FKIE_CVE-2024-26820

Vulnerability from fkie_nvd - Published: 2024-04-17 10:15 - Updated: 2026-06-17 07:18
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: hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed If hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER handler cannot perform VF register successfully as the register call is received before netvsc_probe is finished. This is because we register register_netdevice_notifier() very early( even before vmbus_driver_register()). To fix this, we try to register each such matching VF( if it is visible as a netdevice) at the end of netvsc_probe.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/309ef7de5d840e17607e7d65cbf297c0564433efPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d29a58d96a78728cb01ee29ed70dc4bd642f135Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5b10a88f64c0315cfdef45de0aaaa4eef57de0b7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a71302c8638939c45e4ba5a99ea438185fd3f418Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b6d46f306b3964d05055ddaa96b58cd8bd3a472cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bcb7164258d0a9a8aa2e73ddccc2d78f67d2519dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7441c77c91e47f653104be8353b44a3366a5366Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/309ef7de5d840e17607e7d65cbf297c0564433efPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4d29a58d96a78728cb01ee29ed70dc4bd642f135Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5b10a88f64c0315cfdef45de0aaaa4eef57de0b7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a71302c8638939c45e4ba5a99ea438185fd3f418Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b6d46f306b3964d05055ddaa96b58cd8bd3a472cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bcb7164258d0a9a8aa2e73ddccc2d78f67d2519dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c7441c77c91e47f653104be8353b44a3366a5366Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlMailing List
0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-265688.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
debian debian_linux 10.0
To clipboard 

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    },
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          "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed\n\nIf hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER\nhandler cannot perform VF register successfully as the register call\nis received before netvsc_probe is finished. This is because we\nregister register_netdevice_notifier() very early( even before\nvmbus_driver_register()).\nTo fix this, we try to register each such matching VF( if it is visible\nas a netdevice) at the end of netvsc_probe."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: hv_netvsc: registre VF en netvsc_probe si se perdi\u00f3 NET_DEVICE_REGISTER. Si el controlador hv_netvsc se descarga y se vuelve a cargar, el controlador NET_DEVICE_REGISTER no puede realizar el registro VF exitosamente ya que la llamada de registro se recibe antes de que finalice netvsc_probe. Esto se debe a que registramos Register_netdevice_notifier() muy temprano (incluso antes de vmbus_driver_register()). Para solucionar este problema, intentamos registrar cada VF coincidente (si es visible como un dispositivo de red) al final de netvsc_probe."
    }
  ],
  "id": "CVE-2024-26820",
  "lastModified": "2026-06-17T07:18:25.910",
  "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"
      }
    ],
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        "ssvcData": {
          "id": "CVE-2024-26820",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-28T19:59:53.031569Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-04-17T10:15:08.867",
  "references": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.