net: ipip: require CAP_NET_ADMIN in the device netns for changelink
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.
CVE-2026-72053
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-2026-72053
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": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "a7d2642a50282322bc33f34ee7305f2b793df494",
"versionType": "git"
},
{
"status": "affected",
"version": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "068ad9b85f681755f751ebab82ae98146cec163d",
"versionType": "git"
},
{
"status": "affected",
"version": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "91571643e554ae89a91942380d5f5361fb7060a2",
"versionType": "git"
},
{
"status": "affected",
"version": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "983cc4aa7e6f633b34c3ee743771252d7afa9a90",
"versionType": "git"
},
{
"status": "affected",
"version": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "26544021d5c49cc6ae8a968ccb5033e6363854a4",
"versionType": "git"
},
{
"status": "affected",
"version": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "68cadc3698c7de88966d306d12ec9c6217da228a",
"versionType": "git"
},
{
"status": "affected",
"version": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "d49edcc65e0a37cc9b386a94415c5d6670ca8b71",
"versionType": "git"
},
{
"status": "affected",
"version": "6c742e714d8c282fd8f8b22d3e20b5141738c1ee",
"lessThan": "8211a26324667980a463c069469a818e71207e02",
"versionType": "git"
}
],
"programFiles": [
"net/ipv4/ipip.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.266",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.217",
"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/ipip.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-72053
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #41850 · Revision 1
- Added to Heist Feed
- Publisher date