{
  "cveId": "CVE-2026-90323",
  "url": "https://patchblox.com/security/cve/CVE-2026-90323",
  "summary": "CVE-2026-90323 is fixed in linux on 1 platform by DEBIAN-CVE-2026-90323 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ublk: validate auto buf reg before taking uring_cmd",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ublk: validate auto buf reg before taking uring_cmd  With UBLK_F_AUTO_BUF_REG, invalid sqe-\u003Eaddr can fail after ublk_fill_io_cmd() has set UBLK_IO_FLAG_ACTIVE. The uring_cmd is completed while the tag stays active, which can hang teardown.  Split validation from buffer apply so the check has no side effects, then take the uring_cmd and store the already-validated buffer. Apply the same order in FETCH so io-\u003Ebuf is not written before __ublk_fetch() state checks.",
  "published": "2026-09-17T17:17:30Z",
  "severity": "",
  "epss": 0.00206,
  "epssPercentile": 0.10775,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90323",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-90323",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90323",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}