{
  "cveId": "CVE-2022-3176",
  "url": "https://patchblox.com/security/cve/CVE-2022-3176",
  "summary": "CVE-2022-3176 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2022-3176, released September 16, 2022. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: There exists a use-after-free in io_uring in the Linux kernel",
  "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",
  "published": "2022-09-16T14:15:09Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00299,
  "epssPercentile": 0.22781,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.10-15.42",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-3176",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-3176",
      "released": "2022-09-16T14:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-3176",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-3176",
      "released": "2022-09-16T14:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-3176",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-3176",
      "released": "2022-09-16T14:15:09Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.10-15.42.amzn2023",
      "fix": "ALAS2023-2023-070",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-070",
      "released": "2023-02-17T20:46:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}