{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.19.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  mm: call -\u003efree_folio() directly in folio_unmap_invalidate()  We can only call filemap_free_folio() if we have a reference to (or hold a lock on) the mapping.  Otherwise, we've already removed the folio from the mapping so it no longer pins the mapping and the mapping can be removed, causing a use-after-free when accessing mapping-\u003ea_ops.  Follow the same pattern as __remove_mapping() and load the free_folio function pointer before dropping the lock on the mapping.  That lets us make filemap_free_folio() static as this was the only caller outside filemap.c.",
  "id": "DEBIAN-CVE-2026-31589",
  "modified": "2026-09-14T16:47:32.698952898Z",
  "published": "2026-04-24T15:16:34.700Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-31589"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-31589"
  ]
}