{
  "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-2023-53075",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53075",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-02T15:55:26.023Z",
    "updatedAt": "2026-05-11T19:38:03.944Z",
    "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": "ftrace: Fix invalid address access in lookup_rec() when index is 0",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix invalid address access in lookup_rec() when index is 0\n\nKASAN reported follow problem:\n\n BUG: KASAN: use-after-free in lookup_rec\n Read of size 8 at addr ffff000199270ff0 by task modprobe\n CPU: 2 Comm: modprobe\n Call trace:\n  kasan_report\n  __asan_load8\n  lookup_rec\n  ftrace_location\n  arch_check_ftrace_location\n  check_kprobe_address_safe\n  register_kprobe\n\nWhen checking pg->records[pg->index - 1].ip in lookup_rec(), it can get a\npg which is newly added to ftrace_pages_start in ftrace_process_locs().\nBefore the first pg->index++, index is 0 and accessing pg->records[-1].ip\nwill cause this problem.\n\nDon't check the ip when pg->index is 0.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2de28e5ce34b22b73b833a21e2c45ae3aade3964"
            },
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7569ee04b0e3b32df79f64db3a7138573edad9bc"
            },
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ac58b88ccbbb8e9fb83e137cee04a856b1ea6635"
            },
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "83c3b2f4e7c61367c7b24551f4c6eb94bbdda283"
            },
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2a0d71fabfeb349216d33f001a6421b1768bd3a9"
            },
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4f84f31f63416b0f02fc146ffdc4ab32723eb7e8"
            },
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f1bd8b7fd890d87d0dc4dedc6287ea34dd07c0b4"
            },
            {
              "version": "9644302e3315e7e36495d230d5ac7125a316d33e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ee92fa443358f4fc0017c1d0d325c27b37802504"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.5"
            },
            {
              "version": "4.14.311",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.279",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.238",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.104",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.21",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}