{
  "cveId": "CVE-2025-71107",
  "url": "https://patchblox.com/security/cve/CVE-2025-71107",
  "summary": "CVE-2025-71107 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-71107, released January 14, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "f2fs: ensure node page reads complete before f2fs_put_super() finishes",
  "description": "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 \u002B ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:f2fs_put_super\u002B0x3b3/0x3c0 Call Trace:  \u003CTASK\u003E  generic_shutdown_super\u002B0x7e/0x190  kill_block_super\u002B0x1a/0x40  kill_f2fs_super\u002B0x9d/0x190  deactivate_locked_super\u002B0x30/0xb0  cleanup_mnt\u002B0xba/0x150  task_work_run\u002B0x5c/0xa0  exit_to_user_mode_loop\u002B0xb7/0xc0  do_syscall_64\u002B0x1ae/0x1c0  entry_SYSCALL_64_after_hwframe\u002B0x76/0x7e  \u003C/TASK\u003E ---[ 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.",
  "published": "2026-01-14T15:15:59Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00191,
  "epssPercentile": 0.08783,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-71107",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.69-1",
      "fix": "DEBIAN-CVE-2025-71107",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-71107",
      "released": "2026-01-14T15:15:59Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.18.3-1",
      "fix": "DEBIAN-CVE-2025-71107",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-71107",
      "released": "2026-01-14T15:15:59Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}