fkie_cve-2021-47470
Vulnerability from fkie_nvd
Published
2024-05-22 07:15
Modified
2025-01-14 17:33
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: mm, slub: fix potential use-after-free in slab_debugfs_fops When sysfs_slab_add failed, we shouldn't call debugfs_slab_add() for s because s will be freed soon. And slab_debugfs_fops will use s later leading to a use-after-free.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00cPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 5.15
linux linux_kernel 5.15
linux linux_kernel 5.15
linux linux_kernel 5.15
linux linux_kernel 5.15
linux linux_kernel 5.15


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7B0C1B4E-5CC9-4DDA-BCEF-02A0A22BBE53",
              "versionEndExcluding": "5.14.15",
              "versionStartIncluding": "5.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644",
              "vulnerable": true
            },
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              "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56",
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              "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71",
              "vulnerable": true
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              "matchCriteriaId": "AF55383D-4DF2-45DC-93F7-571F4F978EAB",
              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "9E9481B2-8AA6-4CBD-B5D3-C10F51FF6D01",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*",
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          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm, slub: fix potential use-after-free in slab_debugfs_fops\n\nWhen sysfs_slab_add failed, we shouldn\u0027t call debugfs_slab_add() for s\nbecause s will be freed soon.  And slab_debugfs_fops will use s later\nleading to a use-after-free."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm, slub: corrige el posible use-after-free en slab_debugfs_fops Cuando sysfs_slab_add falla, no debemos llamar a debugfs_slab_add() para s porque s se liberar\u00e1 pronto. Y slab_debugfs_fops usar\u00e1 s m\u00e1s tarde, lo que conducir\u00e1 a un use-after-free."
    }
  ],
  "id": "CVE-2021-47470",
  "lastModified": "2025-01-14T17:33:02.370",
  "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"
      }
    ]
  },
  "published": "2024-05-22T07:15:11.763",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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