fkie_cve-2025-22050
Vulnerability from fkie_nvd
Published
2025-04-16 15:15
Modified
2025-11-03 20:17
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: usbnet:fix NPE during rx_complete Missing usbnet_going_away Check in Critical Path. The usb_submit_urb function lacks a usbnet_going_away validation, whereas __usbnet_queue_skb includes this check. This inconsistency creates a race condition where: A URB request may succeed, but the corresponding SKB data fails to be queued. Subsequent processes: (e.g., rx_complete → defer_bh → __skb_unlink(skb, list)) attempt to access skb->next, triggering a NULL pointer dereference (Kernel Panic).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c30988588b28393e3e8873d5654f910e86391baPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0f10f83acfd619e13c64d6705908dfd792f19544Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/51de3600093429e3b712e5f091d767babc5dd6dfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/95789c2f94fd29dce8759f9766baa333f749287cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/acacd48a37b52fc95f621765762c04152b58d642Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d689645cd1594ea1d13cb0c404f8ad1011353e0ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd9ee3f0d6a53844f65efde581c91bbb0ff749acPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00045.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 *


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet:fix NPE during rx_complete\n\nMissing usbnet_going_away Check in Critical Path.\nThe usb_submit_urb function lacks a usbnet_going_away\nvalidation, whereas __usbnet_queue_skb includes this check.\n\nThis inconsistency creates a race condition where:\nA URB request may succeed, but the corresponding SKB data\nfails to be queued.\n\nSubsequent processes:\n(e.g., rx_complete \u2192 defer_bh \u2192 __skb_unlink(skb, list))\nattempt to access skb-\u003enext, triggering a NULL pointer\ndereference (Kernel Panic)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usbnet:fix NPE durante rx_complete. Falta la comprobaci\u00f3n usbnet_going_away en la ruta cr\u00edtica. La funci\u00f3n usb_submit_urb carece de la validaci\u00f3n usbnet_going_away, mientras que __usbnet_queue_skb s\u00ed la incluye. Esta inconsistencia crea una condici\u00f3n de ejecuci\u00f3n donde: una solicitud URB puede ser exitosa, pero los datos SKB correspondientes no se ponen en cola. Los procesos posteriores (p. ej., rx_complete ? defer_bh ? __skb_unlink(skb, list)) intentan acceder a skb-\u0026gt;next, lo que provoca una desreferencia de puntero nulo (p\u00e1nico del kernel)."
    }
  ],
  "id": "CVE-2025-22050",
  "lastModified": "2025-11-03T20:17:39.980",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2025-04-16T15:15:58.437",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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