{
  "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-2023-54062",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54062",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-24T12:23:08.649Z",
    "updatedAt": "2026-10-15T21:41:38.822Z",
    "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": "ext4: fix invalid free tracking in ext4_xattr_move_to_block()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix invalid free tracking in ext4_xattr_move_to_block()\n\nIn ext4_xattr_move_to_block(), the value of the extended attribute\nwhich we need to move to an external block may be allocated by\nkvmalloc() if the value is stored in an external inode.  So at the end\nof the function the code tried to check if this was the case by\ntesting entry->e_value_inum.\n\nHowever, at this point, the pointer to the xattr entry is no longer\nvalid, because it was removed from the original location where it had\nbeen stored.  So we could end up calling kvfree() on a pointer which\nwas not allocated by kvmalloc(); or we could also potentially leak\nmemory by not freeing the buffer when it should be freed.  Fix this by\nstoring whether it should be freed in a separate variable.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c7851208abffe5ae4deb01cf48763911dc14fc67",
              "status": "affected",
              "versionType": "git",
              "lessThan": "76887be2a96193cd11be818551b8934ecdb3123f"
            },
            {
              "version": "f5cdc6a7339f250d44d4d469ed7a474ac0d6c7a7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f30f3391d089dc91aef91d08f4b04a6c0df2b067"
            },
            {
              "version": "3b28c799a1334adb5a19f42f03abe0d8cbb05938",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba04d6af5ac440a6d5a2d35dc1d8e2cb0323550a"
            },
            {
              "version": "d738789ae9ec47d3458a008788f3cdc862ebf0cb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1a8822343e67432b658145d2760a524c884da9d4"
            },
            {
              "version": "a6744e14ce7045ab1a728bde9595f62fbd39f1d2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8beaa3cb293a8f7bacf711cf52201d59859dbc40"
            },
            {
              "version": "8b6d06b3be7648b3b0f428558293ddf6e2cb94bf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c5fa4eedddd1c8342ce533cb401c0e693e55b4e3"
            },
            {
              "version": "d2efaf8c870c7067b8d1779773134f3481cd8f68",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a18670395e5f28acddeca037c5e4bd2ea961b70a"
            },
            {
              "version": "1e9d62d252812575ded7c620d8fc67c32ff06c16",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b2fab1807d26acd1c6115b95b5eddd697d84751b"
            },
            {
              "version": "1e9d62d252812575ded7c620d8fc67c32ff06c16",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b87c7cdf2bed4928b899e1ce91ef0d147017ba45"
            },
            {
              "version": "4.14.308",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.14.315"
            },
            {
              "version": "4.19.276",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.283"
            },
            {
              "version": "5.4.235",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.243"
            },
            {
              "version": "5.10.173",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.180"
            },
            {
              "version": "5.15.99",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.112"
            },
            {
              "version": "6.1.16",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.29"
            },
            {
              "version": "6.2.3",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.2.16"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.3",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.3"
            },
            {
              "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": "5.15.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.29",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "version": "6.4",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}