{
  "cveId": "CVE-2026-64509",
  "url": "https://patchblox.com/security/cve/CVE-2026-64509",
  "summary": "CVE-2026-64509 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-64509, released August 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  rust: block: fix GenDisk cleanup paths  GenDiskB...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  rust: block: fix GenDisk cleanup paths  GenDiskBuilder::build() still has fallible work after __blk_mq_alloc_disk(), but its error path only recovers the foreign queue data. That leaks the temporary gendisk and request_queue until later teardown. If the caller moved the last Arc\u003CTagSet\u003CT\u003E\u003E into build(), the leaked queue can retain blk-mq state after the tag set is dropped.  Fix the pre-registration failure path by dropping the temporary gendisk reference with put_disk() before recovering queue_data, so disk_release() can tear down the owned queue.  Also pair GenDisk::drop() with put_disk() after del_gendisk(). Once a Rust GenDisk has been added with device_add_disk(), del_gendisk() only unregisters it; the final gendisk reference still has to be dropped to complete the release path.",
  "published": "2026-07-25T10:17:37Z",
  "severity": "",
  "epss": 0.00209,
  "epssPercentile": 0.11079,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.100-1",
      "fix": "DEBIAN-CVE-2026-64509",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64509",
      "released": "2026-08-01T14:28:19Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.4-1",
      "fix": "DEBIAN-CVE-2026-64509",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64509",
      "released": "2026-08-01T14:28:19Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.100-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-64509",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-64509",
      "released": "2026-08-01T14:28:19Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}