{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8012b866085523758780850087102421dbcce522"
            },
            {
              "fixed": "1661b9bf78def01a8c96409569772d9b2592f4ba"
            },
            {
              "fixed": "0a42180d5410c98829ee72d1d426fb7faf9e6873"
            },
            {
              "fixed": "ee1251621d1c7cf3155c6704542cbb358d799968"
            },
            {
              "fixed": "6a37acecc7c29136235cbc446a1b89e81414344b"
            },
            {
              "fixed": "eb412f80311fc7ab6eb3203091a3fe59a5e9fd30"
            },
            {
              "fixed": "7ae9d15bdcde0f2955ae13b6a95587f9e23b2359"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "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/2026/93xxx/CVE-2026-93073.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndax: read holder_ops once in dax_holder_notify_failure()\n\ndax_holder_notify_failure() reads dax_dev-\u003eholder_ops twice without\nREAD_ONCE() -- once for the NULL check and once for the indirect\nnotify_failure() call. A concurrent fs_put_dax() can clear holder_ops\nbetween the two reads, so the check can observe a non-NULL pointer while\nthe call dereferences NULL. (kill_dax() also clears holder_ops, but only\nafter synchronize_srcu(), so it cannot race a reader that is inside\ndax_read_lock(); fs_put_dax() does no such synchronization.)\n\nFetch holder_ops once into a local with READ_ONCE() so the NULL check and\nthe indirect call observe the same value.",
  "id": "CVE-2026-93073",
  "modified": "2026-09-19T03:30:52.751797060Z",
  "published": "2026-09-17T16:10:56.405Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a42180d5410c98829ee72d1d426fb7faf9e6873"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1661b9bf78def01a8c96409569772d9b2592f4ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a37acecc7c29136235cbc446a1b89e81414344b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ae9d15bdcde0f2955ae13b6a95587f9e23b2359"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb412f80311fc7ab6eb3203091a3fe59a5e9fd30"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee1251621d1c7cf3155c6704542cbb358d799968"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93073.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93073"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "dax: read holder_ops once in dax_holder_notify_failure()"
}