openvswitch: validate MPLS set/set_masked payload length_CVE-2026-31679

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nopenvswitch: validate MPLS set/set_masked payload length\n\nvalidate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for\nSET/SET_MASKED actions. In action handling, OVS expects fixed-size\nMPLS key data (struct ovs_key_mpls).\n\nUse the already normalized key_len (masked case included) and reject\nnon-matching MPLS action key sizes.\n\nReject invalid MPLS action payload lengths early.",
    "published": "2026-04-25T08:46:55.584Z",
    "modified": "2026-04-27T14:04:59.625Z",
    "type": "cve",
    "title": "openvswitch: validate MPLS set/set_masked payload length",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f\nhttps://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61\nhttps://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a\nhttps://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700\nhttps://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997\nhttps://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036\nhttps://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e\nhttps://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6",
    "id": "CVE-2026-31679",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\nLinux Linux 5.5",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}