{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-31143",
        "ASSIGNER": "security@xen.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An optional feature of PCI MSI called \"Multiple Message\" allows a\ndevice to use multiple consecutive interrupt vectors.  Unlike for MSI-X,\nthe setting up of these consecutive vectors needs to happen all in one\ngo.  In this handling an error path could be taken in different\nsituations, with or without a particular lock held.  This error path\nwrongly releases the lock even when it is not currently held.\n"
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Xen",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Xen",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "status": "unknown",
                                                        "version": "consult Xen advisory XSA-458"
                                                    }
                                                ],
                                                "defaultStatus": "unknown"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://xenbits.xenproject.org/xsa/advisory-458.html",
                "refsource": "MISC",
                "name": "https://xenbits.xenproject.org/xsa/advisory-458.html"
            }
        ]
    },
    "configuration": [
        {
            "lang": "en",
            "value": "Xen versions 4.4 and newer are vulnerable.  Xen versions 4.3 and older\nare not vulnerable.\n\nOnly x86 guest which have a multi-vector MSI capable device passed\nthrough to them can leverage the vulnerability.\n"
        }
    ],
    "work_around": [
        {
            "lang": "en",
            "value": "Not passing through multi-vector MSI capable devices to x86 guests will\navoid the vulnerability.\n"
        }
    ],
    "credits": [
        {
            "lang": "en",
            "value": "This issue was discovered by Jan Beulich of SUSE.\n"
        }
    ]
}