{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-99070",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.389Z",
        "datePublished": "2026-10-23T12:23:13.342Z",
        "dateUpdated": "2026-10-30T12:41:29.857Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-30T12:41:29.857Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: do not warn on route notification size race\n\nfib6_info_hw_flags_set() sizes the skb with rt6_nlmsg_size() and later\nfills it with rt6_fill_node().  With nexthop compatibility mode enabled,\na concurrent replacement can grow the group between these independent\nsnapshots.  rt6_fill_node() can then legitimately return -EMSGSIZE, so\nthe warning does not prove a sizing bug.\n\nRemove the warning.  The existing error path still frees the skb and\nreports the error to listeners."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv6/route.c"
                    ],
                    "versions": [
                        {
                            "version": "907eea486888cfe118c19759bbc4b8fca2e004df",
                            "lessThan": "dac2b0328495971c7b417fd0143e53643343936e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "907eea486888cfe118c19759bbc4b8fca2e004df",
                            "lessThan": "24b2c95a046e15c9504a6d672b6b0b252952493f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "907eea486888cfe118c19759bbc4b8fca2e004df",
                            "lessThan": "8a3b935b6b6037eefb36bd27a60793a008358e8d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "907eea486888cfe118c19759bbc4b8fca2e004df",
                            "lessThan": "7b112bd43f1172fb152e848570a957467008a5ae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "907eea486888cfe118c19759bbc4b8fca2e004df",
                            "lessThan": "4ac7d92a4698e34e614c254359665b9de1f65283",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "907eea486888cfe118c19759bbc4b8fca2e004df",
                            "lessThan": "291fe0bafee78c95f9f2e7f579f17793fd5a1e5a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "907eea486888cfe118c19759bbc4b8fca2e004df",
                            "lessThan": "c97426ec649d99596d8969e1a052c16b14b7b485",
                            "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/route.c"
                    ],
                    "versions": [
                        {
                            "version": "5.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.224",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.11",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.12",
                                    "versionEndExcluding": "5.15.224"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "6.1.191"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "6.12.113"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "6.18.57"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "7.2.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "7.3"
                                }
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                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/dac2b0328495971c7b417fd0143e53643343936e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/24b2c95a046e15c9504a6d672b6b0b252952493f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8a3b935b6b6037eefb36bd27a60793a008358e8d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7b112bd43f1172fb152e848570a957467008a5ae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4ac7d92a4698e34e614c254359665b9de1f65283"
                },
                {
                    "url": "https://git.kernel.org/stable/c/291fe0bafee78c95f9f2e7f579f17793fd5a1e5a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c97426ec649d99596d8969e1a052c16b14b7b485"
                }
            ],
            "title": "ipv6: do not warn on route notification size race",
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                "engine": "bippy-1.2.0"
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    }
}