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    "cveMetadata": {
        "cveId": "CVE-2021-47062",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-29T22:33:44.294Z",
        "datePublished": "2024-02-29T22:37:36.468Z",
        "dateUpdated": "2026-05-11T13:47:20.656Z"
    },
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                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs\n\nUse the kvm_for_each_vcpu() helper to iterate over vCPUs when encrypting\nVMSAs for SEV, which effectively switches to use online_vcpus instead of\ncreated_vcpus.  This fixes a possible null-pointer dereference as\ncreated_vcpus does not guarantee a vCPU exists, since it is updated at\nthe very beginning of KVM_CREATE_VCPU.  created_vcpus exists to allow the\nbulk of vCPU creation to run in parallel, while still correctly\nrestricting the max number of max vCPUs."
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                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/kvm/svm/sev.c"
                    ],
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                            "lessThan": "bd0cced2ae93195668f983d443f7f17e8efd24d2",
                            "status": "affected",
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                            "lessThan": "ba7bf5d6336aa9c0d977b161bfa420c56d46ee40",
                            "status": "affected",
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                            "lessThan": "c36b16d29f3af5f32fc1b2a3401bf48f71cabee1",
                            "status": "affected",
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
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                            "version": "5.11",
                            "status": "affected"
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                        {
                            "version": "0",
                            "lessThan": "5.11",
                            "status": "unaffected",
                            "versionType": "semver"
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                        {
                            "version": "5.11.21",
                            "lessThanOrEqual": "5.11.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.12.4",
                            "lessThanOrEqual": "5.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.13",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
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                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
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                                    "versionEndExcluding": "5.11.21"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
                    "url": "https://git.kernel.org/stable/c/bd0cced2ae93195668f983d443f7f17e8efd24d2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ba7bf5d6336aa9c0d977b161bfa420c56d46ee40"
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                {
                    "url": "https://git.kernel.org/stable/c/c36b16d29f3af5f32fc1b2a3401bf48f71cabee1"
                }
            ],
            "title": "KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs",
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                                        "Exploitation": "none"
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                                "timestamp": "2024-03-05T22:14:24.335971Z"
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                "title": "CVE Program Container",
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