{
  "cveId": "CVE-2022-50766",
  "url": "https://patchblox.com/security/cve/CVE-2022-50766",
  "summary": "CVE-2022-50766 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50766, released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  btrfs: set generation before calling btrfs_clean...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer  syzbot is reporting uninit-value in btrfs_clean_tree_block() [1], for commit bc877d285ca3dba2 (\u0022btrfs: Deduplicate extent_buffer init code\u0022) missed that btrfs_set_header_generation() in btrfs_init_new_buffer() must not be moved to after clean_tree_block() because clean_tree_block() is calling btrfs_header_generation() since commit 55c69072d6bd5be1 (\u0022Btrfs: Fix extent_buffer usage when nodesize != leafsize\u0022).  Since memzero_extent_buffer() will reset \u0022struct btrfs_header\u0022 part, we can\u0027t move btrfs_set_header_generation() to before memzero_extent_buffer(). Just re-add btrfs_set_header_generation() before btrfs_clean_tree_block().",
  "published": "2025-12-24T13:16:03Z",
  "severity": "",
  "epss": 0.00238,
  "epssPercentile": 0.14881,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50766",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50766",
      "released": "2025-12-24T13:16:03Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50766",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50766",
      "released": "2025-12-24T13:16:03Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50766",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50766",
      "released": "2025-12-24T13:16:03Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}