{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2202844e4468c7539dba0c0b06577c93735af952"
            },
            {
              "fixed": "6cc60b41d61657dc469893d14e8e55d160056ff1"
            },
            {
              "fixed": "a53109ffb6b5148e11a27fb7670355b92db12dd3"
            },
            {
              "fixed": "a5df401dc84f091e20b045560569f0736758fea7"
            },
            {
              "fixed": "dc7fe87de492ea7f33a72b78d26650b75bf37f4f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64473.json"
  },
  "details": "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.",
  "id": "CVE-2026-64473",
  "modified": "2026-07-27T03:56:24.247750373Z",
  "published": "2026-07-25T08:51:36.702Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6cc60b41d61657dc469893d14e8e55d160056ff1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a53109ffb6b5148e11a27fb7670355b92db12dd3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5df401dc84f091e20b045560569f0736758fea7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dc7fe87de492ea7f33a72b78d26650b75bf37f4f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64473.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64473"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "vfio: Remove device debugfs before releasing devres"
}