fkie_cve-2022-48747
Vulnerability from fkie_nvd
Published
2024-06-20 12:15
Modified
2025-03-24 18:24
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
In the Linux kernel, the following vulnerability has been resolved: block: Fix wrong offset in bio_truncate() bio_truncate() clears the buffer outside of last block of bdev, however current bio_truncate() is using the wrong offset of page. So it can return the uninitialized data. This happened when both of truncated/corrupted FS and userspace (via bdev) are trying to read the last of bdev.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6aePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6aePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "71E85CD6-FA04-45D7-9C09-3CEB02FC5C4B",
              "versionEndExcluding": "5.4.176",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "27A6621A-A196-4220-957F-334B9124E477",
              "versionEndExcluding": "5.10.96",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DF69DD7C-FD57-4914-ABB0-FAEF87B0289D",
              "versionEndExcluding": "5.15.19",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1AD9E77E-B27E-450C-8FD8-B64EC5FB002D",
              "versionEndExcluding": "5.16.5",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix wrong offset in bio_truncate()\n\nbio_truncate() clears the buffer outside of last block of bdev, however\ncurrent bio_truncate() is using the wrong offset of page. So it can\nreturn the uninitialized data.\n\nThis happened when both of truncated/corrupted FS and userspace (via\nbdev) are trying to read the last of bdev."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bloque: corrige el desplazamiento incorrecto en bio_truncate() bio_truncate() borra el b\u00fafer fuera del \u00faltimo bloque de bdev, sin embargo, el bio_truncate() actual est\u00e1 usando el desplazamiento de p\u00e1gina incorrecto. Entonces puede devolver los datos no inicializados. Esto sucedi\u00f3 cuando tanto el FS truncado/corrupto como el espacio de usuario (a trav\u00e9s de bdev) intentaban leer lo \u00faltimo de bdev."
    }
  ],
  "id": "CVE-2022-48747",
  "lastModified": "2025-03-24T18:24:37.970",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-06-20T12:15:12.960",
  "references": [
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      "tags": [
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    },
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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