nvd-json-data-feeds/CVE-2024/CVE-2024-579xx/CVE-2024-57930.json

{
  "id": "CVE-2024-57930",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-01-21T12:15:26.600",
  "lastModified": "2025-01-21T12:15:26.600",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Have process_string() also allow arrays\n\nIn order to catch a common bug where a TRACE_EVENT() TP_fast_assign()\nassigns an address of an allocated string to the ring buffer and then\nreferences it in TP_printk(), which can be executed hours later when the\nstring is free, the function test_event_printk() runs on all events as\nthey are registered to make sure there's no unwanted dereferencing.\n\nIt calls process_string() to handle cases in TP_printk() format that has\n\"%s\". It returns whether or not the string is safe. But it can have some\nfalse positives.\n\nFor instance, xe_bo_move() has:\n\n TP_printk(\"move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s\",\n            __entry->move_lacks_source ? \"yes\" : \"no\", __entry->bo, __entry->size,\n            xe_mem_type_to_name[__entry->old_placement],\n            xe_mem_type_to_name[__entry->new_placement], __get_str(device_id))\n\nWhere the \"%s\" references into xe_mem_type_to_name[]. This is an array of\npointers that should be safe for the event to access. Instead of flagging\nthis as a bad reference, if a reference points to an array, where the\nrecord field is the index, consider it safe."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing: Hacer que process_string() tambi\u00e9n permita matrices Para detectar un error com\u00fan en el que un TP_fast_assign() de TRACE_EVENT() asigna una direcci\u00f3n de una cadena asignada al b\u00fafer de anillo y luego la referencia en TP_printk(), que se puede ejecutar horas despu\u00e9s cuando la cadena est\u00e1 libre, la funci\u00f3n test_event_printk() se ejecuta en todos los eventos a medida que se registran para asegurarse de que no haya desreferenciaciones no deseadas. Llama a process_string() para gestionar los casos en formato TP_printk() que tienen \"%s\". Devuelve si la cadena es segura o no. Pero puede tener algunos falsos positivos. Por ejemplo, xe_bo_move() tiene: TP_printk(\"move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s\", __entry->move_lacks_source ? \"yes\" : \"no\", __entry->bo, __entry->size, xe_mem_type_to_name[__entry->old_placement], xe_mem_type_to_name[__entry->new_placement], __get_str(device_id)) Where the \"%s\" Donde \"%s\" hace referencia a xe_mem_type_to_name[]. Esta es una matriz de punteros a los que el evento deber\u00eda poder acceder de forma segura. En lugar de marcar esto como una referencia incorrecta, si una referencia apunta a una matriz, donde el campo de registro es el \u00edndice, consid\u00e9rela segura."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3bcdc9039a6e9e6e47ed689a37b8d57894a3c571",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/631b1e09e213c86d5a4ce23d45c81af473bb0ac7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/92bd18c74624e5eb9f96e70076aa46293f4b626f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a64e5295ebc4afdefe69cdf16cc286a60ff8ba4b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/afc6717628f959941d7b33728570568b4af1c4b8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}