{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72055",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.903Z",
        "datePublished": "2026-08-15T05:52:11.413Z",
        "dateUpdated": "2026-08-15T05:52:11.413Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-15T05:52:11.413Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink\n\nvti6_changelink() operates on at most two netns, dev_net(dev) and the\ntunnel link netns t->net. They differ once the device is created in or\nmoved to a netns other than the one the request runs in. The rtnl\nchangelink path checks CAP_NET_ADMIN only against dev_net(dev), so a\ncaller privileged there but not in t->net can rewrite a tunnel that\nlives in t->net.\n\nGate vti6_changelink() on rtnl_dev_link_net_capable() at its top,\nbefore any attribute is parsed."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv6/ip6_vti.c"
                    ],
                    "versions": [
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "f5254e7766b4ac02b66b2ccef896cd278503cb11",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "ef897249dc957089e6f7f11ceea699e093ad51bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "c64b9ae7eb97e81d54b792910a3aeafd92566c79",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "0b2f9c908f930ec4be17d389723f9a202d6a883c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "f97e93ebf2f9b8ef3b87f7a9371255e84d151587",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61220ab349485d911083d0b7990ccd3db6c63297",
                            "lessThan": "e2ac3b242c37dff323a964962e43854f4b1a2b79",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv6/ip6_vti.c"
                    ],
                    "versions": [
                        {
                            "version": "3.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2-rc1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "7.2-rc1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f5254e7766b4ac02b66b2ccef896cd278503cb11"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ef897249dc957089e6f7f11ceea699e093ad51bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c64b9ae7eb97e81d54b792910a3aeafd92566c79"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b2f9c908f930ec4be17d389723f9a202d6a883c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f97e93ebf2f9b8ef3b87f7a9371255e84d151587"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e2ac3b242c37dff323a964962e43854f4b1a2b79"
                }
            ],
            "title": "net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}