{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1e9ea7e04472d4e5e12e58c881eaacfb3e49b669"
            },
            {
              "fixed": "83f396d881c4fd312c7fd5fff2c157fc21104464"
            },
            {
              "fixed": "d97a36bae86a9a4021562ded2987f904e6bcb1d7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72188.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: sanitize MFT references returned from ntfs_lookup_inode_by_name()\n\nntfs_lookup_inode_by_name() returns MFT references read from directory\nindex entries on disk. These values are untrusted, but the function can\ncurrently return an error-marked MFT reference to its callers without\nvalidating it.\n\nCallers later decode lookup failures with MREF_ERR(). A crafted NTFS image\ncan set the MREF error bit while leaving the low bits as an arbitrary\nvalue, causing callers to consume a bogus pseudo-errno instead of treating\nthe lookup result as corrupted on-disk metadata.\n\nFix this at the source by normalizing every error-marked MFT reference\nreturned from ntfs_lookup_inode_by_name() to ERR_MREF(-EIO). Apply this to\nall four directory lookup return paths so every caller gets a validated\nresult without needing additional checks or an API change.\n\nThis keeps the sanitization in the common lookup helper, which is cleaner\nthan duplicating validation in each caller.",
  "id": "CVE-2026-72188",
  "modified": "2026-08-16T03:31:09.331328290Z",
  "published": "2026-08-15T05:53:49.593Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83f396d881c4fd312c7fd5fff2c157fc21104464"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d97a36bae86a9a4021562ded2987f904e6bcb1d7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72188.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72188"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ntfs: sanitize MFT references returned from ntfs_lookup_inode_by_name()"
}