{
  "cveId": "CVE-2026-23223",
  "url": "https://patchblox.com/security/cve/CVE-2026-23223",
  "summary": "CVE-2026-23223 is fixed in 71 products on 1 platform, first by DEBIAN-CVE-2026-23223, released February 18, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "xfs: fix UAF in xchk_btree_check_block_owner",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  xfs: fix UAF in xchk_btree_check_block_owner  We cannot dereference bs-\u003Ecur when trying to determine if bs-\u003Ecur aliases bs-\u003Esc-\u003Esa.{bno,rmap}_cur after the latter has been freed. Fix this by sampling before type before any freeing could happen. The correct temporal ordering was broken when we removed xfs_btnum_t.",
  "published": "2026-02-18T16:22:32Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0014,
  "epssPercentile": 0.0335,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23223",
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      "fix": "ALAS2023-2026-1487",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1487",
      "released": "2026-03-16T09:00:00Z"
    },
    {
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      "released": "2026-03-16T09:00:00Z"
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      "released": "2026-03-16T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}