CVE-2026-52909
- Source
- https://cve.org/CVERecord?id=CVE-2026-52909
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-52909.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-52909
- Downstream
- Published
- 2026-06-19T14:43:33.214Z
- Modified
- 2026-06-23T04:02:17.792514728Z
- Summary
- ip6_vti: set netns_immutable on the fallback device.
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ip6vti: set netnsimmutable on the fallback device.
john1988 and Noam Rathaus reported that vti6initnet() does not set the netnsimmutable flag on the per-netns fallback tunnel device (ip6vti0).
Other similar tunnel drivers (like ip6tunnel, sit, ip6gre, and ip_tunnel) correctly set this flag during their fallback device initialization to prevent them from being moved to another network namespace.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52909.json" }- References
-
- https://git.kernel.org/stable/c/d289d5307762d1838aaece22c6b6fcad9e8865f9
- https://git.kernel.org/stable/c/dcdce3bc9f08026ff3739ee7339e1bef526fc5f3
- https://git.kernel.org/stable/c/ecf8904067dcba0dad86ece80874841e60317885
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52909.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-52909
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git