bpf: Fix tcx/netkit detach permissions when prog fd isn’t given_CVE-2026-45932

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix tcx/netkit detach permissions when prog fd isn't given\n\nThis commit fixes a security issue where BPF_PROG_DETACH on tcx or\nnetkit devices could be executed by any user when no program fd was\nprovided, bypassing permission checks. The fix adds a capability\ncheck for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.",
    "published": "2026-05-27T12:17:50.353Z",
    "modified": "2026-05-30T10:45:59.674Z",
    "type": "cve",
    "title": "bpf: Fix tcx/netkit detach permissions when prog fd isn't given",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/4e0772cded109c238411f2fac36ac39302758b81\nhttps://git.kernel.org/stable/c/3f04cc1e5374da4c5e791ae010a06cfea7bacbe6\nhttps://git.kernel.org/stable/c/ae23bc81ddf7c17b663c4ed1b21e35527b0a7131",
    "id": "CVE-2026-45932",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux e420bed025071a623d2720a92bc2245c84757ecb\nLinux Linux e420bed025071a623d2720a92bc2245c84757ecb\nLinux Linux e420bed025071a623d2720a92bc2245c84757ecb\nLinux Linux 6.6",
    "sourceHref": "",
    "cvss": {
        "score": 7.3,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/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": {
            "version": "",
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            "baseScore": 0,
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            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "e420bed025071a623d2720a92bc2245c84757ecb",
    "vendor": "Linux",
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    "ai_score": 0
}