nvd-json-data-feeds/CVE-2021/CVE-2021-472xx/CVE-2021-47239.json

{
  "id": "CVE-2021-47239",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-21T15:15:13.100",
  "lastModified": "2024-11-21T06:35:41.943",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: fix possible use-after-free in smsc75xx_bind\n\nThe commit 46a8b29c6306 (\"net: usb: fix memory leak in smsc75xx_bind\")\nfails to clean up the work scheduled in smsc75xx_reset->\nsmsc75xx_set_multicast, which leads to use-after-free if the work is\nscheduled to start after the deallocation. In addition, this patch\nalso removes a dangling pointer - dev->data[0].\n\nThis patch calls cancel_work_sync to cancel the scheduled work and set\nthe dangling pointer to NULL."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net:usb: corrige posible use after free en smsc75xx_bind. La confirmaci\u00f3n 46a8b29c6306 (\"net:usb: corrige la p\u00e9rdida de memoria en smsc75xx_bind\") no logra limpiar el trabajo programado en smsc75xx_reset -> smsc75xx_set_multicast, lo que genera use after free si el trabajo est\u00e1 programado para comenzar despu\u00e9s de la desasignaci\u00f3n. Adem\u00e1s, este parche tambi\u00e9n elimina un puntero colgante: dev->data[0]. Este parche llama a cancel_work_sync para cancelar el trabajo programado y establecer el puntero colgante en NULL."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/14616c372a7be01a2fb8c56c9d8debd232b9e43d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4252bf6c2b245f47011098113d405ffad6ad5d5b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    },
    {
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      "url": "https://git.kernel.org/stable/c/7cc8b2e05fcea6edd022d26e82091d781af8fd9b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
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    },
    {
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}