CVE-2026-72053net: ipip: 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: ipip: require CAP_NET_ADMIN in the device netns for changelink ipip_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 ipip_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) | from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before a7d2642a50282322bc33f34ee7305f2b793df494; from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before 068ad9b85f681755f751ebab82ae98146cec163d; from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before 91571643e554ae89a91942380d5f5361fb7060a2; from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before 983cc4aa7e6f633b34c3ee743771252d7afa9a90; from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before 26544021d5c49cc6ae8a968ccb5033e6363854a4; from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before 68cadc3698c7de88966d306d12ec9c6217da228a; from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before d49edcc65e0a37cc9b386a94415c5d6670ca8b71; from 6c742e714d8c282fd8f8b22d3e20b5141738c1ee before 8211a26324667980a463c069469a818e71207e02 | CNA record |
References
- https://git.kernel.org/stable/c/a7d2642a50282322bc33f34ee7305f2b793df494
- https://git.kernel.org/stable/c/068ad9b85f681755f751ebab82ae98146cec163d
- https://git.kernel.org/stable/c/91571643e554ae89a91942380d5f5361fb7060a2
- https://git.kernel.org/stable/c/983cc4aa7e6f633b34c3ee743771252d7afa9a90
- https://git.kernel.org/stable/c/26544021d5c49cc6ae8a968ccb5033e6363854a4
- https://git.kernel.org/stable/c/68cadc3698c7de88966d306d12ec9c6217da228a
- https://git.kernel.org/stable/c/d49edcc65e0a37cc9b386a94415c5d6670ca8b71
- https://git.kernel.org/stable/c/8211a26324667980a463c069469a818e71207e02
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.