FKIE_CVE-2021-47600

Vulnerability from fkie_nvd - Published: 2024-06-19 15:15 - Updated: 2026-06-17 04:18
Severity
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: dm btree remove: fix use after free in rebalance_children() Move dm_tm_unlock() after dm_tm_dec().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b8d2789dad0005fd5e7d35dab26a8e1203fb6daPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/293f957be5e39720778fb1851ced7f5fba6d51c3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/501ecd90efdc9b2edc6c28852ecd098a4adf8f00Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/607beb420b3fe23b948a9bf447d993521a02fbbbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66ea642af6fd4eacb5d0271a922130fcf8700424Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a48f6a2bf33734ec5669ee03067dfb6c5b4818d6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b03abd0aa09c05099f537cb05b8460c4298f0861Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1b8d2789dad0005fd5e7d35dab26a8e1203fb6daPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/293f957be5e39720778fb1851ced7f5fba6d51c3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/501ecd90efdc9b2edc6c28852ecd098a4adf8f00Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/607beb420b3fe23b948a9bf447d993521a02fbbbPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/66ea642af6fd4eacb5d0271a922130fcf8700424Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a48f6a2bf33734ec5669ee03067dfb6c5b4818d6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b03abd0aa09c05099f537cb05b8460c4298f0861Patch
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 *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/persistent-data/dm-btree-remove.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a48f6a2bf33734ec5669ee03067dfb6c5b4818d6",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            },
            {
              "lessThan": "66ea642af6fd4eacb5d0271a922130fcf8700424",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            },
            {
              "lessThan": "b03abd0aa09c05099f537cb05b8460c4298f0861",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            },
            {
              "lessThan": "293f957be5e39720778fb1851ced7f5fba6d51c3",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            },
            {
              "lessThan": "501ecd90efdc9b2edc6c28852ecd098a4adf8f00",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            },
            {
              "lessThan": "0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            },
            {
              "lessThan": "607beb420b3fe23b948a9bf447d993521a02fbbb",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            },
            {
              "lessThan": "1b8d2789dad0005fd5e7d35dab26a8e1203fb6da",
              "status": "affected",
              "version": "3241b1d3e0aaafbfcd320f4d71ade629728cc4f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/persistent-data/dm-btree-remove.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.2"
            },
            {
              "lessThan": "3.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.296",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.294",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.259",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1FF3BCF2-4788-45E7-BDAC-845DEBF8922F",
              "versionEndExcluding": "4.4.296",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BEC14782-2EE3-4635-A927-91559E4F451C",
              "versionEndExcluding": "4.9.294",
              "versionStartIncluding": "4.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "390D64FF-1DB7-4DD1-ADEF-CE96BEA2607C",
              "versionEndExcluding": "4.14.259",
              "versionStartIncluding": "4.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2D0D89BC-6CF8-4BFB-8C91-472348052528",
              "versionEndExcluding": "4.19.222",
              "versionStartIncluding": "4.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "195EBAA1-4CCE-4898-9351-F4A0DBCAA022",
              "versionEndExcluding": "5.4.168",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A657B2D0-5B9D-42BE-A3BF-228DBC1B057C",
              "versionEndExcluding": "5.10.88",
              "versionStartIncluding": "5.5",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "11274E95-438A-449A-B100-01B2B0046669",
              "versionEndExcluding": "5.15.11",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm btree remove: fix use after free in rebalance_children()\n\nMove dm_tm_unlock() after dm_tm_dec()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dm btree remove: corrige el use after free en rebalance_children() Mueve dm_tm_unlock() despu\u00e9s de dm_tm_dec()."
    }
  ],
  "id": "CVE-2021-47600",
  "lastModified": "2026-06-17T04:18:07.580",
  "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47600",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-06-20T17:58:48.172185Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-06-19T15:15:54.567",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "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.