{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-50059",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition\n\nIn the switchtec_ntb_add function, it can call switchtec_ntb_init_sndev\nfunction, then &sndev->check_link_status_work is bound with\ncheck_link_status_work. switchtec_ntb_link_notification may be called\nto start the work.\n\nIf we remove the module which will call switchtec_ntb_remove to make\ncleanup, it will free sndev through kfree(sndev), while the work\nmentioned above will be used. The sequence of operations that may lead\nto a UAF bug is as follows:\n\nCPU0                                 CPU1\n\n                        | check_link_status_work\nswitchtec_ntb_remove    |\nkfree(sndev);           |\n                        | if (sndev->link_force_down)\n                        | // use sndev\n\nFix it by ensuring that the work is canceled before proceeding with\nthe cleanup in switchtec_ntb_remove."
            }
        ]
    },
    "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": "1da177e4c3f4",
                                            "version_value": "b65018968782"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.10.227",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.15.168",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.1.113",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.6.57",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.11.4",
                                                        "lessThanOrEqual": "6.11.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.12-rc1",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
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            ]
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    "references": {
        "reference_data": [
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                "url": "https://git.kernel.org/stable/c/b650189687822b705711f0567a65a164a314d8df",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/b650189687822b705711f0567a65a164a314d8df"
            },
            {
                "url": "https://git.kernel.org/stable/c/92728fceefdaa2a0a3aae675f86193b006eeaa43",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/92728fceefdaa2a0a3aae675f86193b006eeaa43"
            },
            {
                "url": "https://git.kernel.org/stable/c/3ae45be8492460a35b5aebf6acac1f1d32708946",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/3ae45be8492460a35b5aebf6acac1f1d32708946"
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            {
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                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/177925d9c8715a897bb79eca62628862213ba956"
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                "url": "https://git.kernel.org/stable/c/e51aded92d42784313ba16c12f4f88cc4f973bbb",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/e51aded92d42784313ba16c12f4f88cc4f973bbb"
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