ipv4: icmp: validate reply type before using icmp_pointers_CVE-2026-46037

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: icmp: validate reply type before using icmp_pointers\n\nExtended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type.\nThat value is outside the range covered by icmp_pointers[], which only\ndescribes the traditional ICMP types up to NR_ICMP_TYPES.\n\nAvoid consulting icmp_pointers[] for reply types outside that range, and\nuse array_index_nospec() for the remaining in-range lookup. Normal ICMP\nreplies keep their existing behavior unchanged.",
    "published": "2026-05-27T12:56:47.795Z",
    "modified": "2026-05-30T10:46:52.692Z",
    "type": "cve",
    "title": "ipv4: icmp: validate reply type before using icmp_pointers",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/92e7c209036dcc0e8ffdf806fdfd3645b263bea5\nhttps://git.kernel.org/stable/c/bc64a66e0b9ad937d3d49934242ee62b01ba9a94\nhttps://git.kernel.org/stable/c/c2178ff1c70ebfc2ab9651b230c58a34683db759\nhttps://git.kernel.org/stable/c/d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1\nhttps://git.kernel.org/stable/c/67bf002a2d7387a6312138210d0bd06e3cf4879b",
    "id": "CVE-2026-46037",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux d329ea5bd8845f0b196bf41b18b6173340d6e0e4\nLinux Linux d329ea5bd8845f0b196bf41b18b6173340d6e0e4\nLinux Linux d329ea5bd8845f0b196bf41b18b6173340d6e0e4\nLinux Linux d329ea5bd8845f0b196bf41b18b6173340d6e0e4\nLinux Linux d329ea5bd8845f0b196bf41b18b6173340d6e0e4\nLinux Linux 5.13",
    "sourceHref": "",
    "cvss": {
        "score": 8.2,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "d329ea5bd8845f0b196bf41b18b6173340d6e0e4",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_version": "",
    "ai_score": 0
}