{
  "cveId": "CVE-2023-52848",
  "url": "https://patchblox.com/security/cve/CVE-2023-52848",
  "summary": "CVE-2023-52848 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52848, released May 21, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to drop meta_inode\u0027s page cache in f2f...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to drop meta_inode\u0027s page cache in f2fs_put_super()  syzbot reports a kernel bug as below:  F2FS-fs (loop1): detect filesystem reference count leak during umount, type: 10, count: 1 kernel BUG at fs/f2fs/super.c:1639! CPU: 0 PID: 15451 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-09338-ge0152e7481c6 #0 RIP: 0010:f2fs_put_super\u002B0xce1/0xed0 fs/f2fs/super.c:1639 Call Trace:  generic_shutdown_super\u002B0x161/0x3c0 fs/super.c:693  kill_block_super\u002B0x3b/0x70 fs/super.c:1646  kill_f2fs_super\u002B0x2b7/0x3d0 fs/f2fs/super.c:4879  deactivate_locked_super\u002B0x9a/0x170 fs/super.c:481  deactivate_super\u002B0xde/0x100 fs/super.c:514  cleanup_mnt\u002B0x222/0x3d0 fs/namespace.c:1254  task_work_run\u002B0x14d/0x240 kernel/task_work.c:179  resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]  exit_to_user_mode_loop kernel/entry/common.c:171 [inline]  exit_to_user_mode_prepare\u002B0x210/0x240 kernel/entry/common.c:204  __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]  syscall_exit_to_user_mode\u002B0x1d/0x60 kernel/entry/common.c:296  do_syscall_64\u002B0x44/0xb0 arch/x86/entry/common.c:86  entry_SYSCALL_64_after_hwframe\u002B0x63/0xcd  In f2fs_put_super(), it tries to do sanity check on dirty and IO reference count of f2fs, once there is any reference count leak, it will trigger panic.  The root case is, during f2fs_put_super(), if there is any IO error in f2fs_wait_on_all_pages(), we missed to truncate meta_inode\u0027s page cache later, result in panic, fix this case.",
  "published": "2024-05-21T16:15:21Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00236,
  "epssPercentile": 0.14604,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.6.8-1",
      "fix": "DEBIAN-CVE-2023-52848",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52848",
      "released": "2024-05-21T16:15:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.6.8-1",
      "fix": "DEBIAN-CVE-2023-52848",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52848",
      "released": "2024-05-21T16:15:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}