smb: client: fix potential UAF and double free in smb2_open_file()_CVE-2026-45972

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential UAF and double free in smb2_open_file()\n\nZero out @err_iov and @err_buftype before retrying SMB2_open() to\nprevent an UAF bug if @data != NULL, otherwise a double free.",
    "published": "2026-05-27T12:18:31.500Z",
    "modified": "2026-05-30T10:46:21.265Z",
    "type": "cve",
    "title": "smb: client: fix potential UAF and double free in smb2_open_file()",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74\nhttps://git.kernel.org/stable/c/7425453ea16dbc3bbb0f6cac4d60b537e5e4d151\nhttps://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0\nhttps://git.kernel.org/stable/c/e66dcf7bb9c4df5582c82bc3582725abcbfbea73\nhttps://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81\nhttps://git.kernel.org/stable/c/ebbbc4bfad4cb355d17c671223d0814ee3ef4eda",
    "id": "CVE-2026-45972",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 743f70406264348c0830f38409eb6c40a42fb2db\nLinux Linux 3a6d6b332f92990958602c1e35ce0173e2dd62e9\nLinux Linux b64e3b5d8d759dd4333992e4ba4dadf9359952c8\nLinux Linux 9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5\nLinux Linux e3a43633023e3cacaca60d4b8972d084a2b06236\nLinux Linux e3a43633023e3cacaca60d4b8972d084a2b06236\nLinux Linux 6.1.163\nLinux Linux 6.6.124\nLinux Linux 6.12.70\nLinux Linux 6.18.10\nLinux Linux 6.19",
    "sourceHref": "",
    "cvss": {
        "score": 9.8,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/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": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "743f70406264348c0830f38409eb6c40a42fb2db",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}