-gcpUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-oem-26.04aUpgrade linux-image-azureUpgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-6.8.0-1035-nvidia-tegraUpgrade linux-image-7.0.0-1012-awsUpgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1013-oemUpgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-oem-26.04bUpgrade linux-image-oracleUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-awsUpgrade linux-image-gke-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-azure-lts-26.04Upgrade linux-image-realtime-7.0Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-7.0Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-6.8.0-1035-nvidia-tegra-rtUpgrade linux-image-raspi-7.0Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-gke-64kUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-realtimeUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-genericUpgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-virtualUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-nvidiaUpgrade linux-image-ibmUpgrade linux-image-virtual-7.0Upgrade linux-image-nvidia-bos | Sep 14, 2026 | Sep 7, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 13, 2026 | Jun 19, 2026 |
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