FKIE_CVE-2023-52804

Vulnerability from fkie_nvd - Published: 2024-05-21 16:15 - Updated: 2026-08-04 10:18
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for db_maxag and db_agpref Both db_maxag and db_agpref are used as the index of the db_agfree array, but there is currently no validity check for db_maxag and db_agpref, which can lead to errors. The following is related bug reported by Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 index 7936 is out of range for type 'atomic_t[128]' Add checking that the values of db_maxag and db_agpref are valid indexes for the db_agfree array.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fbPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
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          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
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              "version": "6.7",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/jfs: Add validity check for db_maxag and db_agpref\n\nBoth db_maxag and db_agpref are used as the index of the\ndb_agfree array, but there is currently no validity check for\ndb_maxag and db_agpref, which can lead to errors.\n\nThe following is related bug reported by Syzbot:\n\nUBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20\nindex 7936 is out of range for type \u0027atomic_t[128]\u0027\n\nAdd checking that the values of db_maxag and db_agpref are valid\nindexes for the db_agfree array."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: fs/jfs: agregue verificaci\u00f3n de validez para db_maxag y db_agpref. Tanto db_maxag como db_agpref se utilizan como \u00edndice de la matriz db_agfree, pero actualmente no hay verificaci\u00f3n de validez para db_maxag y db_agpref, lo cual puede dar lugar a errores. El siguiente es un error relacionado reportado por Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 el \u00edndice 7936 est\u00e1 fuera de rango para el tipo \u0027atomic_t[128]\u0027 Agregue verificando que el Los valores de db_maxag y db_agpref son \u00edndices v\u00e1lidos para la matriz db_agfree."
    }
  ],
  "id": "CVE-2023-52804",
  "lastModified": "2026-08-04T10:18:42.377",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
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          "baseScore": 7.8,
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          "confidentialityImpact": "HIGH",
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          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T15:36:50.346379Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-05-21T16:15:18.820",
  "references": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-129"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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