FKIE_CVE-2021-47378

Vulnerability from fkie_nvd - Published: 2024-05-21 15:15 - Updated: 2025-04-02 14:52
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme-rdma: destroy cm id before destroy qp to avoid use after free We should always destroy cm_id before destroy qp to avoid to get cma event after qp was destroyed, which may lead to use after free. In RDMA connection establishment error flow, don't destroy qp in cm event handler.Just report cm_error to upper level, qp will be destroy in nvme_rdma_alloc_queue() after destroy cm id.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.15
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8ECC9806-1A88-441B-9504-CD4A53C66847",
              "versionEndExcluding": "5.10.70",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1B31D6C1-A751-438D-906B-0C56B789D498",
              "versionEndExcluding": "5.14.9",
              "versionStartIncluding": "5.11",
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              "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*",
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          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-rdma: destroy cm id before destroy qp to avoid use after free\n\nWe should always destroy cm_id before destroy qp to avoid to get cma\nevent after qp was destroyed, which may lead to use after free.\nIn RDMA connection establishment error flow, don\u0027t destroy qp in cm\nevent handler.Just report cm_error to upper level, qp will be destroy\nin nvme_rdma_alloc_queue() after destroy cm id."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvme-rdma: destruye cm id antes de destruir qp para evitar su use after free. Siempre debemos destruir cm_id antes de destruir qp para evitar que se produzca un evento cma despu\u00e9s de que se destruya qp, lo que puede llevar a use after free. En el flujo de error de establecimiento de conexi\u00f3n RDMA, no destruya qp en el controlador de eventos cm. Simplemente informe cm_error al nivel superior, qp se destruir\u00e1 en nvme_rdma_alloc_queue() despu\u00e9s de destruir cm id."
    }
  ],
  "id": "CVE-2021-47378",
  "lastModified": "2025-04-02T14:52:37.450",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
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  "published": "2024-05-21T15:15:23.527",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-416"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.