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CVE-2025-71104 KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer

🗓️ 14 Jan 2026 15:05:53Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 26 Views

KVM x86 HV timer fix prevents VM hard lockup after inactivity by updating periodic expiration to now when past.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/lapic.c"
    ],
    "versions": [
      {
        "version": "d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc",
        "lessThan": "786ed625c125c5cd180d6aaa37e653e3e4ffb8d9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc",
        "lessThan": "d2da0df7bbc4fb4fd7d0a1da704f81a09c72fe73",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc",
        "lessThan": "807dbe8f3862fa7c164155857550ce94b36a11b9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc",
        "lessThan": "7b54ccef865e0aa62e4871d4ada2ba4b9dcb8bed",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc",
        "lessThan": "e746e51947053a02af2ea964593dc4887108d379",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc",
        "lessThan": "e23f46f1a971c73dad2fd63e1408696114ddebe2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d8f2f498d9ed0c5010bc1bbc1146f94c8bf9f8cc",
        "lessThan": "18ab3fc8e880791aa9f7c000261320fc812b5465",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "421e1fadb0b0a648cc75afd5b3c826fa7daeaffc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a69b7b69beae9bb86e7e1b095685087976cba47",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4.14.45",
        "lessThan": "4.15",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.16.13",
        "lessThan": "4.17",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/lapic.c"
    ],
    "versions": [
      {
        "version": "4.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.248",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.198",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.160",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.120",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.64",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.3",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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