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CVE-2026-68093 KVM: SVM: Bump asid_generation on CPU online to avoid ASID collision after hotplug

🗓️ 10 Aug 2026 11:58:05Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 35 Views

Linux kernel vulnerability: asid generation resets on online, causing collision during hotplug.

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/svm/svm.c"
    ],
    "versions": [
      {
        "version": "774c47f1d78e373a6bd2964f4e278d1ce26c21cb",
        "lessThan": "2028b81321dc757b6875b99c10d908e349c141e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "774c47f1d78e373a6bd2964f4e278d1ce26c21cb",
        "lessThan": "60283726f2845bd78b95efbd0e50b93944780477",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "774c47f1d78e373a6bd2964f4e278d1ce26c21cb",
        "lessThan": "7508916b4b55d6f5ecc68cd09774dabd3a6b4440",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "774c47f1d78e373a6bd2964f4e278d1ce26c21cb",
        "lessThan": "0f33b1c457c2199ed130b92cc2ff363a3f7b9415",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "774c47f1d78e373a6bd2964f4e278d1ce26c21cb",
        "lessThan": "6b542d116acecb83a1ca34e8eace304cff6a4ec9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "774c47f1d78e373a6bd2964f4e278d1ce26c21cb",
        "lessThan": "25f744ffa0c8e799e06250ce2e618367b166b0d4",
        "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/svm/svm.c"
    ],
    "versions": [
      {
        "version": "2.6.21",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.21",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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