nvd-json-data-feeds/CVE-2024/CVE-2024-394xx/CVE-2024-39490.json

{
  "id": "CVE-2024-39490",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-10T08:15:11.203",
  "lastModified": "2024-07-11T13:05:54.930",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: fix missing sk_buff release in seg6_input_core\n\nThe seg6_input() function is responsible for adding the SRH into a\npacket, delegating the operation to the seg6_input_core(). This function\nuses the skb_cow_head() to ensure that there is sufficient headroom in\nthe sk_buff for accommodating the link-layer header.\nIn the event that the skb_cow_header() function fails, the\nseg6_input_core() catches the error but it does not release the sk_buff,\nwhich will result in a memory leak.\n\nThis issue was introduced in commit af3b5158b89d (\"ipv6: sr: fix BUG due\nto headroom too small after SRH push\") and persists even after commit\n7a3f5b0de364 (\"netfilter: add netfilter hooks to SRv6 data plane\"),\nwhere the entire seg6_input() code was refactored to deal with netfilter\nhooks.\n\nThe proposed patch addresses the identified memory leak by requiring the\nseg6_input_core() function to release the sk_buff in the event that\nskb_cow_head() fails."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: ipv6: sr: corrige la versi\u00f3n faltante de sk_buff en seg6_input_core La funci\u00f3n seg6_input() es responsable de agregar el SRH a un paquete, delegando la operaci\u00f3n al seg6_input_core(). Esta funci\u00f3n utiliza skb_cow_head() para garantizar que haya suficiente espacio libre en sk_buff para acomodar el encabezado de la capa de enlace. En caso de que la funci\u00f3n skb_cow_header() falle, seg6_input_core() detecta el error pero no libera sk_buff, lo que provocar\u00e1 una p\u00e9rdida de memoria. Este problema se introdujo en el commit af3b5158b89d (\"ipv6: sr: corrige el ERROR debido a un espacio libre demasiado peque\u00f1o despu\u00e9s de la inserci\u00f3n de SRH\") y persiste incluso despu\u00e9s de el commit 7a3f5b0de364 (\"netfilter: agregue enlaces de netfilter al plano de datos SRv6\"), donde todo el seg6_input( ) el c\u00f3digo fue refactorizado para lidiar con los ganchos de netfilter. El parche propuesto aborda la p\u00e9rdida de memoria identificada al requerir que la funci\u00f3n seg6_input_core() libere sk_buff en caso de que skb_cow_head() falle."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5447f9708d9e4c17a647b16a9cb29e9e02820bd9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8f1fc3b86eaea70be6abcae2e9aa7e7b99453864",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e8688218e38111ace457509d8f0cad75f79c1a7a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f4df8c7670a73752201cbde215254598efdf6ce8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f5fec1588642e415a3d72e02140160661b303940",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}