CVE-2026-72054net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 895de9a3488abcdd186680f0af3cce7f2d4d4a6e builds before 1caf737e625143c6f23c32d2b747b1a3e42e5699; 895de9a3488abcdd186680f0af3cce7f2d4d4a6e builds before 32edf8aa297745226854eda2d96c0fac66c1bb15; from 895de9a3488abcdd186680f0af3cce7f2d4d4a6e before 973ead9e565423642e4533e1547b5d2c0476fb03; 895de9a3488abcdd186680f0af3cce7f2d4d4a6e builds before 33fd93961557ec8e3e9958995b28684c5f949394; 895de9a3488abcdd186680f0af3cce7f2d4d4a6e builds before 6d8bc0dc99472d62c57c2a3d436e6ab408592bda; from 895de9a3488abcdd186680f0af3cce7f2d4d4a6e before 9571af2eec8023af9a1671b7f2cd4ab400011724; 895de9a3488abcdd186680f0af3cce7f2d4d4a6e builds before 88b33ee458a6ca5fbef6c53b9dba772da69dab68; 895de9a3488abcdd186680f0af3cce7f2d4d4a6e builds before 95cceadbfd52d7239bd730afdda0655287d77425 | CNA record |
References
- https://git.kernel.org/stable/c/1caf737e625143c6f23c32d2b747b1a3e42e5699
- https://git.kernel.org/stable/c/32edf8aa297745226854eda2d96c0fac66c1bb15
- https://git.kernel.org/stable/c/973ead9e565423642e4533e1547b5d2c0476fb03
- https://git.kernel.org/stable/c/33fd93961557ec8e3e9958995b28684c5f949394
- https://git.kernel.org/stable/c/6d8bc0dc99472d62c57c2a3d436e6ab408592bda
- https://git.kernel.org/stable/c/9571af2eec8023af9a1671b7f2cd4ab400011724
- https://git.kernel.org/stable/c/88b33ee458a6ca5fbef6c53b9dba772da69dab68
- https://git.kernel.org/stable/c/95cceadbfd52d7239bd730afdda0655287d77425
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.