Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ_CVE-2026-43134

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ\n\nThis adds a check for encryption key size upon receiving\nL2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which\nexpects L2CAP_CR_LE_BAD_KEY_SIZE.",
    "published": "2026-05-06T11:27:21.541Z",
    "modified": "2026-05-08T12:40:49.204Z",
    "type": "cve",
    "title": "Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6\nhttps://git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4\nhttps://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef\nhttps://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45\nhttps://git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaad\nhttps://git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041\nhttps://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97\nhttps://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104",
    "id": "CVE-2026-43134",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d\nLinux Linux 3.14",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
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        "availabilityImpact": "",
        "cvssV3": {
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d",
    "vendor": "Linux",
    "ai_description": "",
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    "ai_score": 0
}