{
  "cveId": "CVE-2022-50753",
  "url": "https://patchblox.com/security/cve/CVE-2022-50753",
  "summary": "CVE-2022-50753 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50753, released December 24, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to do sanity check on summary info  As...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to do sanity check on summary info  As Wenqing Liu reported in bugzilla:  https://bugzilla.kernel.org/show_bug.cgi?id=216456  BUG: KASAN: use-after-free in recover_data\u002B0x63ae/0x6ae0 [f2fs] Read of size 4 at addr ffff8881464dcd80 by task mount/1013  CPU: 3 PID: 1013 Comm: mount Tainted: G        W          6.0.0-rc4 #1 Hardware name: QEMU Standard PC (Q35 \u002B ICH9, 2009), BIOS 1.15.0-1 04/01/2014 Call Trace:  dump_stack_lvl\u002B0x45/0x5e  print_report.cold\u002B0xf3/0x68d  kasan_report\u002B0xa8/0x130  recover_data\u002B0x63ae/0x6ae0 [f2fs]  f2fs_recover_fsync_data\u002B0x120d/0x1fc0 [f2fs]  f2fs_fill_super\u002B0x4665/0x61e0 [f2fs]  mount_bdev\u002B0x2cf/0x3b0  legacy_get_tree\u002B0xed/0x1d0  vfs_get_tree\u002B0x81/0x2b0  path_mount\u002B0x47e/0x19d0  do_mount\u002B0xce/0xf0  __x64_sys_mount\u002B0x12c/0x1a0  do_syscall_64\u002B0x38/0x90  entry_SYSCALL_64_after_hwframe\u002B0x63/0xcd  The root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node is larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size page.  - recover_data  - do_recover_data   - check_index_in_prev_nodes    - f2fs_data_blkaddr  This patch adds sanity check on summary info in recovery and GC flow in where the flows rely on them.  After patch: [   29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018",
  "published": "2025-12-24T13:16:02Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss": 0.00205,
  "epssPercentile": 0.10505,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50753",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50753",
      "released": "2025-12-24T13:16:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50753",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50753",
      "released": "2025-12-24T13:16:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50753",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50753",
      "released": "2025-12-24T13:16:02Z"
    }
  ],
  "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"
  }
}