f2fs: ensure node page reads complete before f2fs_put_super() finishes

{
  "id": "9f8858af3d26c09c558ba568af17389764b053c22df54f7a49351831a178ee5c",
  "url": "https://osv.dev/vulnerability/CVE-2025-71107",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "f2fs: ensure node page reads complete before f2fs_put_super() finishes",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: f2fs: ensure node page reads complete before f2fs_put_super() finishes Xfstests generic/335, generic/336 sometimes crash with the following message: F2FS-fs (dm-0): detect filesystem reference count leak during umount, type: 9, count: 1 ------------[ cut here ]------------ kernel BUG at fs/f2fs/super.c:1939! Oops: invalid opcode: 0000 [#1] SMP NOPTI CPU: 1 UID: 0 PID: 609351 Comm: umount Tainted: G W 6.17.0-rc5-xfstests-g9dd1835ecda5 #1 PREEMPT(none) Tainted: [W]=WARN Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:f2fs_put_super+0x3b3/0x3c0 Call Trace: generic_shutdown_super+0x7e/0x190 kill_block_super+0x1a/0x40 kill_f2fs_super+0x9d/0x190 deactivate_locked_super+0x30/0xb0 cleanup_mnt+0xba/0x150 task_work_run+0x5c/0xa0 exit_to_user_mode_loop+0xb7/0xc0 do_syscall_64+0x1ae/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e ---[ end trace 0000000000000000 ]--- It appears that sometimes it is possible that f2fs_put_super() is called before all node page reads are completed. Adding a call to f2fs_wait_on_all_pages() for F2FS_RD_NODE fixes the problem.",
    "evidence": "osv:CVE-2025-71107",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.120",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.64",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-71107",
      "aliases": [
        "CVE-2025-71107"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "20872584b8c0b006c007da9588a272c9e28d2e18"
                },
                {
                  "fixed": "c3031cf2b61f1508662fc95ef9ad505cb0882a5f"
                },
                {
                  "fixed": "3b15d5f12935e9e25f9a571e680716bc9ee61025"
                },
                {
                  "fixed": "0b36fae23621a09e772c8adf918b9011158f8511"
                },
                {
                  "fixed": "297baa4aa263ff8f5b3d246ee16a660d76aa82c4"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6.4.16"
                },
                {
                  "fixed": "6.5"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0e2577074b459bba7f4016f4d725ede37d48bb22"
                }
              ]
            }
          ],
          "versions": [
            "v6.4.16"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71107.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.5.0"
                },
                {
                  "fixed": "6.6.120"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.64"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71107.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.013188334Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0b36fae23621a09e772c8adf918b9011158f8511",
        "https://git.kernel.org/stable/c/297baa4aa263ff8f5b3d246ee16a660d76aa82c4",
        "https://git.kernel.org/stable/c/3b15d5f12935e9e25f9a571e680716bc9ee61025",
        "https://git.kernel.org/stable/c/c3031cf2b61f1508662fc95ef9ad505cb0882a5f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71107.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-71107",
        "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/2025/71xxx/CVE-2025-71107.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-71107",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 519659,
  "published_at": "2026-01-14T15:05:55.878+00:00"
}