fkie_cve-2025-22108
Vulnerability from fkie_nvd
Published
2025-04-16 15:16
Modified
2025-04-17 20:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Mask the bd_cnt field in the TX BD properly The bd_cnt field in the TX BD specifies the total number of BDs for the TX packet. The bd_cnt field has 5 bits and the maximum number supported is 32 with the value 0. CONFIG_MAX_SKB_FRAGS can be modified and the total number of SKB fragments can approach or exceed the maximum supported by the chip. Add a macro to properly mask the bd_cnt field so that the value 32 will be properly masked and set to 0 in the bd_cnd field. Without this patch, the out-of-range bd_cnt value will corrupt the TX BD and may cause TX timeout. The next patch will check for values exceeding 32.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/107b25db61122d8f990987895c2912927b8b6e3f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f60b41b815826f15c4d0323f923f398c423178d0
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Mask the bd_cnt field in the TX BD properly\n\nThe bd_cnt field in the TX BD specifies the total number of BDs for\nthe TX packet.  The bd_cnt field has 5 bits and the maximum number\nsupported is 32 with the value 0.\n\nCONFIG_MAX_SKB_FRAGS can be modified and the total number of SKB\nfragments can approach or exceed the maximum supported by the chip.\nAdd a macro to properly mask the bd_cnt field so that the value 32\nwill be properly masked and set to 0 in the bd_cnd field.\n\nWithout this patch, the out-of-range bd_cnt value will corrupt the\nTX BD and may cause TX timeout.\n\nThe next patch will check for values exceeding 32."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bnxt_en: Enmascarar correctamente el campo bd_cnt en el TX BD El campo bd_cnt en el TX BD especifica el n\u00famero total de BD para el paquete TX. El campo bd_cnt tiene 5 bits y el n\u00famero m\u00e1ximo admitido es 32 con el valor 0. CONFIG_MAX_SKB_FRAGS se puede modificar y el n\u00famero total de fragmentos SKB puede acercarse o superar el m\u00e1ximo admitido por el chip. Agregue una macro para enmascarar correctamente el campo bd_cnt para que el valor 32 se enmascare correctamente y se establezca en 0 en el campo bd_cnd. Sin este parche, el valor bd_cnt fuera de rango corromper\u00e1 el TX BD y puede causar tiempo de espera de TX. El siguiente parche verificar\u00e1 los valores que excedan 32."
    }
  ],
  "id": "CVE-2025-22108",
  "lastModified": "2025-04-17T20:22:16.240",
  "metrics": {},
  "published": "2025-04-16T15:16:05.083",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/107b25db61122d8f990987895c2912927b8b6e3f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f60b41b815826f15c4d0323f923f398c423178d0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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