{
  "cveId": "CVE-2026-90422",
  "url": "https://patchblox.com/security/cve/CVE-2026-90422",
  "summary": "CVE-2026-90422 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-90422, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "clk: mediatek: pllfh: Fix IO remapping leak in register_pllfhs error path",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  clk: mediatek: pllfh: Fix IO remapping leak in register_pllfhs error path  When mtk_clk_register_pllfhs function fails to register a PLL, it unregisters all PLLs and cleans up itself in its error path before returning, so the function callers don\u0027t need to do it.  But contrary to mtk_clk_unregister_pllfhs function, that does almost the same sequence, it does not free the IO memory mapped on fhctl node, leading to a leak.  Fix this leak by factorizing the cleanup sequence in a new private function and use it both mtk_clk_register_pllfhs and mtk_clk_unregister_pllfhs functions.  Also, change the loop index start value to avoid the -1 operation on index at each loop.",
  "published": "2026-09-17T17:17:46Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "epss": 0.00208,
  "epssPercentile": 0.10936,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90422",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-90422",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90422",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-90422",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90422",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}