CVE-2026-52909
ip6_vti: set netns_immutable on the fallback device.
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 19, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
61220ab349485d911083d0b7990ccd3db6c63297 < ecf8904067dcba0dad86ece80874841e60317885 61220ab349485d911083d0b7990ccd3db6c63297 < dcdce3bc9f08026ff3739ee7339e1bef526fc5f3 61220ab349485d911083d0b7990ccd3db6c63297 < d289d5307762d1838aaece22c6b6fcad9e8865f9
Linux / Linux
3.15