{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "aaf2e048af2704da5869f27b508b288f36d5c7b7"
            },
            {
              "fixed": "1ce8faf90eb0bf5599b90db38500aefea9426485"
            },
            {
              "fixed": "b873099944dae5702b4b6db6814d1f1e8d4cfb00"
            },
            {
              "fixed": "ff28a93a895912010a7827a0e1445ebe8be53b4d"
            },
            {
              "fixed": "cc29f7082b7ab5e0337f27d1fef16359f05fcffa"
            },
            {
              "fixed": "1fb1236312ee1a600de6b3ca560f0b3fd5a50471"
            },
            {
              "fixed": "0b4cf43f9ca7118590a338de900edbd6047cd89f"
            },
            {
              "fixed": "f594863967d87b7fcbff6e724d51135fd701a13d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.14.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90228.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()\n\nWhen a host issues an Identify command with CNS 05h (I/O Command Set\nspecific Identify Namespace) and CSI 02h (ZNS) targeting a file-backed\nnamespace, nvmet_execute_identify_ns_zns() calls bdev_is_zoned() on\nreq-\u003ens-\u003ebdev. A file-backed namespace has no block device, so\nreq-\u003ens-\u003ebdev is NULL and bdev_is_zoned() dereferences it, oopsing.\n\nThe I/O command set is selected by the host-supplied CSI field and the\ncommand is routed here whenever CONFIG_BLK_DEV_ZONED is enabled,\nindependent of the namespace backing type, so any file-backed namespace\nis exposed.\n\nReject the command with Invalid Field when the namespace is not backed\nby a block device.",
  "id": "CVE-2026-90228",
  "modified": "2026-09-19T03:30:17.889185662Z",
  "published": "2026-09-17T16:07:36.625Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b4cf43f9ca7118590a338de900edbd6047cd89f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ce8faf90eb0bf5599b90db38500aefea9426485"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fb1236312ee1a600de6b3ca560f0b3fd5a50471"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b873099944dae5702b4b6db6814d1f1e8d4cfb00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc29f7082b7ab5e0337f27d1fef16359f05fcffa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f594863967d87b7fcbff6e724d51135fd701a13d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff28a93a895912010a7827a0e1445ebe8be53b4d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90228.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90228"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "nvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()"
}