Description
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.
References (8)
Core 8
Core References
Scores
CVSS v3
7.8
EPSS
0.0012
EPSS Percentile
2.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
Status
published
Products (27)
linux/Kernel
3.15.0 - 5.10.260linux
linux/Kernel
5.11.0 - 5.15.211linux
linux/Kernel
5.16.0 - 6.1.177linux
linux/Kernel
6.13.0 - 6.18.36linux
linux/Kernel
6.19.0 - 7.0.13linux
linux/Kernel
6.2.0 - 6.6.144linux
linux/Kernel
6.7.0 - 6.12.95linux
Linux/Linux
< 3.15
Linux/Linux
3.15
Linux/Linux
5.10.260 - 5.10.*
... and 17 more
Published
Jun 19, 2026
Tracked Since
Jun 19, 2026