{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64473",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.790Z",
        "datePublished": "2026-07-25T08:51:36.702Z",
        "dateUpdated": "2026-08-17T04:56:19.303Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:56:19.303Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio: Remove device debugfs before releasing devres\n\nVFIO device debugfs files created with debugfs_create_devm_seqfile()\nstore a devres allocated debugfs_devm_entry as inode private data.\nvfio_unregister_group_dev() currently calls vfio_device_del() before\nvfio_device_debugfs_exit(), but device_del() releases devres.  This can\nleave debugfs entries visible with stale inode private data while\nunregister waits for userspace references to drain.\n\nRemove the per-device debugfs tree before vfio_device_del().  The debugfs\nview is diagnostic only, so losing it at the start of unregister is\npreferable to preserving entries whose backing storage may already have\nbeen released.\n\nComplete the teardown by clearing the per-device debugfs root after\nremoval.  This matches the global debugfs root cleanup and prevents\nfuture users from mistaking a removed dentry for a live debugfs tree\nduring the remainder of unregister."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/vfio/debugfs.c",
                        "drivers/vfio/vfio_main.c"
                    ],
                    "versions": [
                        {
                            "version": "2202844e4468c7539dba0c0b06577c93735af952",
                            "lessThan": "6cc60b41d61657dc469893d14e8e55d160056ff1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2202844e4468c7539dba0c0b06577c93735af952",
                            "lessThan": "a53109ffb6b5148e11a27fb7670355b92db12dd3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2202844e4468c7539dba0c0b06577c93735af952",
                            "lessThan": "a5df401dc84f091e20b045560569f0736758fea7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2202844e4468c7539dba0c0b06577c93735af952",
                            "lessThan": "dc7fe87de492ea7f33a72b78d26650b75bf37f4f",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/vfio/debugfs.c",
                        "drivers/vfio/vfio_main.c"
                    ],
                    "versions": [
                        {
                            "version": "6.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.96",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.39",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.4",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.12.96"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.18.39"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.1.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/6cc60b41d61657dc469893d14e8e55d160056ff1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a53109ffb6b5148e11a27fb7670355b92db12dd3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a5df401dc84f091e20b045560569f0736758fea7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dc7fe87de492ea7f33a72b78d26650b75bf37f4f"
                }
            ],
            "title": "vfio: Remove device debugfs before releasing devres",
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                "engine": "bippy-1.2.0"
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    }
}