{
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    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-52864",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: wmi: Fix opening of char device\n\nSince commit fa1f68db6ca7 (\"drivers: misc: pass miscdevice pointer via\nfile private data\"), the miscdevice stores a pointer to itself inside\nfilp->private_data, which means that private_data will not be NULL when\nwmi_char_open() is called. This might cause memory corruption should\nwmi_char_open() be unable to find its driver, something which can\nhappen when the associated WMI device is deleted in wmi_free_devices().\n\nFix the problem by using the miscdevice pointer to retrieve the WMI\ndevice data associated with a char device using container_of(). This\nalso avoids wmi_char_open() picking a wrong WMI device bound to a\ndriver with the same name as the original driver."
            }
        ]
    },
    "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": "44b6b7661132",
                                            "version_value": "cf098e937dd1"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "4.15",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "4.15",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.19.299",
                                                        "lessThanOrEqual": "4.19.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.4.261",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.201",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.15.139",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.1.63",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.5.12",
                                                        "lessThanOrEqual": "6.5.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.6.2",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.7",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
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        }
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    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/cf098e937dd125c0317a0d6f261ac2a950a233d6",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/cf098e937dd125c0317a0d6f261ac2a950a233d6"
            },
            {
                "url": "https://git.kernel.org/stable/c/9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203"
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            {
                "url": "https://git.kernel.org/stable/c/d426a2955e45a95b2282764105fcfb110a540453",
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                "name": "https://git.kernel.org/stable/c/d426a2955e45a95b2282764105fcfb110a540453"
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                "name": "https://git.kernel.org/stable/c/e0bf076b734a2fab92d8fddc2b8b03462eee7097"
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                "name": "https://git.kernel.org/stable/c/36d85fa7ae0d6be651c1a745191fa7ef055db43e"
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                "url": "https://git.kernel.org/stable/c/fb7b06b59c6887659c6ed0ecd3110835eecbb6a3",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/fb7b06b59c6887659c6ed0ecd3110835eecbb6a3"
            },
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                "url": "https://git.kernel.org/stable/c/eba9ac7abab91c8f6d351460239108bef5e7a0b6",
                "refsource": "MISC",
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