HID: bpf: prevent buffer overflow in hid_hw_request_CVE-2026-31401

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: prevent buffer overflow in hid_hw_request\n\nright now the returned value is considered to be always valid. However,\nwhen playing with HID-BPF, the return value can be arbitrary big,\nbecause it's the return value of dispatch_hid_bpf_raw_requests(), which\ncalls the struct_ops and we have no guarantees that the value makes\nsense.",
    "published": "2026-04-03T15:16:04.903Z",
    "modified": "2026-04-27T14:02:48.567Z",
    "type": "cve",
    "title": "HID: bpf: prevent buffer overflow in hid_hw_request",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510\nhttps://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1\nhttps://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7\nhttps://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645",
    "id": "CVE-2026-31401",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\nLinux Linux 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\nLinux Linux 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\nLinux Linux 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\nLinux Linux 6.11",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}