FKIE_CVE-2021-47166

Vulnerability from fkie_nvd - Published: 2024-03-25 10:15 - Updated: 2026-06-17 04:16
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce() The value of mirror->pg_bytes_written should only be updated after a successful attempt to flush out the requests on the list.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0d0ea309357dea0d85a82815f02157eb7fcda39fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fe1cac336b55a1f79e603e9ce3552c3623e90ebPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/40f139a6d50c232c0d1fd1c5e65a845c62db0edePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7087db95c0a06ab201b8ebfac6a7ec1e34257997Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/785917316b25685c9b3a2a88f933139f2de75e33Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b291baae24f876acd5a5dd57d0bb2bbac8a68b0cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c757c1f1e65d89429db1409429436cf40d47c008Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e8b8418ce14ae66ee55179901edd12191ab06a9ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0d0ea309357dea0d85a82815f02157eb7fcda39fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2fe1cac336b55a1f79e603e9ce3552c3623e90ebPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/40f139a6d50c232c0d1fd1c5e65a845c62db0edePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7087db95c0a06ab201b8ebfac6a7ec1e34257997Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/785917316b25685c9b3a2a88f933139f2de75e33Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b291baae24f876acd5a5dd57d0bb2bbac8a68b0cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c757c1f1e65d89429db1409429436cf40d47c008Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e8b8418ce14ae66ee55179901edd12191ab06a9ePatch
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 5.13
linux linux_kernel 5.13
linux linux_kernel 5.13
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/pagelist.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e8b8418ce14ae66ee55179901edd12191ab06a9e",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            },
            {
              "lessThan": "b291baae24f876acd5a5dd57d0bb2bbac8a68b0c",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            },
            {
              "lessThan": "c757c1f1e65d89429db1409429436cf40d47c008",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            },
            {
              "lessThan": "40f139a6d50c232c0d1fd1c5e65a845c62db0ede",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            },
            {
              "lessThan": "785917316b25685c9b3a2a88f933139f2de75e33",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            },
            {
              "lessThan": "7087db95c0a06ab201b8ebfac6a7ec1e34257997",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            },
            {
              "lessThan": "2fe1cac336b55a1f79e603e9ce3552c3623e90eb",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            },
            {
              "lessThan": "0d0ea309357dea0d85a82815f02157eb7fcda39f",
              "status": "affected",
              "version": "a7d42ddb3099727f58366fa006f850a219cce6c8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/pagelist.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.0"
            },
            {
              "lessThan": "4.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.235",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.193",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.124",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2DB78FDC-C9EA-4ACD-A898-A03A3597EEDF",
              "versionEndExcluding": "4.4.271",
              "versionStartIncluding": "4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1E7DAE3A-78E9-45DB-96D8-4541CD7DC26B",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionStartIncluding": "4.10",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C8DEF3EC-88D9-4B89-8CF9-64BD6C863C9D",
              "versionEndExcluding": "4.19.193",
              "versionStartIncluding": "4.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "06FE0F99-F7A9-462A-8355-30E2EDA9826B",
              "versionEndExcluding": "5.4.124",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C3E7E799-1C8A-45FB-9E07-4731996144C9",
              "versionEndExcluding": "5.10.42",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C8A1D02-81A7-44E5-ACFD-CC6A6694F930",
              "versionEndExcluding": "5.12.9",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "96AC23B2-D46A-49D9-8203-8E1BEDCA8532",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "DA610E30-717C-4700-9F77-A3C9244F3BFD",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Don\u0027t corrupt the value of pg_bytes_written in nfs_do_recoalesce()\n\nThe value of mirror-\u003epg_bytes_written should only be updated after a\nsuccessful attempt to flush out the requests on the list."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: NFS: no corrompa el valor de pg_bytes_writing en nfs_do_recoalesce() El valor de mirror-\u0026gt;pg_bytes_write solo debe actualizarse despu\u00e9s de un intento exitoso de eliminar las solicitudes de la lista."
    }
  ],
  "id": "CVE-2021-47166",
  "lastModified": "2026-06-17T04:16:48.780",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47166",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T15:54:41.157060Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-03-25T10:15:08.667",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/0d0ea309357dea0d85a82815f02157eb7fcda39f"
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      "url": "https://git.kernel.org/stable/c/2fe1cac336b55a1f79e603e9ce3552c3623e90eb"
    },
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    },
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    },
    {
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      "tags": [
        "Patch"
      ],
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    },
    {
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    },
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      "tags": [
        "Patch"
      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
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      "tags": [
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      ],
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/785917316b25685c9b3a2a88f933139f2de75e33"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/b291baae24f876acd5a5dd57d0bb2bbac8a68b0c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/c757c1f1e65d89429db1409429436cf40d47c008"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://git.kernel.org/stable/c/e8b8418ce14ae66ee55179901edd12191ab06a9e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.