{
  "cveId": "CVE-2021-47500",
  "url": "https://patchblox.com/security/cve/CVE-2021-47500",
  "summary": "CVE-2021-47500 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47500, released May 24, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  iio: mma8452: Fix trigger reference couting  The...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  iio: mma8452: Fix trigger reference couting  The mma8452 driver directly assigns a trigger to the struct iio_dev. The IIO core when done using this trigger will call \u0060iio_trigger_put()\u0060 to drop the reference count by 1.  Without the matching \u0060iio_trigger_get()\u0060 in the driver the reference count can reach 0 too early, the trigger gets freed while still in use and a use-after-free occurs.  Fix this by getting a reference to the trigger before assigning it to the IIO device.",
  "published": "2024-05-24T15:15:09Z",
  "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": 0.00242,
  "epssPercentile": 0.15497,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47500",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47500",
      "released": "2024-05-24T15:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47500",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47500",
      "released": "2024-05-24T15:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47500",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47500",
      "released": "2024-05-24T15:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}