f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()

{
  "id": "40f420411446c2293c8ce2998729afd570497e06011a7a07e36cbca7f9bb88af",
  "url": "https://osv.dev/vulnerability/CVE-2026-89833",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages() There is potential deadloop in race condition: Thread A Thread B - fsync - f2fs_do_sync_file - f2fs_fsync_node_pages - last_fsync_dnode - folio_get(last_folio) - f2fs_setattr - f2fs_truncate - f2fs_truncate_blocks - f2fs_do_truncate_blocks - f2fs_truncate_inode_blocks - truncate_dnode - truncate_node - invalidate_mapping_pages - folio->mapping = NULL - is_node_folio alwasy return false - atomic && !marked is always true, then goto retry",
    "evidence": "osv:CVE-2026-89833",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.191",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.114",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.51",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-89833",
      "aliases": [
        "CVE-2026-89833"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b"
                },
                {
                  "fixed": "64a47dc8286ff98d8c231ae035bdfe16be1b93bf"
                },
                {
                  "fixed": "58ca9f06480457eb9c9513e1ae2b75316d4ed1e5"
                },
                {
                  "fixed": "bdc06381d590ad5833ee7a2c56b8b685d80ee9b5"
                },
                {
                  "fixed": "161513f53e4ac90fd356433bdf8e31e6adeb92af"
                },
                {
                  "fixed": "905411f6504876d268ba8dafc8e75367782da4b7"
                },
                {
                  "fixed": "ce366bfa821ec81dd45bde547ee31e659306cc61"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89833.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.7.0"
                },
                {
                  "fixed": "6.1.191"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.160"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.114"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.51"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89833.json"
          }
        }
      ],
      "modified": "2026-11-01T02:30:23.688263136Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af",
        "https://git.kernel.org/stable/c/58ca9f06480457eb9c9513e1ae2b75316d4ed1e5",
        "https://git.kernel.org/stable/c/64a47dc8286ff98d8c231ae035bdfe16be1b93bf",
        "https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7",
        "https://git.kernel.org/stable/c/bdc06381d590ad5833ee7a2c56b8b685d80ee9b5",
        "https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89833.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-89833",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89833.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-89833",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 497798,
  "published_at": "2026-09-16T10:31:05.68+00:00"
}