{
  "cveId": "CVE-2022-4696",
  "url": "https://patchblox.com/security/cve/CVE-2022-4696",
  "summary": "CVE-2022-4696 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-4696, released January 11, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: There exists a use-after-free vulnerability in the Linux kernel through io_uring and the\u00A0IORING_OP_SPLICE operation",
  "description": "There exists a use-after-free vulnerability in the Linux kernel through io_uring and the\u00A0IORING_OP_SPLICE operation. If\u00A0IORING_OP_SPLICE is\u00A0missing the IO_WQ_WORK_FILES flag, which signals that the operation won\u0027t use current-\u003Ensproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current-\u003Ensproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above",
  "published": "2023-01-11T13:15:09Z",
  "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": 0.0044,
  "epssPercentile": 0.38512,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2022-4696",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-4696",
      "released": "2023-01-11T13:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2022-4696",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-4696",
      "released": "2023-01-11T13:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2022-4696",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-4696",
      "released": "2023-01-11T13:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}