{
  "GSD": {
    "alias": "CVE-2022-3176",
    "description": "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\u0027t 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",
    "id": "GSD-2022-3176",
    "references": [
      "https://advisories.mageia.org/CVE-2022-3176.html",
      "https://www.suse.com/security/cve/CVE-2022-3176.html",
      "https://ubuntu.com/security/CVE-2022-3176"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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        "CVE-2022-3176"
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      "details": "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\u0027t 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",
      "id": "GSD-2022-3176",
      "modified": "2023-12-13T01:19:40.020981Z",
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        "TITLE": "Use-after-free in io_uring in Linux Kernel"
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          "lang": "eng",
          "value": "Bing-Jhong Billy Jheng \u003cbilly@starlabs.sg\u003e"
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      "lastModifiedDate": "2023-04-11T18:15Z",
      "publishedDate": "2022-09-16T14:15Z"
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}