{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-50766",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50766",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-24T13:05:56.873Z",
    "updatedAt": "2026-05-11T19:25:07.774Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer\n\nsyzbot is reporting uninit-value in btrfs_clean_tree_block() [1], for\ncommit bc877d285ca3dba2 (\"btrfs: Deduplicate extent_buffer init code\")\nmissed that btrfs_set_header_generation() in btrfs_init_new_buffer() must\nnot be moved to after clean_tree_block() because clean_tree_block() is\ncalling btrfs_header_generation() since commit 55c69072d6bd5be1 (\"Btrfs:\nFix extent_buffer usage when nodesize != leafsize\").\n\nSince memzero_extent_buffer() will reset \"struct btrfs_header\" part, we\ncan't move btrfs_set_header_generation() to before memzero_extent_buffer().\nJust re-add btrfs_set_header_generation() before btrfs_clean_tree_block().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bc877d285ca3dba24c52406946a4a69847cc7422",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0a408c6212c16b9a2a1141d3c531247582ef8101"
            },
            {
              "version": "bc877d285ca3dba24c52406946a4a69847cc7422",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a687c2890fe4a2acaac6941fa4097a1264d8f3eb"
            },
            {
              "version": "bc877d285ca3dba24c52406946a4a69847cc7422",
              "status": "affected",
              "versionType": "git",
              "lessThan": "89bc41c92d10b905c60f6ec13c9ef664a3555c54"
            },
            {
              "version": "bc877d285ca3dba24c52406946a4a69847cc7422",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cbddcc4fa3443fe8cfb2ff8e210deb1f6a0eea38"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.19"
            },
            {
              "version": "5.15.75",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.19.17",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "version": "6.0.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}