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CVE-2022-50065

Estado: AnalizadaMedia (5.5)—

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

virtio_net: fix memory leak inside XPD_TX with mergeable

When we call xdp_convert_buff_to_frame() to get xdpf, if it returns NULL, we should check if xdp_page was allocated by xdp_linearize_page(). If it is newly allocated, it should be freed here alone. Just like any other "goto err_xdp".

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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          "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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              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix",
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          ],
          "programFiles": [
            "drivers/net/virtio_net.c"
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          "defaultStatus": "affected"
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  ],
  "published": "2025-06-18T11:15:35.267",
  "references": [
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      "url": "https://git.kernel.org/stable/c/18e383afbd7047af7b055df6e25436e0ce28f8a5",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_net: fix memory leak inside XPD_TX with mergeable\n\nWhen we call xdp_convert_buff_to_frame() to get xdpf, if it returns\nNULL, we should check if xdp_page was allocated by xdp_linearize_page().\nIf it is newly allocated, it should be freed here alone. Just like any\nother \"goto err_xdp\"."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: virtio_net: se corrige una fuga de memoria dentro de XPD_TX con un objeto fusionable. Al llamar a xdp_convert_buff_to_frame() para obtener xdpf, si devuelve NULL, debemos comprobar si xdp_page fue asignado por xdp_linearize_page(). Si es una asignación reciente, debe liberarse aquí únicamente. Al igual que con cualquier otro \"goto err_xdp\"."
    }
  ],
  "lastModified": "2026-06-17T05:22:40.910",
  "configurations": [
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