High · published June 19, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 3.15, < 5.10.260 | 5.10.260 |
| linux/linux_kernel | ≥ 5.11, < 5.15.211 | 5.15.211 |
| linux/linux_kernel | ≥ 5.16, < 6.1.177 | 6.1.177 |
| linux/linux_kernel | ≥ 6.2, < 6.6.144 | 6.6.144 |
| linux/linux_kernel | ≥ 6.7, < 6.12.95 | 6.12.95 |
| linux/linux_kernel | ≥ 6.13, < 6.18.36 | 6.18.36 |
| linux/linux_kernel | ≥ 6.19, < 7.0.13 | 7.0.13 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |