{
  "cveId": "CVE-2026-74522",
  "url": "https://patchblox.com/security/cve/CVE-2026-74522",
  "summary": "CVE-2026-74522 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-74522, released August 16, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ksmbd: fix use-after-free in __close_file_table_...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ksmbd: fix use-after-free in __close_file_table_ids()  A ksmbd_file can remain alive after logical close while another session holds a temporary reference obtained through ksmbd_lookup_fd_inode(). ksmbd_close_fd() currently marks the file closed and drops the idr-owned reference, but leaves the pointer published in the closing session\u0027s idr until the final reference is dropped.  If the foreign holder performs the final ksmbd_fd_put(), __put_fd_final() supplies the foreign session\u0027s file table to __ksmbd_close_fd(). The object is then freed without being removed from its owner\u0027s idr, and the owner session later dereferences the stale pointer during file-table teardown.  Remove the volatile id from the owner\u0027s idr while ksmbd_close_fd() still holds that table\u0027s lock, and clear volatile_id before dropping the idr-owned reference. A later foreign final put then only performs physical destruction and cannot remove the object from the wrong table.",
  "published": "2026-08-15T13:17:57Z",
  "severity": "high",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00435,
  "epssPercentile": 0.3803,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.187-1",
      "fix": "DEBIAN-CVE-2026-74522",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-74522",
      "released": "2026-08-16T22:48:20Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.105-1",
      "fix": "DEBIAN-CVE-2026-74522",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-74522",
      "released": "2026-08-16T22:48:20Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.8-1",
      "fix": "DEBIAN-CVE-2026-74522",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-74522",
      "released": "2026-08-16T22:48:20Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.107-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-74522",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-74522",
      "released": "2026-08-16T22:48:20Z"
    }
  ],
  "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"
  }
}