net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink
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.
CVE-2026-72054
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-72054
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "1caf737e625143c6f23c32d2b747b1a3e42e5699",
"versionType": "git"
},
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "32edf8aa297745226854eda2d96c0fac66c1bb15",
"versionType": "git"
},
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "973ead9e565423642e4533e1547b5d2c0476fb03",
"versionType": "git"
},
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "33fd93961557ec8e3e9958995b28684c5f949394",
"versionType": "git"
},
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "6d8bc0dc99472d62c57c2a3d436e6ab408592bda",
"versionType": "git"
},
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "9571af2eec8023af9a1671b7f2cd4ab400011724",
"versionType": "git"
},
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "88b33ee458a6ca5fbef6c53b9dba772da69dab68",
"versionType": "git"
},
{
"status": "affected",
"version": "895de9a3488abcdd186680f0af3cce7f2d4d4a6e",
"lessThan": "95cceadbfd52d7239bd730afdda0655287d77425",
"versionType": "git"
}
],
"programFiles": [
"net/ipv4/ip_vti.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/ipv4/ip_vti.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-72054
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #41851 · Revision 1
- Added to Heist Feed
- Publisher date