fkie_cve-2024-56768
Vulnerability from fkie_nvd
Published
2025-01-06 17:15
Modified
2025-01-07 22:50
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: bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP disabled can trigger the following bug, as pcpu_hot is unavailable: [ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c [ 8.471849] #PF: supervisor read access in kernel mode [ 8.471881] #PF: error_code(0x0000) - not-present page Fix by inlining a return 0 in the !CONFIG_SMP case.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/23579010cf0a12476e96a5f1acdf78a9c5843657Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4ab7d74247b0150547cf909b3f6f24ee85183dfPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BCD9BDC5-9E29-45B5-92A6-8752B9E03902",
              "versionEndExcluding": "6.12.8",
              "versionStartIncluding": "6.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13",
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              "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F",
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            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP\n\nOn x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP\ndisabled can trigger the following bug, as pcpu_hot is unavailable:\n\n [    8.471774] BUG: unable to handle page fault for address: 00000000936a290c\n [    8.471849] #PF: supervisor read access in kernel mode\n [    8.471881] #PF: error_code(0x0000) - not-present page\n\nFix by inlining a return 0 in the !CONFIG_SMP case."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Corregir bpf_get_smp_processor_id() en !CONFIG_SMP En x86-64, llamar a bpf_get_smp_processor_id() en un kernel con CONFIG_SMP deshabilitado puede provocar el siguiente error, ya que pcpu_hot no est\u00e1 disponible: [ 8.471774] ERROR: no se puede gestionar el error de p\u00e1gina para la direcci\u00f3n: 00000000936a290c [ 8.471849] #PF: acceso de lectura de supervisor en modo kernel [ 8.471881] #PF: error_code(0x0000) - p\u00e1gina no presente Corregir incrustando un retorno 0 en el caso de !CONFIG_SMP."
    }
  ],
  "id": "CVE-2024-56768",
  "lastModified": "2025-01-07T22:50:43.207",
  "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": "2025-01-06T17:15:43.800",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/23579010cf0a12476e96a5f1acdf78a9c5843657"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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