accel/amdxdna: Hold mm structure across iommu_sva_unbind_device()_CVE-2026-45931

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Hold mm structure across iommu_sva_unbind_device()\n\nSome tests trigger a crash in iommu_sva_unbind_device() due to\naccessing iommu_mm after the associated mm structure has been\nfreed.\n\nFix this by taking an explicit reference to the mm structure\nafter successfully binding the device, and releasing it only\nafter the device is unbound. This ensures the mm remains valid\nfor the entire SVA bind/unbind lifetime.",
    "published": "2026-05-27T12:17:49.527Z",
    "modified": "2026-05-30T10:45:57.696Z",
    "type": "cve",
    "title": "accel/amdxdna: Hold mm structure across iommu_sva_unbind_device()",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/f6b4c1d98a7b8040d4d02e89425b3942016a2c2c\nhttps://git.kernel.org/stable/c/f31ccf6278132a35a652fe5eeac3941e1e912398\nhttps://git.kernel.org/stable/c/a9162439ad792afcddc04718408ec1380b7a5f63",
    "id": "CVE-2026-45931",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux be462c97b7dfd24999babe39cce3de224ebe1f80\nLinux Linux be462c97b7dfd24999babe39cce3de224ebe1f80\nLinux Linux be462c97b7dfd24999babe39cce3de224ebe1f80\nLinux Linux 6.14",
    "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": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "be462c97b7dfd24999babe39cce3de224ebe1f80",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}