{
  "cveId": "CVE-2021-47294",
  "url": "https://patchblox.com/security/cve/CVE-2021-47294",
  "summary": "CVE-2021-47294 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47294, released May 21, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  netrom: Decrease sock refcount when sock timers...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  netrom: Decrease sock refcount when sock timers expire  Commit 63346650c1a9 (\u0022netrom: switch to sock timer API\u0022) switched to use sock timer API. It replaces mod_timer() by sk_reset_timer(), and del_timer() by sk_stop_timer().  Function sk_reset_timer() will increase the refcount of sock if it is called on an inactive timer, hence, in case the timer expires, we need to decrease the refcount ourselves in the handler, otherwise, the sock refcount will be unbalanced and the sock will never be freed.",
  "published": "2024-05-21T15:15:17Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00276,
  "epssPercentile": 0.20164,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47294",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47294",
      "released": "2024-05-21T15:15:17Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47294",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47294",
      "released": "2024-05-21T15:15:17Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47294",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47294",
      "released": "2024-05-21T15:15:17Z"
    }
  ],
  "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"
  }
}