smb/client: fix out-of-bounds read in symlink_data()_CVE-2026-46185

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix out-of-bounds read in symlink_data()\n\nSince smb2_check_message() returns success without length validation for\nthe symlink error response, in symlink_data() it is possible for\niov->iov_len to be smaller than sizeof(struct smb2_err_rsp). If the buffer\nonly contains the base SMB2 header (64 bytes), accessing\nerr->ErrorContextCount (at offset 66) or err->ByteCount later in\nsymlink_data() will cause an out-of-bounds read.",
    "published": "2026-05-28T09:36:39.318Z",
    "modified": "2026-05-30T10:48:51.359Z",
    "type": "cve",
    "title": "smb/client: fix out-of-bounds read in symlink_data()",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c\nhttps://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c\nhttps://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212\nhttps://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6\nhttps://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20",
    "id": "CVE-2026-46185",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 76894f3e2f71177747b8b4763fb180e800279585\nLinux Linux 76894f3e2f71177747b8b4763fb180e800279585\nLinux Linux 76894f3e2f71177747b8b4763fb180e800279585\nLinux Linux 76894f3e2f71177747b8b4763fb180e800279585\nLinux Linux 76894f3e2f71177747b8b4763fb180e800279585\nLinux Linux 2d046892a493d9760c35fdaefc3017f27f91b621\nLinux Linux 6.0.16\nLinux Linux 6.1",
    "sourceHref": "",
    "cvss": {
        "score": 9.1,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "76894f3e2f71177747b8b4763fb180e800279585",
    "vendor": "Linux",
    "ai_description": "",
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    "ai_score": 0
}