ntfs: reject unprivileged writes to reserved $LX* xattrs

{
  "id": "7cb9f938b37f032002e011811b7be92f0e250123282654b29da771643e33d71c",
  "url": "https://osv.dev/vulnerability/CVE-2026-90132",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ntfs: reject unprivileged writes to reserved $LX* xattrs",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ntfs: reject unprivileged writes to reserved $LX* xattrs Reject setxattr of the reserved $LXUID, $LXGID, $LXMOD and $LXDEV names from userspace unless the caller has CAP_SYS_ADMIN.",
    "evidence": "osv:CVE-2026-90132",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-90132",
      "aliases": [
        "CVE-2026-90132"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fc053f05ca282a5e760b41f6560ac835c4e28037"
                },
                {
                  "fixed": "86f46508016bc1f2bffb3a52dc2664f942fb9802"
                },
                {
                  "fixed": "ea6a67ef64451d2da298f15baa35865b4bb6372a"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90132.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "7.1.0"
                },
                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90132.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.939937058Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/86f46508016bc1f2bffb3a52dc2664f942fb9802",
        "https://git.kernel.org/stable/c/ea6a67ef64451d2da298f15baa35865b4bb6372a",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90132.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90132",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90132.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90132",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 508728,
  "published_at": "2026-09-17T16:06:32.576+00:00"
}