{
  "id": "CVE-2022-3176",
  "sourceIdentifier": "cve-coordination@google.com",
  "published": "2022-09-16T14:15:09.713",
  "lastModified": "2023-04-11T18:15:23.143",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "There exists a use-after-free in io_uring in the Linux kernel. Signalfd_poll() and binder_poll() use a waitqueue whose lifetime is the current task. It will send a POLLFREE notification to all waiters before the queue is freed. Unfortunately, the io_uring poll doesn't handle POLLFREE. This allows a use-after-free to occur if a signalfd or binder fd is polled with io_uring poll, and the waitqueue gets freed. We recommend upgrading past commit fc78b2fc21f10c4c9c4d5d659a685710ffa63659"
    },
    {
      "lang": "es",
      "value": "Se presenta un uso de memoria previamente liberada en la funci\u00f3n io_uring en el kernel de Linux. Signalfd_poll() y binder_poll() usan una cola de espera cuyo tiempo de vida es la tarea actual. Enviar\u00e1 una notificaci\u00f3n POLLFREE a todos los esperadores antes de que la cola sea liberada. Desafortunadamente, el sondeo io_uring no maneja POLLFREE. Esto permite que sea producido un uso de memoria previamente liberada si un signalfd o binder fd es sondeado con io_uring poll, y la cola de espera es liberada. Recomendamos actualizar el commit fc78b2fc21f10c4c9c4d5d659a685710ffa63659"
    }
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          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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          "baseScore": 7.8,
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