fkie_cve-2022-50138
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-11-18 02:59
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: RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr() __qedr_alloc_mr() allocates a memory chunk for "mr->info.pbl_table" with init_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, "mr" is released while "mr->info.pbl_table" is not released, which will lead to a memory leak. We should release the "mr->info.pbl_table" with qedr_free_pbl() when error occurs to fix the memory leak.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07ba048df306dc93fc4d2ef670b9e24644a2069fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79ce50dddaf28b5c57911ecc80a2be17a0b17f83Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e647a8d5fc0a2c8e0f36f585a6388286a25bb15Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3236a64ddd125a455ef5b5316c1b9051b732974Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4c9f7db9f0148423557539af0fdf513338efe08Patch
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": "F3E419A0-9181-43F0-96F3-F0ACC786F80A",
              "versionEndExcluding": "5.10.137",
              "versionStartIncluding": "4.9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "51861563-7F40-460F-82CD-2D3FBDAD6618",
              "versionEndExcluding": "5.15.61",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5B42E453-8837-49D0-A5EF-03F818A6DC11",
              "versionEndExcluding": "5.18.18",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A1A2A5A5-4598-4D7E-BA07-4660398D6C8F",
              "versionEndExcluding": "5.19.2",
              "versionStartIncluding": "5.19",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/qedr: Fix potential memory leak in __qedr_alloc_mr()\n\n__qedr_alloc_mr() allocates a memory chunk for \"mr-\u003einfo.pbl_table\" with\ninit_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, \"mr\"\nis released while \"mr-\u003einfo.pbl_table\" is not released, which will lead\nto a memory leak.\n\nWe should release the \"mr-\u003einfo.pbl_table\" with qedr_free_pbl() when error\noccurs to fix the memory leak."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/qedr: Se corrige una posible fuga de memoria en __qedr_alloc_mr(). __qedr_alloc_mr() asigna un fragmento de memoria para \"mr-\u0026gt;info.pbl_table\" con init_mr_info(). Cuando fallan rdma_alloc_tid() y rdma_register_tid(), se libera \"mr\" mientras que \"mr-\u0026gt;info.pbl_table\" no, lo que provoca una fuga de memoria. Deber\u00edamos liberar \"mr-\u0026gt;info.pbl_table\" con qedr_free_pbl() cuando se produzca el error para corregir la fuga de memoria."
    }
  ],
  "id": "CVE-2022-50138",
  "lastModified": "2025-11-18T02:59:18.993",
  "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"
      }
    ]
  },
  "published": "2025-06-18T11:15:43.733",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/07ba048df306dc93fc4d2ef670b9e24644a2069f"
    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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