{
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    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-27079",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix NULL domain on device release\n\nIn the kdump kernel, the IOMMU operates in deferred_attach mode. In this\nmode, info->domain may not yet be assigned by the time the release_device\nfunction is called. It leads to the following crash in the crash kernel:\n\n    BUG: kernel NULL pointer dereference, address: 000000000000003c\n    ...\n    RIP: 0010:do_raw_spin_lock+0xa/0xa0\n    ...\n    _raw_spin_lock_irqsave+0x1b/0x30\n    intel_iommu_release_device+0x96/0x170\n    iommu_deinit_device+0x39/0xf0\n    __iommu_group_remove_device+0xa0/0xd0\n    iommu_bus_notifier+0x55/0xb0\n    notifier_call_chain+0x5a/0xd0\n    blocking_notifier_call_chain+0x41/0x60\n    bus_notify+0x34/0x50\n    device_del+0x269/0x3d0\n    pci_remove_bus_device+0x77/0x100\n    p2sb_bar+0xae/0x1d0\n    ...\n    i801_probe+0x423/0x740\n\nUse the release_domain mechanism to fix it. The scalable mode context\nentry which is not part of release domain should be cleared in\nrelease_device()."
            }
        ]
    },
    "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": "586081d3f6b1",
                                            "version_value": "333fe8696848"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.18",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.18",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.8.2",
                                                        "lessThanOrEqual": "6.8.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.9",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/333fe86968482ca701c609af590003bcea450e8f",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/333fe86968482ca701c609af590003bcea450e8f"
            },
            {
                "url": "https://git.kernel.org/stable/c/81e921fd321614c2ad8ac333b041aae1da7a1c6d",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/81e921fd321614c2ad8ac333b041aae1da7a1c6d"
            }
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