scsi: mpt3sas: Limit NVMe request size to 2 MiB_CVE-2026-46105

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Limit NVMe request size to 2 MiB\n\nThe HBA firmware reports NVMe MDTS values based on the underlying drive\ncapability. However, because the driver allocates a fixed 4K buffer for\nthe PRP list, accommodating at most 512 entries, the driver supports a\nmaximum I/O transfer size of 2 MiB.\n\nLimit max_hw_sectors to the smaller of the reported MDTS and the 2 MiB\ndriver limit to prevent issuing oversized I/O that may lead to a kernel\noops.",
    "published": "2026-05-28T09:35:09.126Z",
    "modified": "2026-05-30T10:47:35.387Z",
    "type": "cve",
    "title": "scsi: mpt3sas: Limit NVMe request size to 2 MiB",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/45dcc815fc5539e88154315f36cbcb11d3a52fc2\nhttps://git.kernel.org/stable/c/e5f9824817c6358b9f9738bdb92dec9e4e794d3c\nhttps://git.kernel.org/stable/c/04631f55afc543d5431a2bdee7f6cc0f2c0debe7",
    "id": "CVE-2026-46105",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 9b8b84879d4adc506b0d3944e20b28d9f3f6994b\nLinux Linux 9b8b84879d4adc506b0d3944e20b28d9f3f6994b\nLinux Linux 9b8b84879d4adc506b0d3944e20b28d9f3f6994b\nLinux Linux 6.17",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/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": "",
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            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "9b8b84879d4adc506b0d3944e20b28d9f3f6994b",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_score": 0
}