CVE-2026-72054
net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink vti_changelink() operates on at most two netns, dev_net(dev) and the tunnel link netns t->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in t->net can rewrite a tunnel that lives in t->net. Gate vti_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 1caf737e625143c6f23c32d2b747b1a3e42e5699 895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 32edf8aa297745226854eda2d96c0fac66c1bb15 895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 973ead9e565423642e4533e1547b5d2c0476fb03 895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 33fd93961557ec8e3e9958995b28684c5f949394 895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 6d8bc0dc99472d62c57c2a3d436e6ab408592bda 895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 9571af2eec8023af9a1671b7f2cd4ab400011724 895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 88b33ee458a6ca5fbef6c53b9dba772da69dab68 895de9a3488abcdd186680f0af3cce7f2d4d4a6e < 95cceadbfd52d7239bd730afdda0655287d77425
Linux / Linux
3.15
References
git.kernel.org: https://git.kernel.org/stable/c/1caf737e625143c6f23c32d2b747b1a3e42e5699 git.kernel.org: https://git.kernel.org/stable/c/32edf8aa297745226854eda2d96c0fac66c1bb15 git.kernel.org: https://git.kernel.org/stable/c/973ead9e565423642e4533e1547b5d2c0476fb03 git.kernel.org: https://git.kernel.org/stable/c/33fd93961557ec8e3e9958995b28684c5f949394 git.kernel.org: https://git.kernel.org/stable/c/6d8bc0dc99472d62c57c2a3d436e6ab408592bda git.kernel.org: https://git.kernel.org/stable/c/9571af2eec8023af9a1671b7f2cd4ab400011724 git.kernel.org: https://git.kernel.org/stable/c/88b33ee458a6ca5fbef6c53b9dba772da69dab68 git.kernel.org: https://git.kernel.org/stable/c/95cceadbfd52d7239bd730afdda0655287d77425