{
  "cveId": "CVE-2026-89764",
  "url": "https://patchblox.com/security/cve/CVE-2026-89764",
  "summary": "CVE-2026-89764 is fixed in linux on 1 platform by DEBIAN-CVE-2026-89764 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  rust: devres: fix race between concurrent revoke...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  rust: devres: fix race between concurrent revokers  There is a potential race condition when two paths try to revoke a Devres concurrently.  The driver core\u0027s devres_release_all() calls Revocable::revoke() via the release callback, while Devres::drop() calls revoke_nosync() on another CPU.  The revoker that does not claim the is_available swap returns immediately, but the revoker that did may still be executing drop_in_place() on the inner data. This can cause a use-after-free when the other revoker\u0027s caller proceeds to drop adjacent resources that drop_in_place() still references (e.g., Devres\u003CDmaMappedSgt\u003E racing with SGTable freeing the backing sg_table and pages).  Fix this by adding a Completion. The release callback signals the Completion after revoke() finishes, and Devres::drop() waits for it when it loses the is_available swap. This ensures the wrapped object is fully torn down before Devres::drop() returns.",
  "published": "2026-09-11T20:20:07Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00168,
  "epssPercentile": 0.0621,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-89764",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89764",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}