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CVE-2022-49226

Estado: AnalizadaMedia (5.5)—

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

net: asix: add proper error handling of usb read errors

Syzbot once again hit uninit value in asix driver. The problem still the same -- asix_read_cmd() reads less bytes, than was requested by caller.

Since all read requests are performed via asix_read_cmd() let's catch usb related error there and add __must_check notation to be sure all callers actually check return value.

So, this patch adds sanity check inside asix_read_cmd(), that simply checks if bytes read are not less, than was requested and adds missing error handling of asix_read_cmd() all across the driver code.

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-2022-49226",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "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"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "d9fe64e511144c1ee7d7555b4111f09dde9692ef",
              "lessThan": "b96a7265f763b37ff3138b9ca8122a950f13b00e",
              "versionType": "git"
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            {
              "status": "affected",
              "version": "d9fe64e511144c1ee7d7555b4111f09dde9692ef",
              "lessThan": "9ea8d2fca8fea3b17005b4dc02f8ef15f7a2fb97",
              "versionType": "git"
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            {
              "status": "affected",
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              "lessThan": "662ff765470ad0d11a1153d6d8e99d69a98e60b4",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "920a9fa27e7805499cfe78491b36fed2322c02ec",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/usb/asix.h",
            "drivers/net/usb/asix_common.c",
            "drivers/net/usb/asix_devices.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.9"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.9",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.33",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/usb/asix.h",
            "drivers/net/usb/asix_common.c",
            "drivers/net/usb/asix_devices.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-02-26T07:00:59.650",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/662ff765470ad0d11a1153d6d8e99d69a98e60b4",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/920a9fa27e7805499cfe78491b36fed2322c02ec",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9ea8d2fca8fea3b17005b4dc02f8ef15f7a2fb97",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b96a7265f763b37ff3138b9ca8122a950f13b00e",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: asix: add proper error handling of usb read errors\n\nSyzbot once again hit uninit value in asix driver. The problem still the\nsame -- asix_read_cmd() reads less bytes, than was requested by caller.\n\nSince all read requests are performed via asix_read_cmd() let's catch\nusb related error there and add __must_check notation to be sure all\ncallers actually check return value.\n\nSo, this patch adds sanity check inside asix_read_cmd(), that simply\nchecks if bytes read are not less, than was requested and adds missing\nerror handling of asix_read_cmd() all across the driver code."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: asix: agregar manejo de errores adecuado para errores de lectura de USB Syzbot una vez más alcanzó un valor uninit en el controlador asix. El problema sigue siendo el mismo: asix_read_cmd() lee menos bytes de los que solicitó el llamador. Dado que todas las solicitudes de lectura se realizan a través de asix_read_cmd(), detectemos el error relacionado con USB allí y agreguemos la notación __must_check para asegurarnos de que todos los llamadores realmente verifiquen el valor de retorno. Entonces, este parche agrega una verificación de cordura dentro de asix_read_cmd(), que simplemente verifica si los bytes leídos no son menores que los solicitados y agrega la gestión de errores faltantes de asix_read_cmd() en todo el código del controlador."
    }
  ],
  "lastModified": "2026-06-17T05:17:26.573",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "5.15.33",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.16.19",
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          "operator": "OR"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}