{
  "cveId": "CVE-2021-46966",
  "url": "https://patchblox.com/security/cve/CVE-2021-46966",
  "summary": "CVE-2021-46966 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-46966, released February 27, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ACPI: custom_method: fix potential use-after-fre...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ACPI: custom_method: fix potential use-after-free issue  In cm_write(), buf is always freed when reaching the end of the function.  If the requested count is less than table.length, the allocated buffer will be freed but subsequent calls to cm_write() will still try to access it.  Remove the unconditional kfree(buf) at the end of the function and set the buf to NULL in the -EINVAL error path to match the rest of function.",
  "published": "2024-02-27T19:04:07Z",
  "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": 0.0023,
  "epssPercentile": 0.13834,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46966",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46966",
      "released": "2024-02-27T19:04:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46966",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46966",
      "released": "2024-02-27T19:04:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46966",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46966",
      "released": "2024-02-27T19:04:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}