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CVE-2026-31757

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

usb: misc: usbio: Fix URB memory leak on submit failure

When usb_submit_urb() fails in usbio_probe(), the previously allocated URB is never freed, causing a memory leak.

Fix this by jumping to err_free_urb label to properly release the URB on the error path.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-31757",
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        "source": "nvd@nist.gov",
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "product": "Linux",
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              "versionType": "semver"
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              "versionType": "semver",
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            {
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver",
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              "status": "unaffected",
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          "programFiles": [
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          "defaultStatus": "affected"
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  "published": "2026-05-01T15:16:38.700",
  "references": [
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      "url": "https://git.kernel.org/stable/c/1762dc43b983d321180582afba4a0c5185fae04c",
      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-401"
        }
      ]
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: misc: usbio: Fix URB memory leak on submit failure\n\nWhen usb_submit_urb() fails in usbio_probe(), the previously allocated\nURB is never freed, causing a memory leak.\n\nFix this by jumping to err_free_urb label to properly release the URB\non the error path."
    }
  ],
  "lastModified": "2026-06-17T10:34:24.443",
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