CVE-2022-49556 KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/svm/sev.c"
    ],
    "versions": [
      {
        "version": "eaf78265a4ab33935d3a0f1407ce4a91aac4d4d5",
        "lessThan": "401bef1f95de92c3a8c6eece46e02fa88d7285ee",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eaf78265a4ab33935d3a0f1407ce4a91aac4d4d5",
        "lessThan": "d8fdb4b24097472ff6b3c0559448200d420b1418",
        "status": "affected",
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      },
      {
        "version": "eaf78265a4ab33935d3a0f1407ce4a91aac4d4d5",
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        "status": "affected",
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      },
      {
        "version": "eaf78265a4ab33935d3a0f1407ce4a91aac4d4d5",
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        "status": "affected",
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      },
      {
        "version": "eaf78265a4ab33935d3a0f1407ce4a91aac4d4d5",
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      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/svm/sev.c"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.124",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.45",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.17.13",
        "lessThanOrEqual": "5.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.18.2",
        "lessThanOrEqual": "5.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]