{
  "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-2023-53214",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53214",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-15T14:21:42.331Z",
    "updatedAt": "2026-08-05T09:13:07.520Z",
    "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": "f2fs: fix to avoid potential memory corruption in __update_iostat_latency()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential memory corruption in __update_iostat_latency()\n\nAdd iotype sanity check to avoid potential memory corruption.\nThis is to fix the compile error below:\n\nfs/f2fs/iostat.c:231 __update_iostat_latency() error: buffer overflow\n'io_lat->peak_lat[type]' 3 <= 3\n\nvim +228 fs/f2fs/iostat.c\n\n  211  static inline void __update_iostat_latency(struct bio_iostat_ctx\n\t*iostat_ctx,\n  212\t\t\t\t\tenum iostat_lat_type type)\n  213  {\n  214\t\tunsigned long ts_diff;\n  215\t\tunsigned int page_type = iostat_ctx->type;\n  216\t\tstruct f2fs_sb_info *sbi = iostat_ctx->sbi;\n  217\t\tstruct iostat_lat_info *io_lat = sbi->iostat_io_lat;\n  218\t\tunsigned long flags;\n  219\n  220\t\tif (!sbi->iostat_enable)\n  221\t\t\treturn;\n  222\n  223\t\tts_diff = jiffies - iostat_ctx->submit_ts;\n  224\t\tif (page_type >= META_FLUSH)\n                                 ^^^^^^^^^^\n\n  225\t\t\tpage_type = META;\n  226\n  227\t\tspin_lock_irqsave(&sbi->iostat_lat_lock, flags);\n @228\t\tio_lat->sum_lat[type][page_type] += ts_diff;\n                                      ^^^^^^^^^\nMixup between META_FLUSH and NR_PAGE_TYPE leads to memory corruption.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aa4d726af72a21732ce120484e0b1240674a13b3"
            },
            {
              "version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "22ddbbff116ee7dce5431feb1c0f36a507d2d68d"
            },
            {
              "version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "20b4f3de0f3932f71b4a8daf0671e517a8d98022"
            },
            {
              "version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0dbbf0fb38d5ec5d4138d1aeaeb43d9217b9a592"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.15"
            },
            {
              "version": "5.15.100",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}