{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b"
            },
            {
              "fixed": "161513f53e4ac90fd356433bdf8e31e6adeb92af"
            },
            {
              "fixed": "905411f6504876d268ba8dafc8e75367782da4b7"
            },
            {
              "fixed": "ce366bfa821ec81dd45bde547ee31e659306cc61"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.7.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89833.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()\n\nThere is potential deadloop in race condition:\n\nThread A\t\t\t\tThread B\n- fsync\n - f2fs_do_sync_file\n  - f2fs_fsync_node_pages\n   - last_fsync_dnode\n    - folio_get(last_folio)\n\t\t\t\t\t- f2fs_setattr\n\t\t\t\t\t - f2fs_truncate\n\t\t\t\t\t  - f2fs_truncate_blocks\n\t\t\t\t\t   - f2fs_do_truncate_blocks\n\t\t\t\t\t    - f2fs_truncate_inode_blocks\n\t\t\t\t\t     - truncate_dnode\n\t\t\t\t\t      - truncate_node\n\t\t\t\t\t       - invalidate_mapping_pages\n\t\t\t\t\t        - folio-\u003emapping = NULL\n   - is_node_folio alwasy return false\n   - atomic \u0026\u0026 !marked is always true,\n     then goto retry",
  "id": "CVE-2026-89833",
  "modified": "2026-09-18T03:31:05.670691183Z",
  "published": "2026-09-16T10:31:05.680Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89833.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89833"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()"
}