{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "DEBIAN-CVE-2026-90323",
  "modified": "2026-09-18T04:47:34.597047134Z",
  "published": "2026-09-17T17:17:30.307Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-90323"
    }
  ],
  "upstream": [
    "CVE-2026-90323"
  ]
}