Revert "f2fs: block cache/dio write during f2fs_enable_checkpoint()"

{
  "id": "a2dd321f03debc5ded9d4bc88e67919cc8f9aa1f30d5fcec60805e36ab126c97",
  "url": "https://osv.dev/vulnerability/CVE-2026-23232",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Revert \"f2fs: block cache/dio write during f2fs_enable_checkpoint()\"",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: Revert \"f2fs: block cache/dio write during f2fs_enable_checkpoint()\" This reverts commit 196c81fdd438f7ac429d5639090a9816abb9760a. Original patch may cause below deadlock, revert it. write remount - write_begin - lock_page --- lock A - prepare_write_begin - f2fs_map_lock - f2fs_enable_checkpoint - down_write(cp_enable_rwsem) --- lock B - sync_inode_sb - writepages - lock_page --- lock A - down_read(cp_enable_rwsem) --- lock A",
    "evidence": "osv:CVE-2026-23232",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.19.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-23232",
      "aliases": [
        "CVE-2026-23232"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "196c81fdd438f7ac429d5639090a9816abb9760a"
                },
                {
                  "fixed": "b6382273801bc7c778545dd8004c9a9d750b4f62"
                },
                {
                  "fixed": "3996b70209f145bfcf2afc7d05dd92c27b233b48"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23232.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23232.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.063505485Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3996b70209f145bfcf2afc7d05dd92c27b233b48",
        "https://git.kernel.org/stable/c/b6382273801bc7c778545dd8004c9a9d750b4f62",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23232.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23232",
        "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/2026/23xxx/CVE-2026-23232.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23232",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 517277,
  "published_at": "2026-03-04T14:36:37.323+00:00"
}