{
  "cveId": "CVE-2022-4994",
  "url": "https://patchblox.com/security/cve/CVE-2022-4994",
  "summary": "CVE-2022-4994 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-4994, released July 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  KVM: x86: wean fast IN from emulator_pio_in  Use...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  KVM: x86: wean fast IN from emulator_pio_in  Use __emulator_pio_in() directly for fast PIO instead of bouncing through emulator_pio_in() now that __emulator_pio_in() fills \u0022val\u0022 when handling in-kernel PIO.  vcpu-\u003Earch.pio.count is guaranteed to be \u00270\u0027, so this a pure nop.  emulator_pio_in_emulated is now the last caller of emulator_pio_in.  No functional change intended.",
  "published": "2026-07-30T10:16:34Z",
  "severity": "",
  "epss": 0.0019,
  "epssPercentile": 0.08727,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.2-1",
      "fix": "DEBIAN-CVE-2022-4994",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-4994",
      "released": "2026-07-31T14:18:15Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.2-1",
      "fix": "DEBIAN-CVE-2022-4994",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-4994",
      "released": "2026-07-31T14:18:15Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.2-1",
      "fix": "DEBIAN-CVE-2022-4994",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-4994",
      "released": "2026-07-31T14:18:15Z"
    }
  ],
  "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"
  }
}