{
  "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-2023-53681",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53681",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-07T15:21:35.315Z",
    "updatedAt": "2026-05-11T19:49:51.739Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbcache: Fix __bch_btree_node_alloc to make the failure behavior consistent\n\nIn some specific situations, the return value of __bch_btree_node_alloc\nmay be NULL. This may lead to a potential NULL pointer dereference in\ncaller function like a calling chain :\nbtree_split->bch_btree_node_alloc->__bch_btree_node_alloc.\n\nFix it by initializing the return value in __bch_btree_node_alloc.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060",
              "status": "affected",
              "versionType": "git",
              "lessThan": "587b4e8bb5dac682f09280ab35db4632b29d5ac4"
            },
            {
              "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b070f29a61436f6f8a2e3abc7ea4f4be81695198"
            },
            {
              "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a4405f6ee03323410d7b10966fd67b35f71b1944"
            },
            {
              "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f67b0e3081f2a24170280a33ac66f6b112083c03"
            },
            {
              "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ecea5ce3dc17339c280c75b58ac93d8c8620d9f"
            },
            {
              "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4514847aee18d9391a0cf3aad75d3567c72795a4"
            },
            {
              "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060",
              "status": "affected",
              "versionType": "git",
              "lessThan": "80fca8a10b604afad6c14213fdfd816c4eda3ee4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.10"
            },
            {
              "version": "4.19.291",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.121",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.4.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}