fkie_cve-2024-50208
Vulnerability from fkie_nvd
Published
2024-11-08 06:15
Modified
2024-11-19 16:23
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/bnxt_re: Fix a bug while setting up Level-2 PBL pages Avoid memory corruption while setting up Level-2 PBL pages for the non MR resources when num_pages > 256K. There will be a single PDE page address (contiguous pages in the case of > PAGE_SIZE), but, current logic assumes multiple pages, leading to invalid memory access after 256K PBL entries in the PDE.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7988bdbbb85ac85a847baf09879edcd0f70521dcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87cb3b0054e53e0155b630bdf8fb714ded62565fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/daac56dd98e1ba814c878ac0acd482a37f2ab94bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de5857fa7bcc9a496a914c7e21390be873109f26Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/df6fed0a2a1a5e57f033bca40dc316b18e0d0ce6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ea701c1849e7250ea41a4f7493e0a5f136c1d47ePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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              "matchCriteriaId": "2EADCAD4-13A5-494E-8458-135A798BE1A6",
              "versionEndExcluding": "5.10.229",
              "versionStartIncluding": "5.7",
              "vulnerable": true
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            },
            {
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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\nRDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages\n\nAvoid memory corruption while setting up Level-2 PBL pages for the non MR\nresources when num_pages \u003e 256K.\n\nThere will be a single PDE page address (contiguous pages in the case of \u003e\nPAGE_SIZE), but, current logic assumes multiple pages, leading to invalid\nmemory access after 256K PBL entries in the PDE."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/bnxt_re: Se corrige un error al configurar p\u00e1ginas PBL de nivel 2 Evita la corrupci\u00f3n de memoria al configurar p\u00e1ginas PBL de nivel 2 para los recursos que no son MR cuando num_pages \u0026gt; 256K. Habr\u00e1 una \u00fanica direcci\u00f3n de p\u00e1gina PDE (p\u00e1ginas contiguas en el caso de \u0026gt; PAGE_SIZE), pero la l\u00f3gica actual supone varias p\u00e1ginas, lo que genera un acceso a memoria no v\u00e1lido despu\u00e9s de 256K entradas PBL en el PDE."
    }
  ],
  "id": "CVE-2024-50208",
  "lastModified": "2024-11-19T16:23:48.507",
  "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": "2024-11-08T06:15:17.203",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/7988bdbbb85ac85a847baf09879edcd0f70521dc"
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/daac56dd98e1ba814c878ac0acd482a37f2ab94b"
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/de5857fa7bcc9a496a914c7e21390be873109f26"
    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/df6fed0a2a1a5e57f033bca40dc316b18e0d0ce6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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