FKIE_CVE-2024-36896

Vulnerability from fkie_nvd - Published: 2024-05-30 16:15 - Updated: 2025-04-01 18:35
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix access violation during port device removal Testing with KASAN and syzkaller revealed a bug in port.c:disable_store(): usb_hub_to_struct_hub() can return NULL if the hub that the port belongs to is concurrently removed, but the function does not check for this possibility before dereferencing the returned value. It turns out that the first dereference is unnecessary, since hub->intfdev is the parent of the port device, so it can be changed easily. Adding a check for hub == NULL prevents further problems. The same bug exists in the disable_show() routine, and it can be fixed the same way.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304cePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304cePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
To clipboard 

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  "cveTags": [],
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: core: Fix access violation during port device removal\n\nTesting with KASAN and syzkaller revealed a bug in port.c:disable_store():\nusb_hub_to_struct_hub() can return NULL if the hub that the port belongs to\nis concurrently removed, but the function does not check for this\npossibility before dereferencing the returned value.\n\nIt turns out that the first dereference is unnecessary, since hub-\u003eintfdev\nis the parent of the port device, so it can be changed easily.  Adding a\ncheck for hub == NULL prevents further problems.\n\nThe same bug exists in the disable_show() routine, and it can be fixed the\nsame way."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: USB: core: corrige la infracci\u00f3n de acceso durante la eliminaci\u00f3n del dispositivo del puerto. Las pruebas con KASAN y syzkaller revelaron un error en port.c:disable_store(): usb_hub_to_struct_hub() puede devolver NULL si el hub que el puerto al que pertenece se elimina simult\u00e1neamente, pero la funci\u00f3n no comprueba esta posibilidad antes de desreferenciar el valor devuelto. Resulta que la primera desreferencia es innecesaria, ya que hub-\u0026gt;intfdev es el padre del dispositivo portuario, por lo que se puede cambiar f\u00e1cilmente. Agregar una verificaci\u00f3n para hub == NULL evita m\u00e1s problemas. El mismo error existe en la rutina enable_show() y se puede solucionar de la misma manera."
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  "id": "CVE-2024-36896",
  "lastModified": "2025-04-01T18:35:04.027",
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
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  "published": "2024-05-30T16:15:13.023",
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  • 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.
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Detection rules are retrieved from Rulezet.