Bluetooth: serialize accept_q access_CVE-2026-52918

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: serialize accept_q access\n\nbt_sock_poll() walks the accept queue without synchronization, while\nchild teardown can unlink the same socket and drop its last reference.\nThe unsynchronized accept queue walk has existed since the initial\nBluetooth import.\n\nProtect accept_q with a dedicated lock for queue updates and polling.\nAlso rework bt_accept_dequeue() to take temporary child references under\nthe queue lock before dropping it and locking the child socket.",
    "published": "2026-06-24T07:14:14.539Z",
    "modified": "2026-06-28T06:36:36.561Z",
    "type": "cve",
    "title": "Bluetooth: serialize accept_q access",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/d9ce4de05df2385c19e2c7d12f529144e1a44af1\nhttps://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336\nhttps://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a\nhttps://git.kernel.org/stable/c/be43e6b4043113c3b3cf887c3c8350f67140274c\nhttps://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5\nhttps://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3\nhttps://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c\nhttps://git.kernel.org/stable/c/e83f5e24da741fa9405aeeff00b08c5ee7c37b88",
    "id": "CVE-2026-52918",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\nLinux Linux 2.6.12",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
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        "confidentialityImpact": "",
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        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
    "vendor": "Linux",
    "ai_description": "",
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    "ai_score": 0
}