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CVE-2022-4994

🗓️ 30 Jul 2026 09:18:06Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

KVM x86 uses __emulator_pio_in for fast programmed I/O; emulator_pio_in is bypassed when pio count is zero, no functional change.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2022-4994
30 Jul 202609:18
attackerkb
cvelist
Cvelist
CVE-2022-4994 KVM: x86: wean fast IN from emulator_pio_in
30 Jul 202609:18
cvelist
debiancve
Debian CVE
CVE-2022-4994
30 Jul 202609:18
debiancve
euvd
EUVD
EUVD-2022-56012
30 Jul 202609:18
euvd
nvd
NVD
CVE-2022-4994
30 Jul 202610:16
nvd
osv
OSV
DEBIAN-CVE-2022-4994
30 Jul 202612:48
osv
ptsecurity
Positive Technologies
PT-2026-66444
30 Jul 202600:00
ptsecurity
Vulners
CNA
Node
linuxlinux_kernelRange4.106.0
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/x86.c"
    ],
    "versions": [
      {
        "version": "8370c3d08bd98576d97514eca29970e03767a5d1",
        "lessThan": "dc7a4bfde507ffe1d8bef49aba1322f1d20c2cb3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/x86.c"
    ],
    "versions": [
      {
        "version": "4.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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