{
  "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-2023-53845",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53845",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-09T01:30:08.016Z",
    "updatedAt": "2026-05-11T19:52:37.795Z",
    "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": "nilfs2: fix infinite loop in nilfs_mdt_get_block()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix infinite loop in nilfs_mdt_get_block()\n\nIf the disk image that nilfs2 mounts is corrupted and a virtual block\naddress obtained by block lookup for a metadata file is invalid,\nnilfs_bmap_lookup_at_level() may return the same internal return code as\n-ENOENT, meaning the block does not exist in the metadata file.\n\nThis duplication of return codes confuses nilfs_mdt_get_block(), causing\nit to read and create a metadata block indefinitely.\n\nIn particular, if this happens to the inode metadata file, ifile,\nsemaphore i_rwsem can be left held, causing task hangs in lock_mount.\n\nFix this issue by making nilfs_bmap_lookup_at_level() treat virtual block\naddress translation failures with -ENOENT as metadata corruption instead\nof returning the error code.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d536f9976bb04e9c84cf80045a9355975e418f41"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8a89d36a07afe1ed4564df51fefa2bb556c85412"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8d07d9119642ba43d21f8ba64d51d01931096b20"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "25457d07c8146e57d28906c663def033dc425af6"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "34c5f17222b50c79848bb03ec8811648813e6a45"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5b29661669cb65b9750a3cf70ed3eaf947b92167"
            },
            {
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a6a491c048882e7e424d407d32cba0b52d9ef2bf"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.30",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.30"
            },
            {
              "version": "4.14.315",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.283",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.243",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.180",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.111",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.28",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.15",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "version": "6.4",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}