CVE-2022-48637

{"id": "CVE-2022-48637", "cveTags": [], "metrics": {}, "published": "2024-04-28T13:15:06.763", "references": [{"url": "https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt: prevent skb UAF after handing over to PTP worker\n\nWhen reading the timestamp is required bnxt_tx_int() hands\nover the ownership of the completed skb to the PTP worker.\nThe skb should not be used afterwards, as the worker may\nrun before the rest of our code and free the skb, leading\nto a use-after-free.\n\nSince dev_kfree_skb_any() accepts NULL make the loss of\nownership more obvious and set skb to NULL."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bnxt: impide que skb UAF se entregue al trabajador de PTP. Cuando se requiere leer la marca de tiempo, bnxt_tx_int() entrega la propiedad del skb completado al trabajador de PTP. El skb no debe usarse despu\u00e9s, ya que el trabajador puede ejecutarse antes que el resto de nuestro c\u00f3digo y liberar el skb, lo que lleva a un use-after-free. Dado que dev_kfree_skb_any() acepta NULL, la p\u00e9rdida de propiedad es m\u00e1s obvia y establece skb en NULL."}], "lastModified": "2024-07-03T01:39:01.937", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}