fkie_cve-2024-53213
Vulnerability from fkie_nvd
Published
2024-12-27 14:15
Modified
2025-01-10 18:04
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: net: usb: lan78xx: Fix double free issue with interrupt buffer allocation In lan78xx_probe(), the buffer `buf` was being freed twice: once implicitly through `usb_free_urb(dev->urb_intr)` with the `URB_FREE_BUFFER` flag and again explicitly by `kfree(buf)`. This caused a double free issue. To resolve this, reordered `kmalloc()` and `usb_alloc_urb()` calls to simplify the initialization sequence and removed the redundant `kfree(buf)`. Now, `buf` is allocated after `usb_alloc_urb()`, ensuring it is correctly managed by `usb_fill_int_urb()` and freed by `usb_free_urb()` as intended.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03819abbeb11117dcbba40bfe322b88c0c88a6b6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7ac9f3c981eeceee2ec4d30d850f4a6f50a1ec40Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/977128343fc2a30737399b58df8ea77e94f164bdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a422ebec863d99d5607fb41bb7af3347fcb436d3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b09512aea6223eec756f52aa584fc29eeab57480Patch
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": "DFA9B856-F80A-4A22-BC26-5EB65D554687",
              "versionEndExcluding": "6.1.120",
              "versionStartIncluding": "5.17",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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\nnet: usb: lan78xx: Fix double free issue with interrupt buffer allocation\n\nIn lan78xx_probe(), the buffer `buf` was being freed twice: once\nimplicitly through `usb_free_urb(dev-\u003eurb_intr)` with the\n`URB_FREE_BUFFER` flag and again explicitly by `kfree(buf)`. This caused\na double free issue.\n\nTo resolve this, reordered `kmalloc()` and `usb_alloc_urb()` calls to\nsimplify the initialization sequence and removed the redundant\n`kfree(buf)`.  Now, `buf` is allocated after `usb_alloc_urb()`, ensuring\nit is correctly managed by  `usb_fill_int_urb()` and freed by\n`usb_free_urb()` as intended."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: usb: lan78xx: Se soluciona el problema de doble liberaci\u00f3n con la asignaci\u00f3n de b\u00fafer de interrupci\u00f3n En lan78xx_probe(), el b\u00fafer `buf` se liberaba dos veces: una vez impl\u00edcitamente a trav\u00e9s de `usb_free_urb(dev-\u0026gt;urb_intr)` con el indicador `URB_FREE_BUFFER` y otra vez expl\u00edcitamente por `kfree(buf)`. Esto causaba un problema de doble liberaci\u00f3n. Para resolver esto, reordenamos las llamadas `kmalloc()` y `usb_alloc_urb()` para simplificar la secuencia de inicializaci\u00f3n y eliminamos el `kfree(buf)` redundante. Ahora, `buf` se asigna despu\u00e9s de `usb_alloc_urb()`, lo que garantiza que `usb_fill_int_urb()` lo administre correctamente y que `usb_free_urb()` lo libere como estaba previsto."
    }
  ],
  "id": "CVE-2024-53213",
  "lastModified": "2025-01-10T18:04:48.207",
  "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": "2024-12-27T14:15:29.237",
  "references": [
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      "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-415"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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