CVE-2026-72055
net: ip6_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: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink vti6_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 vti6_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
61220ab349485d911083d0b7990ccd3db6c63297 < f5254e7766b4ac02b66b2ccef896cd278503cb11 61220ab349485d911083d0b7990ccd3db6c63297 < ef897249dc957089e6f7f11ceea699e093ad51bd 61220ab349485d911083d0b7990ccd3db6c63297 < f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba 61220ab349485d911083d0b7990ccd3db6c63297 < c64b9ae7eb97e81d54b792910a3aeafd92566c79 61220ab349485d911083d0b7990ccd3db6c63297 < b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf 61220ab349485d911083d0b7990ccd3db6c63297 < 0b2f9c908f930ec4be17d389723f9a202d6a883c 61220ab349485d911083d0b7990ccd3db6c63297 < f97e93ebf2f9b8ef3b87f7a9371255e84d151587 61220ab349485d911083d0b7990ccd3db6c63297 < e2ac3b242c37dff323a964962e43854f4b1a2b79
Linux / Linux
3.15
References
git.kernel.org: https://git.kernel.org/stable/c/f5254e7766b4ac02b66b2ccef896cd278503cb11 git.kernel.org: https://git.kernel.org/stable/c/ef897249dc957089e6f7f11ceea699e093ad51bd git.kernel.org: https://git.kernel.org/stable/c/f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba git.kernel.org: https://git.kernel.org/stable/c/c64b9ae7eb97e81d54b792910a3aeafd92566c79 git.kernel.org: https://git.kernel.org/stable/c/b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf git.kernel.org: https://git.kernel.org/stable/c/0b2f9c908f930ec4be17d389723f9a202d6a883c git.kernel.org: https://git.kernel.org/stable/c/f97e93ebf2f9b8ef3b87f7a9371255e84d151587 git.kernel.org: https://git.kernel.org/stable/c/e2ac3b242c37dff323a964962e43854f4b1a2b79