{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-47727",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/tdx: Fix \"in-kernel MMIO\" check\n\nTDX only supports kernel-initiated MMIO operations. The handle_mmio()\nfunction checks if the #VE exception occurred in the kernel and rejects\nthe operation if it did not.\n\nHowever, userspace can deceive the kernel into performing MMIO on its\nbehalf. For example, if userspace can point a syscall to an MMIO address,\nsyscall does get_user() or put_user() on it, triggering MMIO #VE. The\nkernel will treat the #VE as in-kernel MMIO.\n\nEnsure that the target MMIO address is within the kernel before decoding\ninstruction."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "31d58c4e557d",
                                            "version_value": "25703a3c980e"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.19",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.19",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.1.113",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.54",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.10.13",
                                                        "lessThanOrEqual": "6.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.11.2",
                                                        "lessThanOrEqual": "6.11.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.12",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/25703a3c980e21548774eea8c8a87a75c5c8f58c",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/25703a3c980e21548774eea8c8a87a75c5c8f58c"
            },
            {
                "url": "https://git.kernel.org/stable/c/4c0c5dcb5471de5fc8f0a1c4980e5815339e1cee",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/4c0c5dcb5471de5fc8f0a1c4980e5815339e1cee"
            },
            {
                "url": "https://git.kernel.org/stable/c/18ecd5b74682839e7cdafb7cd1ec106df7baa18c",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/18ecd5b74682839e7cdafb7cd1ec106df7baa18c"
            },
            {
                "url": "https://git.kernel.org/stable/c/bca2e29f7e26ce7c3522f8b324c0bd85612f68e3",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/bca2e29f7e26ce7c3522f8b324c0bd85612f68e3"
            },
            {
                "url": "https://git.kernel.org/stable/c/d4fc4d01471528da8a9797a065982e05090e1d81",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/d4fc4d01471528da8a9797a065982e05090e1d81"
            }
        ]
    },
    "generator": {
        "engine": "bippy-8e903de6a542"
    }
}